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Leading Manufacturer, Supplier & Retailer of Roten L4B Replacement Seal, Dura Tupe Mechanical Seal, John Crane 881 Replacement Seal, Aesseal W01 Replacement Seal and Burgmann G13 Replacement Seal.
The RotenL4B replacement seal is a robust, high-performance single-end cartridge mechanical seal that fits Flowserve38/T01 series applications. With polished stainless steel housing, premium face materials (SiC, TC), versatile elastomer choices (NBR, EPDM, FKM, PTFE), and ratings up to 20m/s, 12bar, and 200°C, it’s ideal for a broad range of pump-driven industrial fluids. Its cartridge design simplifies installation and ensures reliable sealing across varied pump platforms.
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With vast experience and knowledge we are involved in offering a premium quality range of Multi Spring Seal. These are well known in market due to their uniform face loading and reliability. These are easy to install and are used in different types of centrifugal pumps. Moreover, we also assure timely delivery of our products.
Features:
•Independent of direction of rotation•Straight spring•Inside mounted
Multiple Spring Types:
•Oil pump mechanical seal are available in balanced and unbalanced types•They are independent of the direction of rotation. They are inherently balanced for pressure•They are tough and rigid•It can withstand high temperatures up to 500 degree Fahrenheit•Shaft speed can go up to 3600 rpm•Offered in single spring and multiple spring types. They are available at very cost effective prices
the John Crane881 cartridge seal provides a versatile, easy-to-fit sealing solution with robust pressure, temperature, and speed characteristics. Ideal for industrial pumps across multiple sectors, it delivers reliable performance with minimal maintenance.
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Metal Components: Precision-machined gland and sleeve, typically SS316 or similar corrosion-resistant alloys .
\\nSeal Faces: Carbon graphite vs silicon carbide or tungsten carbide—available in balanced configurations depending on pressure needs.
Drive Mechanism: Positive setscrew drive; option for rotatingseat (RS) for high-speed applications
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Temperature Range: –40°C to +260°C (–40°F to +500°F), depending on material choices .
\\nPressure Rating:
\\n81: 22.8bar (325psi)
\\n81T (narrow version): 13.8bar (200psi) .
Type8B1/8B1T variants (high-pressure) offer higher ratings, up to 76bar .
Speed Capability: Up to 25m/s (5, 000fpm); rotatingseat option allows higher speeds
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Ideal for general-purpose industrial pumps in chemical, petrochemical, water, and oil & gas sectors.
\\nSuitable for high-pressure, high-speed applications when using balanced Type8B1 variants or rotating-seat versions.
\\nCertification & Compatibility: Meets industry norms like API, ISO for cartridge / pusher seals. Fully compatible with seal support systems and face technologies from John Crane
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The W01 seal is part of AESSEAL’s Component Seal WaveSpring (Wseries) range, designed to fit a variety of industrial pumps including water, oil, and mild chemical services . It’s commonly offered by Indian OEMs (e.g., Harini Engineering) as a polished stainless-steel, round wave-spring seal.
Sealing Type: Single-end, unbalanced, wave-spring mechanical seal—suitable for moderate pressures .
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Chemical Resistance: Handles clean water, lubricants, light acids/alkalis; elastomer selection ensures compatibility .
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The G13 is the stationary seat (stator) portion of Burgmann’s elastomer bellows mechanical seal arrangement, commonly paired with MG1, MG12, or MG13 rotating bellows assemblies. It’s offered as a standalone replacement part compatible with various seal lines including Qseals ST13, Vulcan 8B and Eriks SFO
Primary Uses: Employed in water treatment, slurry and wastewater pumps, chemical and petroleum processes, industrial rotary equipment
Performance Benefits:
\nCompact design with simple fitment
\nTolerant of shaft misalignment and runout
\nFlexible axial compensation via bellows
\nSuitable for most abrasive, corrosive, or fluid-handling contexts.
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The Burgmann G60 is a stationary (seat) stator—the stationary component of a mechanical seal assembly. It\'s commonly paired with rubber-bellows rotary seals like Burgmann MG series (e.g., MG1, MG13). These stators are precision-seated to form a sealing interface with the rotating faces of the mating ring
The G60 is just the stationary stator of a mechanical seal (free faces: Ceramic, SiC, or TC).
\nIt pairs with a rotary MG1 seal (bellows-type) rated for ≤1.2MPa, –20°C to +120°C, up to 10m/s
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A Mechanical Chemical Seal is a specialized sealing device engineered to operate in highly corrosive and chemically aggressive environments. These seals are specifically designed for applications involving hazardous, toxic, or reactive chemicals that demand both superior chemical resistance and long-term reliability. Used extensively in chemical processing plants, pharmaceuticals, petrochemicals, and refineries, these seals prevent leakage of dangerous fluids while maintaining process integrity and safety.
Unlike general-purpose mechanical seals, chemical seals are constructed using advanced, chemically inert materials that can withstand extreme pH ranges, elevated temperatures, and high pressures. The goal is to provide a leak-free, low-maintenance sealing solution that meets stringent safety and environmental standards.
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A carbon mechanical seal uses carbon-graphite material for the sealing face, typically paired with a harder counterface (like silicon carbide or tungsten carbide). This seal is designed to fit rotary equipment—such as pumps, compressors, and mixers—and prevent fluid or gas leakage at the shaft interface .
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Temperature Range: From cryogenic conditions to over 500°F (≈260°C); specialized grades handle even higher, up to 1150°F in inert environments .
\\nPressure & Wear Capability: Engineered to withstand high pressure and mechanical wear. Carbon-graphite materials are selected to endure thermal shock and adhesive or abrasive wear .
\\nDry Running Tolerance: Self-lubrication enables safer operation when fluid lubrication is intermittent
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Chemical Compatibility – Resistant to broad fluid types including acids, solvents, and aggressive media .
