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Harini Engineering
gstGST : 33AVHPG4114B1ZD 4.6/5

Our Product / Services

  1. Industrial Seals 87 Products available
  2. Shaft Seal 5 Products available
  3. Tungsten Carbide Dies 5 Products available
  4. Transmission Seal 3 Products available
  5. Bushings 2 Products available
  6. Compression Molded Rubber 2 Products available
  7. Spring Seals 2 Products available
  8. Rubber Rollers 1 Products available
  9. Butterfly Valves 1 Products available
  10. Textile Processing Machinery 1 Products available
  11. Dyeing Machine 1 Products available
  12. Heat Exchangers 1 Products available
  13. Bellow Seal 1 Products available
  14. Machinery Repairs 1 Services available
  15. Wrench 1 Products available
  16. Industrial Shafts 1 Products available
  17. Seal Rings 1 Products available
  18. Pump Seals 1 Products available
  19. Gaskets 1 Products available
  20. Metal Finger Ring 1 Products available
  21. Plastic Gaskets 1 Products available
  22. Plastic Rings 1 Products available

Compression Molded Rubber

We offer the best product range of Rubber Diaphragm and Molded Diaphragm.

Rubber Diaphragm

1,200 / Piece Get Latest Price
  • Min. Order (MOQ) 20 Piece
  • Country of Origin India
  • Number Of Flower Rubber Diaphragms
  • Feature Premium Quality, Suprior Finishing
  • Shape Round
  • Material Rubber
  • Brand GTeek, Garlock, Tri‑State, PTI, RPP, Exact Seal

Rubber diaphragms are essential in sealing, actuation, and sensing devices. Their performance depends on optimized geometry (flat, convoluted, rolling), elastomer selection (NBR, EPDM, Silicone, etc.), and manufacturing quality. Proper material choice and design ensure reliable operation in high-cycle, pressure-sensitive, and chemically aggressive environments.

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    Flat diaphragms: Simple rings or sheets excellent for low-pressure sealing or static barriers .

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    Molded (dishshaped): Pre-formed into a cup or dome for precise motion or sealing in valves and pumps .

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    Convoluted diaphragms: Feature folds for large deflections with minimal stress—ideal for pressure regulators and metering devices

    Rolling diaphragms: "Top hat"-like, allowing frictionless, long-stroke piston motion, often used in actuators and hygienic applications


    Superior sealing: Leaks are prevented even under large pressure changes
    Durable flexibility: Handles repeated flexing without tearing

    Chemical & thermal resistance: Customizable elastomers meet specific fluids and temperatures

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    Low friction & no lubrication: Especially rolling and molded types .

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    Fast response: Ideal for precise control and sensing applications

    \nApplications\n

     

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      Pumps (diaphragm pumps, peristaltic, metering)

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      Valves & regulators for fluid control systems


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      Automotive (engine control, braking, fuel systems)

Additional Information:

Packaging Details : Safely pack in Carton box

Delivery Time : 1 or 2 days

View Complete Details

Molded Diaphragm

2,200 / piece Get Latest Price
  • Min. Order (MOQ) 1 piece
  • Material Nitrile Rubber
  • Pattern Plain
  • Width based on pressure handling
  • Number Of Flower Rubber Diaphragms
  • Thickness 0.5–6 mm
  • Country of Origin India
  • Driven Type NBR
  • Application Industrial
  • Size 12 Inch
  • Part Type Buffer
  • Hardness 60-70 mm
  • Temperature Range 40 Degree C

A molded diaphragm is a flexible, precision-engineered membrane used in a wide range of mechanical and fluid control systems to isolate two environments or regulate the movement of gases and liquids. Made from elastomeric materials—often reinforced with fabric or metal inserts—molded diaphragms are designed to flex repeatedly under pressure while maintaining an airtight or liquid-tight seal.

\nFunctionality and Applications\n

Molded diaphragms serve primarily as dynamic seals or barriers. They are key components in:

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    Pumps: Like diaphragm metering pumps, air-operated double-diaphragm (AODD) pumps

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    Valves: Pressure regulators, diaphragm control valves

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    Actuators: Pneumatic and hydraulic control systems

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    Compressors: Especially where lubrication-free, low-friction sealing is needed

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    Medical and pharmaceutical equipment: Due to their sterile, non-contaminating properties when made from approved materials

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In these systems, the diaphragm moves axially, flexing back and forth in response to pressure changes or mechanical actuation, effectively controlling flow without exposing moving parts to the fluid medium.


\nAdvantages\n

 

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    Hermetic sealing: Prevents leakage between chambers, ideal for sterile or sensitive environments

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    No sliding friction: Eliminates the need for lubrication

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    Long service life: When properly designed and reinforced, they withstand millions of flexing cycles

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    Chemical compatibility: With a range of elastomers and PTFE layers available

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    Customization: Can be designed with specific shapes, inserts, thicknesses, and materials to meet unique system requirements

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Additional Information:

Packaging Details : Safely pack in carton box

Delivery Time : 1 or 2 days

View Complete Details
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