Rubber and PTFE Diaphragms by Western Rubbers

Diaphragms function as flexible barriers between two chambers, preventing the movement of fluids or contaminants from one chamber to another. They may be static or dynamic rubber seals. Western Rubbers is a leading manufacturer of rubber/PTFE diaphragms with a global distribution network. Diaphragms are used in a range of industries across the globe in assemblies of pumps, valves and actuators to regulate the flow and transfer of fluids. Generally,diaphragms are made of reinforcement layer sandwiched between two layers of rubber. Other than rubber, Western Rubbers’ has a hoslitic in-house facility for fabricating PTFE diaphragms as well. .

Why Us?

  • In-house tooling and compounding
    -All dies are custom fabricated in-house
    -After undertaking extensive R&D, Western Rubbers now formulates and mixes all compounds in-house
    -Very quick order turnaround time
  • Customer satisfaction
    -Our experienced sales engineers offer complete guidance throughout the process from prototyping to dispatch
    -Fast turnaround on quotations, prototypes, repeat orders, etc.
    -All parts are 100% quality tested


  • Extensive product capabilities
    -Sizes range from ¼” to 55” diameter
    -Specific elastomers can be used to withstand extremes of temperatures (-100C to +300C)
    -Depending upon the application fabric reinforcements are used that can withstand pressures up to 1000 psi (68 bar)
  • OEM replacement parts
    -We manufacture OEM replacement parts (diaphragms) for Wilden, Warren Rupp., Versamatic, Saunders, George Fisher, Blagdon and Samson Controls.
    -Our superior grade selection and complete in-house processing ensure that our diaphragms have the best flex life in the industry.
    -With the best quality, our diaphragms are reasonably priced compared to OEM and also offer significant cost reduction on bulk purchasing.


By Construction
By Application
By Material


A) industries

  • Aerospace
    Aerospace offers an extensive market for diaphragms. Western Rubbers’ diaphragms are found in. several aerospace applications like environmental control systems, auto pilot controls, turbine engines, hydraulics, fuel cells and many such related applications. Our clients trust us to offer them effective solutions to some of the most complex applications.
  • Process Regulators
  • Water Management Systems
  • Industrial Applications

B) Direct application

Some of the direct applications of diaphragms in pumps, valve and actuators include-

  • Process Control Valves
  • Air Pressure Regulators
  • Displacement Pumps
  • Distributor Vacuum Advance Mechanisms
  • Irrigation Valves
  • Aircraft
  • Environmental Controls
  • Belt Guide Actuators
  • Automotive Locking Hubs
  • Truck Brake Actuators
  • Automotive Emission Controls
  • Truck Brake Actuators
  • Automotive Emission Controls
  • Geothermal Pumps
  • Automatic Door Locks
  • Liquid Dispensing Equipment
  • Valve Positioners
  • Automatic Choke Controls
  • Pneumatic Relays
  • Dancer Roll Actuators
  • Tank Truck Valves
  • Water Conditioning Valves
  • Domestic Hot Water Regulators
  • Waste Gate Actuators
  • Industrial Brakes
  • Expansion Chambers
  • Vacuum Switches
  • Pressure Transducers
  • Vacuum Regulators
  • Linear Actuators
  • Flush Valves
  • Pressure Switches
  • Flow Control Valves
  • Fire Sprinkler Alarms
  • Automatic Transmission Modulators
  • LP Gas Regulators

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