\\nLow Friction & Energy Efficiency – Naturally lubricious, requiring less power to operate and generating less heat.
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The HEHOM Mechanical Seal, manufactured by Harini Engineering in Tirupur, Tamil Nadu, is a round, polished SS304 stainless steel seal designed for external mounting on shafts, often used in sanitary pumps and light industrial applications.It’s offered as a single-seal assembly suitable for compact gland arrangements with ease of maintenance and corrosion resistance.
Key applications: Used in small to mid-size sanitary and industrial pumps, mixers, and compressors—especially where clean operation and minimal fluid contamination are critical.
\nAdvantages:
\nExternal springs improve serviceability and reduce fouling
\nStainless steel polish enhances hygiene and corrosion resistance
\nAdaptable sizing fits various shaft diameters and gland spaces
\nBalanced design reduces friction and extends seal life
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The Burgmann M7N (M07) mechanical seal, often referred to as the "wave-spring seal, " is a robust, unbalanced, single mechanical seal designed for a wide range of rotary equipment applications.
Introduced by Burgmann, the M7N (also called M07 in some catalogs) is engineered to meet DIN 24960 and ISO 3069 standards.This bi-directional, unbalanced seal is equipped with a non-welded continuous wave spring (or super-sinus/coil spring), providing uniform face loading and allowing for axial movement of the rotary ring
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The Roten90 mechanical seal is a robust cartridge-style, multi-spring design suitable for 90mm shafts—ideal for chemical pumps and industrial fluid services. It features durable CAR/SIC faces, PTFE secondary seals, and stainless steel or Hastelloy hardware. With pressure ratings up to 12bar, temperatures to 200–250°C, and speeds to 15m/s, it’s compatible with John Crane, Burgmann, Sterling, Aesseal, and Flowserve seal types. Widely stocked, ISO-quality sealed, and easy to install, it offers reliable performance across diverse pump systems.
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Glass and carbide faces, combined with PTFE/Viton/EPDM, enable extended chemical resistance—including mild acids, solvents, and process fluids
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The John Crane Type81 is a rugged, general-purpose elastomer Oring pusher seal featuring a multi-spring, unbalanced design ideal for a wide range of industrial fluids and rotating equipment. It excels in environments demanding reliability and simplicity, making it a workhorse in sectors like chemical processing, oil & gas, water treatment, and petrochemicals
The seal is broadly specified for centrifugal pumps, mixers, agitators, compressors, fans, and other rotary machinery. It handles diverse media such as water, oils, chemicals, petrochemicals, and slurries in sectors including oil & gas, refinery, marine, process industries, petrochemical, and food & beverage
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The Type58U is a general-purpose, DIN-compliant, multi-spring Oring pusher seal, designed primarily for low- to medium-pressure duties in process, refinery, petrochemical, and general rotating equipment such as pumps. It meets the DIN24960 (also known as EN12756), ISO3069, and API610 standards, ensuring broad compatibility and performance reliability
Ideal for chemical, petrochemical, oil & gas, refrigeration, and water applications. It suits process pumps, vacuum pumps, compressors, agitators, and boilers in midrange pressure applications (≤17bar). Its rugged multi-spring, compact design is well suited to rotating equipment within tight axial envelope requirements
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The Type21 mechanical seal (also styled 21T) is a single-end, elastomer bellows mechanical seal, originally developed by John Crane and now a de facto industry standard . It’s compatible with a broad range of rotating equipment, including centrifugal, rotary, and turbine pumps, mixers, compressors, chillers, and agitators. Common application areas include water treatment, pulp & paper, food & beverage, wastewater, HVAC, pool/spa systems, and general industrial processes
Versatility in mounting and pump compatibility.
\nLow leakage due to balanced face loading.
\nSelf-compensation for wear, run-out, and axial movement.
\nMinimal clogging from outside-spring and bellows design.
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Field-serviceable, with easily replaceable parts.
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The HE160 Mechanical Seal is a high-performance, balanced pusher-type seal designed for demanding industrial applications involving a variety of fluids under challenging operating conditions. As part of the HE series, the HE160 combines durability, versatility, and precise engineering to offer a dependable sealing solution for pumps, mixers, and other rotating equipment used across industries like chemical processing, petrochemical, water treatment, pulp and paper, food and beverage, and pharmaceuticals.
\nConstructed with superior-grade materials, the HE160 Mechanical Seal is known for its resistance to wear, corrosion, and high temperatures. The seal faces are commonly manufactured from premium Silicon Carbide (SiC), Tungsten Carbide (TC), or Resin-impregnated Carbon, depending on the application\'s specific fluid compatibility and operating parameters. These materials offer excellent surface hardness and low friction coefficients, allowing for extended service life even in abrasive or chemically aggressive media.
\nThe secondary sealing components, such as O-rings or gaskets, are made from elastomers like Viton, EPDM, or Nitrile (NBR), offering resistance to a wide range of chemicals and temperature extremes. The metallic parts, typically SS304 or SS316 stainless steel, provide strength, corrosion resistance, and structural stability. This blend of materials makes the HE160 a go-to solution for both standard and hazardous fluid systems.
\nA key design feature of the HE160 is its balanced mechanical configuration, which reduces axial loading on the seal faces and minimizes distortion under pressure. This allows the seal to perform reliably at pressures of up to 20 bar and shaft speeds of up to 3600 RPM. The balanced nature also reduces heat generation, preventing premature wear and leakage. Additionally, the pusher design accommodates axial shaft movement and thermal expansion, ensuring continuous sealing performance even under fluctuating load and temperature conditions.
\nWith a typical operating temperature range from -20°C to +180°C, the HE160 is well-suited for both chilled and high-temperature process environments. It is available in a range of shaft sizes, generally from 20 mm to 100 mm, and can be custom-adapted to suit specific equipment or installation needs. The seal’s modular structure and standard compliance (DIN 24960 / ISO 3069) ensure compatibility with most industrial pump types and ease of replacement.
