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Distillation Units
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2 Products availableCartridge Filter
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Colpack has, over the years, become generally accepted as the most efficient packing for distillation towers operating at reduced pressure. It is ideal for the separation of heat-sensitive and close-boiling fractions, where many theoretical stages and low pressure drop are required. Colpack offers a precise solution to this challenge.
ConstructionColpacks are fabricated by knitting bunched fine wires of filaments (0.01 mm), which are then crimped and wound into rolls of the desired column diameter.
Any material that can be drawn into fine wire or filament may be used, but SS 304 and SS 316 are commonly stocked. Higher alloys are available upon request.
Supplied as 150 mm high packings, matching the nominal bore of the column.
Requires only simple support—typically two bars at right angles or parallel bars (6-inch spacing) for large towers.
Packed from the top, ensuring the tower is free of internal projections.
Push gently down to the support grid using a wooden disc mounted on a pole to prevent damage.
Alternate crimp directions should be maintained for optimal performance.
Easily retrofitted to existing columns by replacing random packing, leading to:
Improved product quality
Higher production capacity
Lower pressure drop
Low bulk density (432 kg/m³) results in:
Lighter columns
Reduced structural foundation needs
Lower insulation, piping, and installation costs
Possible column diameter reduction
High voidage allows free flow of liquid and vapor, leading to:
Extremely low pressure drop per unit height
High surface area (1780 m²/m³) enables:
Intimate vapor-liquid contact
Lower HETP values
HETP < 15 cm over the entire velocity range
Flooding velocity is 2 to 2.5 times higher than conventional packings, allowing:
Smaller column diameters or
Increased throughput
Vacuum distillation, where pressure drop is critical and high separation efficiency is needed.
Thermal-sensitive component separation.
Very low superficial velocities (as low as 0.1 cm/sec).
Pollution control, especially in the biological oxidation of liquid effluents.
Manufacture of organic compounds.
Outperforms conventional packings in both performance and reliability.
Shreewire Mist Eliminator is a static, in-line separation device fabricated in pad form from symmetrical interlocking loops of knitted metal wire or plastic monofilaments. With high free volume and a large impingement surface area, the mist eliminator ensures separation efficiency of up to 99% for particles as small as 5 microns, while maintaining a low pressure drop around 25 mm WC.
It can be installed in new or existing process vessels—such as evaporators, scrubbers, and pressure vessels—without the need for special housing. It is virtually maintenance-free, requiring only occasional cleaning in fouling service.
How Does the Shreewire Mist Eliminator Work?As vapor carrying entrained liquid droplets or mist passes through the Shreewire Mist Eliminator, the vapor moves freely through the layered mesh. The droplets, having greater inertia, impact the wire surface and are temporarily held. As they collect and coalesce, they grow larger and eventually drain back into the system. The result is an overhead vapor stream that is nearly free of liquid.
Efficiency and PerformanceRemoves droplets down to 5 microns
Separation efficiency up to 99%
Available in multiple mesh styles and materials
Pressure drop typically less than 25 mm WC; around 5 mm WC in vacuum service
Special high-efficiency designs available upon request
Shreewire Mist Eliminators are suitable for a wide range of industrial applications, including:
Distillation Equipment
Knockout Drums
Scrubbers
Absorbers
Evaporators
Vacuum Towers
Steam Drums
Strippers and Regenerators
The selection and sizing of a Shreewire Mist Eliminator depends on several factors:
Gas or vapor flow rate and entrained liquid content
Droplet size distribution and separation efficiency required
Allowable design velocity
Physical and chemical properties of the gas and liquid phases
Material of construction
The mist eliminator consists of a wire mesh pad sandwiched between a top hold-down grid and a bottom support grid. These grids are specially designed with a high percentage of open area to minimize pressure drop.
Key installation requirements:
The pad is slightly oversized to ensure a tight fit within the vessel
A 50 to 75 mm wide annular support ring, drilled with 3 to 6 mm diameter holes, should be welded to the vessel wall
The pad and grid assembly is secured using 2 mm diameter tie wires or spacer pipes with appropriate bolts and fasteners
Intermediate support beams are recommended for spans larger than 1800–2000 mm
A **demister pad** (also known as a **mesh mist eliminator**) is a wire mesh device used to remove liquid droplets from gas or vapor streams. It works by causing mist-laden gas to pass through a dense mesh of metal or plastic wires, where the droplets collide, coalesce, and drain away due to gravity. Demister pads are widely used in **separators, scrubbers, and process columns** for efficient mist removal with **low pressure drop**, typically capturing droplets ≥3–5 microns.
