What we do

Thermoplastic Compressor Valve Parts | KB Delta
High Quality Thermoplastic Compressor Valve Parts

KB Delta performs injection molding and mills high performance thermoplastic compressor valve parts in PEEK, Carbon PEEK, Mid Temperature and Nylon including the X-Type materials while observing OEM specifications. Thermoplastic has excellent mechanical and chemical resistance properties that are retained at high temperatures. KB Delta stocks a large number of styles of ported plates, radius rings and other thermoplastic components ready for same day delivery.

Our process

  • The Right Thermoplastic

    KB Delta starts with virgin plastic pellets from highly reputable sources which include Stanyl, Victrex, Solvay and DuPont. We use only the material that meets OEM standards for all molded plates, rings and other thermoplastic components. KB Delta uses only the best materials and procedures to make certain your thermoplastic compressor parts performance exceed your expectations.


  • Innovative Process

    KB Delta uses only these high quality materials in our state-of-the-art, in house injection molding machines. The material is molded to each sources specification to ensure high performance of our plates and rings. Once the blanks are molded and flatness is certified we then mill or lathe the plate or ring to its specifications. In addition to the milling process, KB Delta offers an exclusive lapping method to further ensure the flatness of your product. All products at this point are individually inspected with extensive quality control process before shipping. KB Delta takes pride in providing customers with exceptional products.

Our Capabilities

  • OEM Standards

    KB Delta only uses high quality materials in all of our components. Any ported plate, ring or other component can be customized in thickness, OD, ID, port sizes, etc. in order to meet your needs. Furthermore we can also produce your tailored component in PEEK, Carbon PEEK, MT, Nylon, etc. All products will meet or exceed OEM standards.

    KB Delta has one of the industry’s largest inventories of the following thermoplastic compressor valve parts;


  • Ported Plates
  • Radius Rings
  • Moppets
  • Buttons/Nubs
  • Bullets
  • Poppets
KB Delta Parts Performance Guarantee

All products are available in Nylon, MT, PEEK, Carbon-PEEK and X-type

Rollover each button below to see the different materials. Click for large Properties Chart

Nylon MT PEEK Carbon-PEEK
Profile Ring

Sourcing Partners


  • Metallic Plates

    KB Delta manufactures and stocks a complete range of metallic compressor valve plates and rings for the natural gas, refrigeration and P.E.T. industries.

  • Thermoplastic Plates

    Our specialized precision tooling and proprietary lapping process gives our customers the highest quality thermoplastic plates and rings in the industry.

  • Springs

    We manufacture our own springs and stock over 2 million springs for a variety of OEM spring styles, forms and materials.

  • Peripheral Valve Internals

    KB Delta offers one of the most complete lines of valve internals in the industry. All of our parts are manufactured to OEM Standards in performance and efficiency.

  • Complete Valve Repair Kits

    KB Delta offers a full line of valve repair kits for all the major reciprocating compressor manufacturers.

  • P.E.T. Compressor Parts

    KB Delta specializes in manufacturing compressor valve parts for high pressure air compressors used in the P.E.T. plastic bottle manufacturing industry.

Industries we serve

Natural Gas Industry

The processing and refining of Natural Gas into a marketable products, by separating gas into pipeline-quality natural gas and a stream of mixed natural gas liquids and the transportation of natural gas to through a series of reciprocating compressor stations and pipes, and from there to end users.

Blow Molding Industry

This industry manufactures blow molding machinery. Injection stretch blow molding process has two main different methods, a single-stage and two-stage process; these are the methods by which hollow plastic parts are formed.

Medical Technology Industry

The medical technology industry is an important part of the healthcare sector. It includes most medical devices which aid the prevention, diagnosis and treatment of diseases and illnesses. Established centers of this industry include the United States and Western Europe.