\nThanks to its rugged construction, the HE160 is especially suited for handling corrosive chemicals, light slurries, hydrocarbon-based fluids, water, and various organic compounds. It is often used in centrifugal pumps, end-suction pumps, and vertical in-line pumps where sealing integrity is critical to plant safety and uptime.
\nIn practical terms, the HE160 Mechanical Seal is favored for its easy installation, low maintenance needs, and long operational life. It offers a significant return on investment by reducing downtime, leakage, and equipment wear caused by inferior sealing systems.
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In summary, the HE160 Mechanical Seal stands out for its engineering precision, material resilience, and operational flexibility. Whether used in high-pressure chemical systems or general-purpose industrial pumps, it consistently delivers robust sealing performance, helping industries maintain safety, efficiency, and reliability in their fluid-handling operations.
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The HE92-42 Mechanical Seal is a precision-engineered, high-performance mechanical seal specifically designed for use in pumps, agitators, and rotating equipment operating under demanding industrial conditions. Known for its rugged construction and long service life, this seal is particularly suited for applications in the chemical, petrochemical, pharmaceutical, water treatment, and food processing industries.
\nThe HE92-42 is a single, balanced, pusher-type mechanical seal, which allows it to handle moderate to high pressures while maintaining excellent sealing performance. The balanced design minimizes face load and reduces friction between seal faces, resulting in lower heat generation and increased durability. It is engineered to accommodate axial shaft movements and moderate misalignments, offering operational flexibility across various equipment setups.
\nThe seal faces of the HE92-42 are available in high-grade materials such as Silicon Carbide (SiC), Tungsten Carbide (TC), or Resin-impregnated Carbon, selected based on fluid compatibility, process requirements, and desired thermal performance. These materials provide excellent resistance to wear, corrosion, and thermal stress, ensuring reliability in both corrosive and abrasive media.
\nThe secondary sealing components, including O-rings and gaskets, are made from premium elastomers such as Viton, EPDM, or Nitrile (NBR). These materials are chosen for their chemical compatibility, resilience, and ability to function across a wide temperature spectrum. The metallic components, including the springs and gland rings, are typically manufactured using stainless steel grades SS304 or SS316, offering superior strength and corrosion resistance in harsh environments.
\nThe HE92-42 Mechanical Seal is capable of operating at pressures up to 20 bar and shaft speeds of up to 3600 RPM. It is also engineered to function within a broad temperature range from -20°C to +180°C, making it suitable for both cold and high-temperature fluids. This makes the seal ideal for handling acids, bases, oils, solvents, light slurries, and water, among other process fluids.
\nThis seal conforms to DIN 24960 and ISO 3069 standards, ensuring compatibility with a wide range of pump brands and types. Its modular, compact construction allows for easy installation, replacement, and maintenance, reducing downtime and ensuring continued productivity in industrial environments.
\nApplications for the HE92-42 Mechanical Seal include its use in centrifugal pumps, vacuum pumps, agitators, compressors, and other rotating process equipment. Due to its versatile design and material flexibility, it is often the seal of choice for operators looking to standardize across multiple systems while maintaining high sealing performance.
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In conclusion, the HE92-42 Mechanical Seal delivers dependable sealing under varying operational conditions, with optimized material selection and design engineering for durability, efficiency, and chemical resistance. Whether in continuous or batch processing environments, it helps reduce leakage, lower maintenance costs, and extend the lifespan of the machinery it serves.
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A mechanical seal in Grundfos pumps—used widely in systems like CR, SE, Sarlin, CM, and submersibles—is an engineered barrier at the shaft to prevent fluid leakage and environmental ingress. It features two precision-mated faces (one rotating with the shaft, one stationary) pressed together by a spring and small fluid film (0.00025mm thick) to maintain sealing during operation
Grundfos provides various standard and specialist seals tailored to water, chemical, sewage, and thermal applications, with material pairings optimized for pressure, temperature, chemical compatibility, contamination, and viscosity
Low Leakage: Optimally flat seal faces riding on a thin lubricating film ensure minimal leakage when correctly installed
Contamination Resistance: External springs and bellows greatly reduce clogging in abrasive or dirty fluids
Modular Installation: Cartridge and semi-cartridge systems enable fast, field serviceable replacements without full pump teardown
Robust Performance: Proven reliability in water/wastewater, chemical, oil, HVAC, marine, pulp & paper industries .
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The H74D is a dual (double-face), multiplespring, Oring–driven mechanical seal from EagleBurgmann, engineered for balanced sealing performance in both directions—ideal for contaminated, abrasive, or moderate-to-corrosive fluids.
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Pressure Rating: Up to 2.5MPa (25bar / ≈360psi) Axial Float: ±0.1mm to accommodate shaft movement.
Widely used in:
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Water and wastewater treatment
\\nChemical processing
\\nOil, sludge, and slightly abrasive fluids
\\nSewage pumps, dosing units, and pumps with stringy/dirty media.
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The Roten2 / Uniten2 mechanical seal is a reliable, widely compatible cartridge seal suitable for multiple pump types and media. With robust materials (SiC/TC), flexible elastomers, and adherence to global seal standards, it performs in moderate pressures and temperatures, with simple installation and extensive aftermarket support.
Suitable for rotary pumps including Pedrollo, Lowara, Calpeda, TSVK, SIHI, Inox, Flowserve, Vulcan, Burgmann etc.
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Pump Types: Suitable for rotary pumps including Pedrollo, Lowara, Calpeda, TSVK, SIHI, Inox, Flowserve, Vulcan, Burgmann etc. .
\nMedia: Handles clean water, wastewater, oil, mild corrosive fluids, and sanitary liquids .