Additional Information:
Payment Terms :
Packaging Details : 50% ADVANCE + 50% AGAINST PROFORMA INVOICE BEFORE DISPATCH
Delivery Time : 1-2 WEEKS
A **vane type mist eliminator** is a gas-liquid separation device designed to remove entrained liquid droplets from a gas stream. It consists of a series of angled or curved vanes that force the gas to change direction. As the gas flows through the vanes, liquid droplets collide with the surfaces, coalesce, and drain away, allowing clean gas to exit. It offers **high efficiency** for droplets ≥8–10 microns with **low pressure drop**, making it ideal for use in **separators, scrubbers, and process vessels**.
Additional Information:
Payment Terms :
Packaging Details : 50% ADVANCE + 50% AGAINST PI BEFORE DISPATCH
Delivery Time : 1-2 WEEKS
Shreewire’s Knitted Mesh Products
Shreewire produces a high-quality, versatile knitted mesh using a wide range of materials, offering a high degree of creativity and expertise. Our skilled design and development team ensures that the correct characteristics and specifications are chosen for each individual application. Customizable features include wire diameter (0.08 to 0.5mm), as well as the number, shape, and size of the stitch.
The majority of materials we use are 100% recyclable, addressing growing global concerns across various industries. With access to a vast selection of raw materials, we offer expert guidance to ensure optimum performance and long life expectancy in nearly any application.
Materials Readily Available:
Stainless Steel Grades: AISI 302, 304, 316L, 321, 309, 314, 310S
Materials Available on Demand:
Super Alloys: Inconel 601, Incoloy DS, Hastelloy, Carpenter 20, Monel
Others: Aluminium, Copper, Brass, Mild Steel (Plain and Galvanized), Polypropylene
And other continuous filament materials supplied as wire or yarn
Applications:
Knitted Mesh Rolls
Demister Mist Eliminators
Clear-mesh
Anti-vandal Mesh
Grease Filters and Framed Filters
Anti-Vibration Mounts
Heavy-Duty Seals
RFI / EMI Shielding
Vibration and Shock Absorption
Air and Liquid Filtration
Noise Suppression
Heat Transfer and Insulation
Mist Elimination and Process Separation
Flame Arrestors
Engine Catalysts
Knitted Wire Mesh Forms:
Filters
Oil and Air Breather Elements
Catalytic Converter Mesh
Insulator Blanket Mesh
Mufflers and Silencers
Copper Mesh Oil-Bath Separators
Mist Elimination Pads
Ground Wire Mesh
Product Overview
Shreewire’s Vane Type Mist Eliminators are designed for high-performance separation of liquid particles from gas streams in process systems. These Chevron-type vane packs consist of a series of specially engineered vanes with defined geometry that cause directional changes in the gas flow. The liquid droplets, having higher inertia than the gas molecules, impact the vane surfaces, coalesce, and drain away due to gravity.
Operating Principle
As the gas stream passes through the vane pack, the liquid droplets are forced to change direction multiple times. Due to their inertia, the droplets contact and wet the vane surfaces, particularly in the corrugations. As they accumulate and grow in size, gravity causes them to fall out of the gas stream, effectively removing them before the gas exits the separator.
Efficiency
Capable of removing over 99.5% of liquid droplets
Effective for particles ≥ 20 µm and 8 µm, depending on configuration
High separation efficiency even at high gas velocities and liquid loads
Material of Construction (MOC)
SS316 / SS314 (other materials available upon request)
Size & Configuration
Custom-built as per project specifications or quotation
Available in multiple vane geometries depending on service conditions
Vane Pack Type
Chevron Type Vane Pack
Specially designed vanes with precise flow path geometry
Suitable for horizontal or vertical flow
Key Advantages
Suitable for high velocity gas streams
Handles high liquid loading and high liquid viscosity
Resistant to fouling and clogging
Long corrosion life due to high-grade stainless steel
Low pressure drop for energy-efficient operation
Tee Strainer is fabricated from pipes & plates or standard equal tee & flanges. Filter elements are made of stainless steel perforated sheet or wire mesh supported by perforated sheet. In tee type strainer, a structural skeleton made of flats and round bar is often used to support the wire mesh. Tee Type Strainers are a low-cost solution to large nominal bore straining requirements. They feature either bolted covers or quick-opening covers based on application suitability.
Tee-type strainers are designed to remove particles from pipelines where a compact and accessible strainer is required for the protection of fluid handling systems. The use of custom-assembled micron meshes and screens ensures optimal functionality standards.
