Custom rubber diaphragms

At TRP Polymer Solutions, we manufacture custom-designed rubber diaphragms, specifically for your application. We are fully equipped to develop a precise rubber diaphragm for your particular industry niche. 

Whether you need an air-operated, small chemical dosing and dispensing, or microfluidic rubber diaphragm, TRP Polymer Solutions has the expertise, experience and technology to provide the ideal rubber diaphragm solution for you.

Rubber diaphragms from TRP Polymer Solutions

TRP Polymer Solutions offers a range of specialist rubber and PTFE materials to develop rubber diaphragms that exhibit enhanced flexibility, extended service, temperature resistance, chemical resistance and reduced permeability. 

Not only do you receive unique designs, but all of our rubber diaphragms are also engineered to deliver high abrasion resistance. Perfect for industries that work with abrasive materials, such as slurry.

As part of the rubber diaphragm manufacturing process, our experts offer advice on material selection specifically for your application. This is to ensure that the media you are pumping and the volumes that you pump are fully supported by the correc rubber compound.

Our selection of rubber diaphragms includes:

  • PTFE rubber bonded diaphragms
  • Fabric reinforced diaphragms
  • Thin walled diaphragms
  • Demand valve diaphragms for BA sets

PTFE rubber bonded diaphragms

PTFE is known for its high chemical resistance and low friction. For this reason, it is a highly functional material for use in many diaphragm applications, including hygienic and aggressive chemicals.

Fabric reinforced diaphragms

We can develop technically specific rubber diaphragms, such as fabric reinforced diaphragms. The purpose of fabric reinforced rubber diaphragms is to improve the flex life of the diaphragm.

Dual layering of fabric and rubber ensures that the diaphragm is supported when it comes into contact with larger particles and higher pressures. The reinforcement of the fabric layer offers higher durability levels.

Thin-walled rubber diaphragms

Thin-walled rubber diaphragms from TRP Polymer Solutions are used in applications where wall thickness is critical in ensuring consistent flexibility, for example, metrology probes on CNC machines. It is essential that these FKM diaphragms are manufactured to the tightest tolerances. The material formulation is also critical to ensure chemical resistance of the rubber diaphragm, to protect the equipment from the aggressive cutting fluids used during CNC machining.

Demand valve diaphragms

TRP also manufactures low temperature silicone diaphragms for use in demand valves for breathing apparatus (SCBA). The function of the demand valve is to allow a regulated follow of oxygen to the user. They operate at very low temperatures, as low as -80°c, and the rubber must remain flexible to ensure no reduction in performance of the diaphragm.

Our technical team can advise on selection of the best materials for demanding applications like these, which may include rubber with ultra-low temperature resistance.

Rubber diaphragm manufacturers

As experienced rubber diaphragm manufacturers, we can provide you with all the knowledge you require to assist you in designing a product that will function effectively in your application. Dependant on your industry, we can advise you on the development and specification of your rubber diaphragm.

TRP gives unique solutions to many diaphragm problems, such as the combination of PTFE to rubber, and FFKM to FKM. The ability to produce a two-piece composite FFKM / FKM (Perfluoroelastomer to Fluoroelastomer) rubber diaphragm gives you the almost universal chemical resistance of FFKM, at the cost-effective price of FKM. As a team, we strive to produce the highest quality, most effective rubber diaphragms.

We are rubber diaphragm manufacturers that pride ourselves on rigorous in-house testing, to create a solution for your application, where full traceability and high quality is demanded. For more information, or to discuss your options with one of our technical team, call TRP Polymer Solutions today on +44 (0)1432 268899 or email us at

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Custom Moulded Rubber Solutions