\nCertifications & Standards: Built to DIN24960, ISO3069, EN12756, API 628; many aftermarket versions are ISO 9001 certified
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Temperature Range: –40°C to +180–200°C (dependent on elastomer) .
\nPressure Rating: Up to 1.0MPa (10bar); some rubber bellows versions support up to 25bar .
\nShaft Surface Speed: Ratings up to 10m/s (some sources cite 20m/s for balanced variants) .
\nSeal Type: Typically single-end, unbalanced conical-spring or bellows style; balanced O-ring style also available (N42 series) .
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The BT-FN is a single, unbalanced mechanical seal designed for plain shafts. It features a conical spring that rotates with the shaft, making it dependent on the direction of rotation. Torque transmission is achieved through this conical spring mechanism. The seal is particularly suited for applications involving clean water, wastewater, and light chemical media
Single seal configuration
Unbalanced design
Conical spring rotating with the shaft
Direction-dependent operation
Torque transmission via conical spring
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The EagleBurgmann MFL85N (HE) is a balanced, single, metalbellows seal designed for plain shafts and equipped with a rotating metal bellows. Tailored for extreme temperatures and high-viscosity fluids, it ensures adaptability across diverse industrial settings.
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The HE160A Mechanical Seal is a robust and versatile sealing solution engineered for precision and reliability in a wide variety of industrial fluid handling systems. Known for its superior construction and dependable performance, the HE160A is ideal for use in pumps, mixers, and rotating equipment across diverse sectors including chemical processing, petrochemical industries, food and beverage, pharmaceuticals, water treatment, and power generation.
\nThis seal is designed with a single balanced, pusher-type configuration, which allows it to operate under varying pressure conditions while maintaining stability and minimal leakage. The balanced design significantly reduces the axial load on the seal faces, improving the seal’s longevity and reducing wear, even in high-pressure systems. Its pusher mechanism ensures consistent sealing even when faced with shaft movements, thermal expansion, or misalignments.
\nThe HE160A typically uses high-grade materials for optimal performance and resistance. The seal faces are made from premium-grade materials such as Tungsten Carbide, Silicon Carbide, or Carbon, which provide excellent thermal and chemical resistance. These materials are highly durable and capable of withstanding abrasive and corrosive media. The secondary sealing elements are manufactured from elastomers like Viton, EPDM, or Nitrile (NBR), selected based on compatibility with the process fluid. The metal components are generally crafted from SS316 or SS304 stainless steel, offering mechanical strength and corrosion resistance.
\nOne of the distinguishing features of the HE160A is its modular and compact design, which facilitates quick installation and easy maintenance without dismantling the equipment entirely. The mechanical seal is engineered to operate efficiently under a temperature range from -20°C to +180°C, making it suitable for both chilled and high-temperature processes. It can withstand pressures up to 20 bar and shaft speeds up to 3600 RPM, depending on the size and material configuration.
\nAvailable in shaft sizes ranging typically from 20 mm to 100 mm, the HE160A can be customized to fit specific application needs. The seal also offers excellent chemical compatibility, allowing it to handle aggressive chemicals, slurry, light hydrocarbons, and other industrial fluids. Its design accommodates minor shaft misalignment and vibration, ensuring consistent performance over long operating cycles.
\nThe HE160A complies with DIN 24960 and ISO 3069 standards, ensuring compatibility with a wide range of pump brands and models. It is often used as a replacement or equivalent for well-known international sealing systems such as Burgmann M7N and John Crane Type 21 or 2100, making it a reliable alternative for OEM applications.
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Maintenance professionals prefer the HE160A for its reliable sealing, low friction operation, and extended service intervals. Whether used in clean water systems or aggressive process media, this seal minimizes unplanned downtimes and reduces overall lifecycle costs.
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The HE Burgmann M37/M37G Replacement Seal is a high-performance, elastomer bellows mechanical seal designed to meet the sealing demands of a wide variety of rotating equipment. It serves as a direct interchangeable replacement for the original Burgmann M37 and M37G models, maintaining the same level of reliability, durability, and compatibility across various pump types and process conditions.
This seal features a single-spring, elastomer bellows design, which provides self-adjusting axial movement to accommodate shaft misalignment, vibration, and wear. The elastomer bellows also eliminates the need for dynamic O-rings, reducing the potential for secondary sealing issues. The M37 model is a single-directional seal, designed for clockwise shaft rotation, while the M37G variant is balanced, enabling it to operate effectively in higher-pressure systems.
The mechanical seal includes:
Rotary face: Typically made from high-grade Carbon, Silicon Carbide, or Tungsten Carbide
Stationary seat: Options include Ceramic, Silicon Carbide, or Tungsten Carbide
Secondary seal: Constructed from robust elastomers such as Nitrile (NBR), Viton (FKM), EPDM, or Kalrez, depending on chemical compatibility
Metal components: Stainless steel (SS304/SS316) for spring and retainer, ensuring corrosion resistance and mechanical strength
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The HEGLF3 is a singleend, balanced mechanical seal, designed for use in centrifugal pumps—particularly Grundfos CR/CRI/CRN series and similar models. It’s commonly supplied as a semicartridge or flange cartridge seal for easy installation and reliable performance in water, oil, sewage, and mildly corrosive fluids
Fluids: Effective with clean water, sewage water, oils, and moderately corrosive media—thanks to durable face and elastomer selection
Chemical Resistance: Dependent on elastomer choice—EPDM resists acids and alkalis; Viton/NBR provide broad chemical compatibility
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The JohnCrane Type1 series elastomer bellows mechanical seal—including the 1A variant—is renowned as an "industrial workhorse." It features a fullconvolution elastomer bellows that provides automatic adjustment for shaft eccentricity, axial movement, and primary ring wear. A singlecoil, nonclogging spring architecture drives reliable performance in dirty or low-lubricity fluids, ensuring minimal drive torque and reduced stress on the bellows
The 1A is essentially a variant of the Type1, designed for high-speed, general-duty pump applications. It falls under the same performance family, offering balanced sealing via the bellows—without the external spring typical in Type1B.