Specifications:
Pressure, Temperature Rating: 50 kg/cm², 300°C
MOC: CS / SS 304 / SS 316 / PP
Size and Range: 80 NB to 1000 NB and mesh from 10 to 6000 microns
Process Connection: Any International Standard
The filter unit comprises of two filter chambers which are connected to each other by means of three-way ball valves. The liquid to be filtered enters through the inlet connection and passes through the specially engineered wedge wire element, with the flow being outside to inside. Solids larger than the selected micron spacing are either retained on the outside of the filter element or drop into the filter chamber sump. Duplex strainers are designed for use in fluid handling systems where the flow can’t be shut down for filter cleaning. The duplex filters ensure complete removal of any type of foreign particles from the system.
Principle
When one basket becomes full, the flow is switched to the other basket. The first basket is removed, cleaned, and replaced.
Working
The duplex strainer system usually consists of two separate strainer baskets housed in the unit. The system also contains a valve handle placed between the two baskets to divert the flow of liquid to one strainer while the other is being cleaned.
Operations
Basket strainers feature top removal of the filter screen. The screen is in the form of a basket with a lifting handle, so that all particulate captured and retained by the screen can be easily removed for disposal. They are intended for applications where large amounts of solid particulate are expected and where the clean-out will be frequent. Where fine filtration is required, the basket is replaced by cartridge filters. During cartridge cleaning or change-out, the housing can be cleaned by opening the lower plug.
Applications
Where continuous operation is required and the line cannot be shut down for cleaning, duplex basket strainers can be used. Suitable for applications where continuous filtration is absolutely necessary.
Advantages
Superior filtration area
Can be custom built
Continuous usage during basket change-out
Debris collects away from the process stream
A **demister pad** (also known as a **mesh mist eliminator**) is a wire mesh device used to remove liquid droplets from gas or vapor streams. It works by causing mist-laden gas to pass through a dense mesh of metal or plastic wires, where the droplets collide, coalesce, and drain away due to gravity. Demister pads are widely used in **separators, scrubbers, and process columns** for efficient mist removal with **low pressure drop**, typically capturing droplets ≥3–5 microns.
Additional Information:
Payment Terms :
Packaging Details : 50% ADVANCE + 50% AGAINST PI BEFORE DISPATCH
Delivery Time : 1-2 WEEKS
Model Type – 1: Blade Design Mixer
Mixer Type: SS – 316 Material
Viscosity Range: Less than 1500 cps
Reynolds Number: Greater than 500
Size Range: ½" to 14"
Application: Mixing products into water or water-like fluids
SW-SMx-01: Used for low viscosity. The faster the fluid moves, the faster the mixing. Ideal for mixing products into water or water-like fluids.
Model Type – 2: Helical Design Mixer
Model: SW-SMx-02
Application: Used for high viscosity blending and when the fluid moves more slowly through the mixer
Material: SS – 316
Viscosity Range: Greater than 1500 cps
Reynolds Number: Less than 500
Size Range: ½" to 14"
Application Areas: Epoxy blending, fruits into yogurt, cookies into ice cream, thermal homogeneity, slurry suspension, folding/stripping
Customer Benefits
Excellent mixing and dispersing, even with widely differing fluid viscosities
Compact designs
Reduced product degradation due to very short residence time
Mixing of sensitive products under minimal shear stress
No deposits and blockages due to excellent cross-mixing
Advantages
High level of mixing efficiency – formation of byproducts is dramatically reduced
Low energy consumption
Easy installation
Available in all standard pipe sizes, and for open channel designs, available in any size with no upper limit
Industries Served
Pulp and Paper Processing
Pharmaceuticals
Oil Refining
Petrochemicals
Food Processing
Natural Gas Processing
Water and Waste Water Treatment
Design Calculations
Reynolds Number Formula:
Re = Dvρ/µ
Number of Elements Required:
Re < 10 → 24–36 elements
10 < Re < 100 → 18 elements
100 < Re < 1000 → 12 elements
1000 < Re < 10000 → 6 elements
Re > 10000 → 4 elements
Pressure Drop Calculation
ΔP = 3.061 × 10 × f × n × smxpx(u)² × E
G Value Calculation
G = v(hf × g × ρ / μt)
Pipe Diameter (D in meters)
D = √(4Q / πv)
Instrument Gas Filter – Key Features
The filter consists of a housing with a suitably designed element. Vessel sizing is based on the required filtration area, flow rate, and maximum allowable pressure drop.
