Manufacturers of pneumatic and hydraulic compressors have been able to reduce fluid leakage, noise, and extend valve life by replacing metal poppets with PEEK plastic poppets. Our PEEK molding capabilites have helped customers cost effectively incorporate plastic poppets.
Substituting PEEK plastic for metal poppets can provide the following benefits to your product:
- Wear Resistance – Wear and damage to the mating seat surface is common with the use of metal poppets. PEEK poppets offer excellent wear resistance and improve wear conditions on the mating seat surface.
- Noise reduction – Plastic poppets can reduce noise and allow for a wider range of opportunities such as medical applications.

Low Pressure Sealing Performance is critical to the functionality of this PEEK poppet. Molded with direct gating techniques, this component replaced 2 metal parts and significantly reduced re-work, offering superior performance and cost savings for our customer.

PEEK Valve Plates are a special capability at Performance Plastics. We have experience with many part configurations and PEEK material grades for valve plate applications. |

Cost Savings: For the PEEK compressor poppet shown above, our direct gating capabilities allow us to eliminate the runner system, signficantly reducing material consumption. We also mold the seat surface to a 0.0003" profile with no secondary operations. These capabilities allow Performance Plastics to provide high quality components and tremendous cost savings to our customers.

Scroll Compressor Seals are molded in a specially designed tool to meet the demanding flatness and involute profile tolerances required in this application.

Pneumatic Compressor Poppets are another area of special expertise. The thick section of the sealing surface can present challenges to the molding process. Performance Plastics has developed tooling and molding techniques which in many applications can produce a functional part "as molded" with no secondary machining operations.
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