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The Type1B is a balanced, full-convolution elastomer bellows seal, part of John Crane’s iconic Type1 series. It builds on the reliability of its unbalanced counterpart by offering enhanced pressure capability—up to 82bar (1200psi)—while maintaining performance under a wide range of temperatures and process conditions
Ideal for process pumps, mixers, compressors, agitators, and general rotary equipment in industries like:
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Petrochemical
\nChemical processing
\nPulp & paper
\nWastewater
\nFood & beverage
\nPower generation
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The HE290 is abalanced, cartridge-style mechanical seal, designed for versatile use in centrifugal, process, eccentric screw, and chemical pumps. It excels in demanding industries—petrochemical, chemical, pharmaceutical, pulp & paper, water/wastewater, food & beverage—where operational reliability and easy maintenance are essential
Reliable sealing across a broad pressure and temperature spectrum
\nBalanced operation supports high-pressure applications without excessive wear
\nMinimal radial space reduces installation constraints
\nNon-contacting springs remain unexposed to pumped media, reducing clogging or wear
\nBi-directional compatibility simplifies pump system configurations
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The HE140 is an outside-mounted, dynamic-balanced mechanical seal commonly used in pumps and compressors where space within a stuffing box is limited. Its design ensures an enhanced lifespan, versatility in operating conditions, and suitability for aggressive fluids
The HE140 is a stainless-steel, outside-mounted, balanced mechanical seal, polished for corrosion resistance and industrial durability. It is available in various sizes to suit different shaft diameters. Withstanding pressures up to 10–20bar and temperatures in the range of –20°C to +180°C, it is suitable for many pump and compressor applications. However, specifics like exact diameters, shaft speed, sealing face materials, certifications, and warranty require direct inquiry with the manufacturer.
\nPressure rating: Vacuum to 30bar (700mmHg up to 30bar)
Shaft movement tolerance: ±1mm in both axial and radial directions
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The Burgmann HJ92N is a balanced, wavespring, Oring pusher seal, designed for single-end use on plain (unstepped) shafts. It’s engineered for rugged operation in viscous or solids-containing media, featuring a spring-protection design that prevents clogging and shaft damage even in harsh fluids.
Color & Finishing: Metallic stainless body with polished gland; seal faces are dark (carbon, SiC, TC) .
\\nShape: Compact, cylindrical cartridge family with integrated wave spring and O-ring drive collar .
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Shaft Diameter (d): 18–100mm (0.625″–4″) .
\\nPressure Rating:
\\nStandard: up to 25bar (363psi); version for >100mm shafts rated to 50bar (725psi) .
\\nTemperature Range: -50°C to +220°C; variants rated for -20°C to +180°C (+430°F).
\\nMaximum Speed: Surface speeds up to 20m/s (66ft/s); typical limits around 15m/s (50ft/s).
\\nAxial Flexibility: Accommodates ±0.5mm shaft movement.
Balanced, non-clogging seal: Encapsulated wave spring prevents solid ingress and maintains reliable operation.
\\nReversible functionality: Works regardless of rotation direction without modifying the seal.
\\nAdaptable: Optional variants for vacuum conditions or sterile/food-grade tasks; built to EN12756 standard .
\\nTargeted usage: Suitable for abrasive and viscous fluids—e.g. sugar juice, sludge, slurry, dairy products, wastewater, textile, pulp & paper, and mining .
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The HE80D Mechanical Seal is a high-performance, double-spring, pusher-type seal engineered to deliver exceptional reliability and longevity in demanding industrial applications. Designed for use in centrifugal pumps, mixers, agitators, and rotating equipment, the HE80D is particularly suited for processing operations in industries such as chemical, pharmaceutical, food and beverage, wastewater treatment, and light hydrocarbon handling.
\nAt its core, the HE80D is a single, unbalanced mechanical seal with a compact and robust construction. It features a double conical spring design, which provides even pressure distribution across the seal faces, ensuring a consistent and reliable sealing interface. This arrangement allows for effective sealing even under conditions of moderate shaft misalignment or vibration, making the HE80D a preferred choice in situations where stability and continuous operation are critical.
\nThe sealing faces of the HE80D are typically manufactured from combinations like Carbon vs. Ceramic, Silicon Carbide vs. Carbon, or Tungsten Carbide vs. Carbon, selected according to the application environment and the nature of the media being sealed. These face materials offer a balance of hardness, thermal stability, and chemical resistance, ensuring long service life and low wear. The carbon face, often resin-impregnated, provides excellent self-lubricating properties, while the harder mating face (ceramic or carbide) resists abrasion and chemical attack.
\nThe secondary seals (O-rings or gaskets) are available in Viton®, EPDM, Nitrile (NBR), or PTFE, depending on the chemical compatibility requirements. The choice of elastomer ensures optimal resistance to aggressive fluids, temperature variations, and process contaminants. The metallic components, such as the springs, retainers, and gland plates, are typically made from SS304 or SS316 stainless steel, providing mechanical strength and corrosion resistance, especially in chemically exposed environments.
\nThe HE80D is designed for operating pressures up to 12 bar and shaft speeds up to 3600 RPM, with a typical temperature range from -20°C to +140°C. These specifications make it ideal for handling a wide range of liquids, including water, light chemicals, solvents, and oils. Its versatility allows for integration into both horizontal and vertical equipment, and it is particularly effective in clean media or lightly contaminated fluids.
\nOne of the standout features of the HE80D is its easy installation and maintenance. The seal’s structure allows for quick assembly without the need for complex tools or precision alignment, reducing downtime during replacement or servicing. It is designed to comply with DIN 24960 / ISO 3069 standards, ensuring interchangeability with other mechanical seals and compatibility with standard pump housings.