Selection of the element design depends on multiple parameters like viscosity, density, and degree of filtration.
The Instrument Gas Filter uses a simple cylindrical cartridge that rests inside the housing.
Cartridges are fixed to the candle holding plate via threading provided on the top cap of the cartridge.
Inline or offline connections are provided based on the process requirements.
Pressure gauges can be installed at inlet/outlet nozzles to monitor pressure drop across the system.
Vessels are fabricated in accordance with ASME Section VIII, Division 1, and include lifting lugs, handles, legs, and other accessories as per the required mechanical and process conditions.
Cartridge filters are available for liquid applications up to 0.1 microns and for gas applications up to 0.01 microns.
Cartridge materials include cotton, cellulose, fiberglass, polyester, borosilicate glass fiber, ceramic, sintered stainless steel, and bronze.
Filter housings are offered in Carbon Steel, Stainless Steel, Alloy Steel, Polypropylene, PFR, and other plastics as per customer requirements.
All fabrication follows ASME Section VIII standards for quality and safety.
Electrostatically charged Zeta Potential Cartridges are available for specialized applications like cobalt removal from heavy water in nuclear power plants.
Y Type Strainers
We offer Y Type Strainers with both flanged ends and screwed ends, featuring durable stainless steel (SS) screens for effective filtration. These strainers are designed for high performance and extended service life, even under extreme temperature and pressure conditions. Easy to install and maintain, they provide reliable protection against foreign matter in pipelines.
Built with precision and durability, our Y Type Strainers offer excellent adaptability and consistent functionality. The SS filter elements, made of perforated sheet and wire mesh, are tailored to meet specific customer requirements and are easily removable for cleaning or replacement.
Shreewire Stripping Columns are engineered systems designed for the efficient removal of volatile organic compounds (VOCs), such as benzene, toluene, xylene, and low-boiling solvents like methanol and ethanol from water streams. These columns are vital in industries requiring liquid purification or solvent recovery, including chemical, petrochemical, oil & gas, and wastewater treatment sectors.
Each column is configured based on process requirements and fluid composition, and is available in two main designs: Tray Columns and Packed Columns.
Tray Column DesignTray columns (also known as plate columns) are among the most widely used mass transfer devices in industrial separation. The number of trays and stages is precisely determined based on required separation efficiency and product purity.
Types of Trays Offered:
Sieve Tray
Bubble Cap Tray
Moving Valve Tray
Fixed Valve Tray
Key Benefits:
Modular construction for easier maintenance
Can be partially replaced with packing to debottleneck capacity
Designed for excellent vapor-liquid contact
Material of Construction (MOC):
All Stainless Steel (SS304 / SS316)
Packed columns provide high surface area for enhanced vapor-liquid interaction, resulting in greater separation efficiency per unit height compared to tray columns. Ideal for processes requiring compact column design and low-pressure drop.
Internal Components:
Mist Eliminator (Demister Pad)
Knitted wire mesh pad ensures 99%+ droplet separation down to 5 microns
Low-pressure drop (approx. 25 mm WC)
Maintenance-free and easy to install
Liquid Distributor
Ensures uniform liquid distribution across the packed bed
Prevents maldistribution, flooding, and inefficient mass transfer
Bed Limiter
Prevents displacement or fluidization of packing under high vapor load
Mounted on top of the packing layer
Packing Options
Random Packing: Metal/Plastic types (e.g., Raschig rings, Pall rings)
Maximizes surface-to-volume ratio, minimizes pressure drop
Structured Packing: Corrugated, honeycomb-type shapes
Precisely engineered to allow maximum surface area with low resistance
Suitable for high-efficiency, low-pressure operations
Packing Support Plate
Supports the weight of the packed bed
Designed with large open area to maintain uniform liquid and vapor flow
Prevents flooding and ensures mechanical integrity
Material of Construction (MOC):
All Stainless Steel (SS304 / SS316)
PP (Polypropylene) – for specific chemical resistance needs
Removal of volatile hydrocarbons and chlorinated solvents
Water purification and effluent treatment
Solvent recovery systems
Chemical process stripping and regeneration units
Tailored design with tray or packed configuration
High VOC removal efficiency
Engineered internals for optimal gas-liquid contact
Low maintenance and robust construction
Available in wide material choices for corrosive or high-temperature services
Mrs. Meenal Tare (Shreewire Process Technology Private Limited)
C-2, 121, Jai Jalaram Industrial Estate, Pimplas,, Bhiwandi, Thane, Maharashtra - 421302
https://www.shreewireprocesstechnology.co.in
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