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In summary, the HE80D Mechanical Seal is a versatile and durable solution for fluid sealing in medium-duty industrial applications. Its advanced design, material flexibility, and performance range make it a cost-effective choice for operators seeking reliability and low maintenance costs. Whether in continuous or intermittent service, the HE80D ensures excellent sealing integrity, operational efficiency, and reduced equipment wear.
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The HE92B-53 Mechanical Seal is a precision-engineered sealing unit designed to offer high reliability and durability in industrial rotary equipment. Commonly used in centrifugal pumps, chemical processing units, water treatment systems, and other rotating machinery, this seal model is tailored for applications that demand a robust sealing mechanism with resistance to harsh chemicals, high temperatures, and elevated operating pressures.
\nAt the core of the HE92B-53’s design is its single balanced, pusher-type configuration, allowing it to maintain sealing integrity even under fluctuating operating conditions. The balanced design reduces face load pressure, which minimizes wear, frictional heat, and energy loss, thereby increasing seal life and operational efficiency. The pusher-type element is particularly beneficial in handling axial movements of the shaft caused by thermal expansion or process changes.
\nThis seal is constructed from high-grade, corrosion- and wear-resistant materials. The primary sealing faces are typically composed of Silicon Carbide, Tungsten Carbide, or Resin-Impregnated Carbon, chosen based on specific fluid compatibility. These materials are known for their superior hardness and resistance to thermal shock, abrasion, and chemical attack. The mating ring is precisely lapped to ensure a leak-tight seal, even in demanding applications.
\nThe secondary sealing elements, such as O-rings or gaskets, are made from elastomers like Viton, EPDM, or Nitrile (NBR). Each of these materials is selected for their chemical resistance and flexibility across a broad temperature range. The metallic components of the HE92B-53—springs, retainers, and gland plates—are fabricated from stainless steel grades SS316 or SS304, offering excellent structural integrity and corrosion protection.
\nThe HE92B-53 Mechanical Seal is engineered to handle pressures up to 20 bar and shaft speeds of up to 3600 RPM, making it suitable for both moderate and high-speed applications. It operates effectively within a temperature range of -20°C to +180°C, ensuring performance in both chilled and heated fluid systems. Thanks to its high tensile strength and low leakage design, this seal helps reduce environmental risks and ensures process efficiency.
\nIts modular construction enables easy installation and maintenance. It conforms to international standards such as DIN 24960 and ISO 3069, ensuring compatibility with a wide range of pump models and facilitating global replacements. This makes the HE92B-53 a preferred choice for OEMs and MRO teams alike.
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In terms of application, the HE92B-53 is suitable for sealing chemicals, solvents, hydrocarbons, slurries, water, and light oils. It finds extensive use in industries such as chemical processing, oil and gas, pharmaceuticals, pulp and paper, food and beverage, and general industrial operations.
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The HE70 Mechanical Seal, commonly offered by Harini Engineering (Tirupur, Tamil Nadu), is an external-mounted, multi-spring, reverse-balanced single-face mechanical seal constructed from SS304 stainless steel. It’s designed for seamless compatibility with shaft sizes from ½″ to 4″ (12–100mm) and suitable for various industrial fluids
Compact and easy to install with external spring access
\nFlexibility in face materials to match fluid characteristics
\nBalanced design minimizes friction and prolongs life
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Cost-effective, especially for small-batch industrial use
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The HE208 mechanical seal, designed and manufactured by Harini Engineering in Tirupur, is a highly durable, single-spring rotary seal primarily used in sanitary and industrial pump applications. Engineered with a polished stainless-steel housing (SS304), it excels in sectors such as food processing, dairy, pharmaceuticals, beverages, and general chemical handling
Hygienic Maintenance: Polished SS prevents microbial contamination.
\nCorrosion Resistance: SS304 body with chemical-resistant elastomers ensures durability.
\nSimplicity & Cost: Unbalanced, single-spring design reduces complexity and cost.
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Versatility: Compatible with a variety of sanitary and industrial pumps without extensive modifications
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The JohnCrane Type502 is a unitized elastomer bellows mechanical seal designed to perform under demanding conditions in confined gland spaces. Its compact, fullconvolution bellows construction allows for efficient installation in restricted-length shafts, while the integrated, one-piece design simplifies assembly and minimizes leakage pathways
At the core of the Type502 is a fullcollapsible rubber bellows that provides flexibility, vibration tolerance, and automatic self-alignment—compensating for shaft runout and end play without additional hardware.
A single-coil, non-clogging spring ensures consistent face loading, offering more reliability than multi-spring designs especially in solids-laden fluids, as only one spring remains exposed to contamination.
Face and seat materials vary based on application: common pairings include carbon graphite, silicon carbide, and tungsten carbide, supported by secondary seals in NBR, EPDM, or FKM (Viton).
Metallic components are built from stainless steels (304/316), and specialty alloys like Hastelloy or Monel are available upon request .
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The Type59U—also known as T59U—is a versatile, multispring, unbalanced PTFE wedge mechanical seal designed according to DIN24960 (ISO3069) standards. It’s tailored for general low to mediumpressure duties across a wide range of rotating equipment—especially process pumps in chemical, petrochemical, refinery, and pharmaceutical industries
This compact pusher-style design fits neatly on straight-through shafts and handles moderate misalignment via multiple S-ring elastomers that maintain consistent face loading. Despite being unbalanced, it offers reliable performance in diverse service conditions
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The HE60 mechanical seal is a robust, polished-SS balanced single-face seal with external springs, supplying reliable sealing in industrial pumps and rotating equipment. It supports variable shaft sizes, offers easy maintenance, and performs well under typical industrial pressures and temperatures.
\nCommonly used in centrifugal pumps, mixers, and compressors across industries such as chemical processing, water treatment, and general industrial services.
\nEspecially beneficial where compact external sealing and minimal shaft gland space are needed.
Corrosion Resistance: SS304 construction guards well against a broad range of industrial fluids.
\nMaintenance Ease: Outside-mounted springs allow quick disassembly and servicing without disturbing the seal faces.
\nBalanced Design: Promotes low friction, smoother start-up, and lower heat under pressure—boosting reliability.
\nVersatility: Suitable for varied applications, from water and oil to mildly abrasive or chemical fluids.
Temperature Range: While specific values for HE60 aren\'t listed, SS304 with typical elastomers handles roughly –20°C to +120°C, adaptable based on elastomer-grade selection.
\nPressure Handling: Capable of withstanding industrial conditions—likely up to 10–20bar, consistent with seals of this type.
\nSpeed Capability: Though not documented, external-balanced seals in this category generally support shaft speeds up to 3, 600 RPM (15–20m/s surface speed).
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BurgmannCARTEXSN replacement seal—a widely used cartridge mechanical seal renowned for reliability, versatility, and efficiency.
Ideal for numerous industries including:
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Process and chemical
\\nPower generation & nuclear
\\nPharmaceutical, food & beverage, water & wastewater
\\nMining, pulp & paper
\\nEmerging sectors: CCUS, lithium, hydrogen, sustainable plastics, alternative fuels
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Cartridge seal systems like CARTEX deliver longer service life and 30% lower three-year lifecycle costs compared to component seals,
Benefits include:
Reduced spare parts use
\\nLower repair and production downtimes
\\nOptimized overall investment despite higher initial price
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Preassembled cartridge ensures errorproof installation.
\\nBalanced singleseal structure handles bidirectional shaft rotation.
\\nMaterial flexibility: multiple face, seat, and seal elastomer materials allow adaptation to diverse fluids and environments.
\\nServiceability and retrofit potential: No need for seal chamber modifications.
\\nRobust design: Larger springs, heavier face cross-sections, and stable drive pins enhance durability and reduce leakage points.
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The JohnCrane Type2100 is a robust, unitized elastomer-bellows mechanical seal engineered for demanding fluid-handling applications.At the heart of its design is a non-clogging, single-coil spring that maintains face loading under all operating conditions. The innovative bellows is pressure-supported, preventing collapse or folding at high pressures.
\nA positive drive mechanism using interlocking tangs ensures the rotary face tracks accurately with the shaft, avoiding slippage during system upsets.
The Type2100 excels in centrifugal, rotary, and turbine pumps, as well as compressors, chillers, and similar rotating equipment.It is widely used in water-based processes—water treatment, HVAC systems, potable water, wastewater, pool/spa services, and general industrial fluid ’s also suitable for pulp/paper, food processing, and marine systems.
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HE950-style mechanical seal (likely part of the Burgmann HJ92N/H7N family) is a balanced, spring-assisted, corrosion-resistant round cartridge seal, engineered for industrial applications involving pressures up to 25bar, temperatures from –50°C to +220°C, and shaft speeds up to 3, 600RPM. Construction uses tough materials—SiC/TC/carbon faces, stainless or Hastelloy metal, and elastomers chosen per fluid compatibility. Dimensional specs (ID, OD, thickness, weight) vary by size and must be confirmed via datasheet. Certifications include ISO9001, and industry-grade warranties are standard
Balanced, single or dual, spring-actuated cartridge seal engineered for demanding industrial fluids and rotating shaft applications. Offers directional independence, robust corrosion resistance, and excellent performance under varying conditions.
Seal faces: SiC, TC, carbon;
\nElastomers: NBR, EPDM, Viton, Aflas;
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Springs & metals: SS304/316, Hastelloy C4; optional 904L, Titanium
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The HE9T is a polished SS304 stainless steel round mechanical seal from Tirupur-based Harini Engineering, designed for industrial rotating equipment. Selling at approximately 2, 500–3, 000 per unit, it shares common design traits with the HE9 and HET50 series.
Usage: Suited for industrial pumps in chemical processing, water/wastewater, petroleum, HVAC, and general duty
\nSuitable For: Clean water, oils, mild chemicals—performance subject to elastomer choice
\nCertification: Not documented; Harini OEM products typically align with ISO-quality standards
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Warranty: Typically short term; no formal data publicly available
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The HE120 is a polished, round stainless-steel mechanical seal produced by Harini Engineering in Tirupur, India, established in 2010 . It’s designed for industrial pump applications, offering durability and a refined finish at a unit price of 1, 800–2, 500 .
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Brand Name: HE120 (Harini Engineering)
\nCondition: New and uninstalled
\nShape: Round cartridge or component-style seal
\nColor: Silver metal housing with black elastomer elements
\nFinishing: Polished stainless steel for corrosion resistance
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The AESSEAL HE91B22 (AES P07) is a high-quality, cartridge-style replacement mechanical seal for 22mm shaft “Type91” pumps (Alfa Laval / Vulcan). It features durable SiC/carbon/TC seal faces, stainless steel hardware, and versatile elastomer options, delivering reliable performance across –20°C to +150°C (up to +200°C) and pressures up to 1.2MPa. Its balanced design handles speeds ≈12m/s, making it suitable for industrial and sanitary pumps in water, chemical, and food sectors.
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The HE92B35 is a direct replacement for the Aesseal P07 seal, manufactured by Harini Engineering (Tirupur, India) for use in chemical, oil, and industrial pump applications. It’s an unbalanced, conical-spring, manual mechanical seal in a polished stainless-steel housing, designed for 35mm shafts.
Finishing: Polished stainless-steel exterior
Usage: Industrial pumps for chemical, oil, food-grade & viscous liquids
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The CURC lineup offers a robust cartridge mechanical seal platform:
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Flexible, with wide face-material choices.
\nHigh-performing, with solid ratings up to 15m/s speed, 125mm shaft, and 25bar pressure.
\nDurable, thanks to SiC face protection from impact and hydraulic balancing.
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Selfaligning stationary head, centering the seal faces to prevent angular misalignment and reduce stress on SiC faces .
\nAdvanced third-generation SiC optimization, minimizing metal-to-SiC impact at startup to prevent stress cracks .
\nBalanced hydraulics reduce heat, power consumption, and enhance face stability under pressure.
Shaft diameters: 24mm to 125mm (approx.1″–5″).
\nPressure rating: Up to2.5MPa (25bar /362psi) in general; some aftermarket versions specify up to 28bar (2.8MPa) .
\nTemperature range: −20°C to +150°C (standard); some variants support up to +220°C .
\nMaximum speed: ≤15m/s surface speed .
\nDesigned for versatile and demanding uses, including:
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Centrifugal pumps (chemical, water, oil)
\nMixers, agitators, reactors
\nAPI610 pump upgrades
\nHazardous or abrasive environments with corrosion/chemical resistance needs
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The John Crane Type 2 is a nonpusher, elastomer bellows mechanical seal renowned for its extensive OEM use and impressive performance history. Designed for applications with limited seal chamber depth—such as pumps, mixers, agitators, and compressors—this seal excels in compact installations thanks to its low-profile design. It’s offered in single, double, or balanced configurations and is particularly noted for its compact working height enabled by an outside-mounted spring
The Type2 seal is widely adopted across multiple industries due to its adaptability:
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Pumping Systems: Ideal for centrifugal, process, water, wastewater, and slurry pumping where short seal chambers are common
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The G9 and G92 are stationary-seat (stator) components used within Burgmann’s Mseries mechanical seals—e.g., M3N, M7N. These seats interface with the rotating ring mounted on the shaft. OEM alternatives (Qseals ST09/S02U, AES S02U, Roten 7K, Vulcan 8DINL) and aftermarket units (TopBon TBG9/G92) replicate the design to DIN24960 / ISO3069 / EN12576 standards.
Typical use: Component in Burgmann Mseries seals (M3N, M7N, M60/92, etc.) for centrifugal, multistage, sewage, vertical, circulating, and chemical pumps .
\nIndustries: Water treatment, petrochemical, pulp and paper, wastewater, shipbuilding, food/beverage, etc. .
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OEM alternatives: Multiple cross-brands and equivalents ensure interchangeability
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Model/Brand Name: HEMTN, by Harini Engineering (Tirupur, India) .
\nSold as a polished, round stainless steel mechanical seal.
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Primarily used in industrial equipment like pumps and mixers—designed for high durability (“unbreakable, ” “fine finish”)
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Sealing Type: Standard mechanical seal—probably single or unbalanced design, manually mounted.
\nChemical resistance: Effective for water, oils, mild chemicals, and wastewater; elastomer compatibility dictates media tolerance .
\nFace Coating: No special coatings; standard polished stainless or metal-ceramic faces.
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The HEGLF5 mechanical seal is manufactured by Harini Engineering, a Tirupur-based Indian OEM specializing in mechanical seals and industrial components since 2010 . It’s offered as a polished, round, single-coil spring mechanical seal suitable for industrial pump applications.
Color: Silver metallic housing with black sealing elements
\nShape: Round, compact, cartridge/component seal
Finishing: Polished stainless steel casing for corrosion resistance and ease of installation.
Usage: Designed for industrial pumping systems—centrifugal, process, water, wastewater, oil .
\nSuitable For: Clean water, oils, moderate chemical fluids, and sewage services.
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The HEGLF is a round, polished stainlesssteel mechanical seal—likely a nonpusher cartridge or component seal—manufactured in India (e.g., Harini Engineering) for industrial applications. It’s offered new, typically in polished silver/black finishes, intended for use across a range of pumps and rotating equipment
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Metals: SS316/304 for rust resistance.
\nSeal faces: Likely silicon carbide, tungsten carbide, or carbon/graphite—common face combos in this performance class.
\nSecondary seals: Typical elastomers include NBR, EPDM, FKM/Viton—color hints at black elastomer.
\nChemical resistance: Suits industrial fluids; stainless steel housing aids corrosion performance.
Usage: Sealing in industrial pumps—centrifugal, process, water, wastewater, slurry systems .
\nApplications: Chemical, petrochemical, water treatment, pulp & paper, food/beverage, oil & gas sectors.
\nSeal Type: Categorized as "Industrial Seals" suitable for heavy-duty use.
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HE 912 mechanical seal, for blower pump. diving pump, circulating pump, replace the mechanical seal of Burgmann M6912
The HE Burgmann M6912 is a high-performance mechanical seal designed for use in pumps and rotating equipment operating under demanding industrial conditions. As part of the well-regarded EagleBurgmann product range, the M6912 is known for its robust design, balanced configuration, and suitability for a wide variety of fluids. Replacement seals for the M6912 are available from both original manufacturers and third-party aftermarket suppliers, offering similar performance at reduced costs.
Design and ConstructionThe M6912 is a multi-spring, balanced mechanical seal with an inside-mounted configuration. It features independent direction of rotation, allowing it to be used on both clockwise and counter-clockwise rotating shafts. The seal’s balanced nature reduces face load, which in turn minimizes wear and extends service life, even under high-pressure conditions.
A key feature of the M6912 is its multiple spring design, which distributes axial forces evenly over the seal face, enhancing stability and ensuring consistent sealing performance. This configuration also improves the seal’s ability to handle shaft misalignment and vibration — a crucial factor in industrial pumping environments.
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Delivery Time : 1 or 2 days
Mr. A. Gnanasekaran (Harini Engineering)
No. 10/587 H2 Mullai Nagar, Ganapathipalayam Road, Veerapandi Post, Tirupur, Tamil Nadu - 641605, India
https://www.hariniengineering.in
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