835 Industrial Hwy | Cinnaminson, NJ 08077



Making the highest engineered
quality products since 1955

Onyx Valve Company is located in Cinnaminson, NJ.  Our 30,000 square foot facility is comprised of state of the art machining and rubber molding equipment. We are only 19 minutes from Center City, Philadelphia.

Sales, Engineering, Administrative functions, and all manufacturing are located at one location to facilitate accurate communication and quick response to our customers’ needs.

Our fabrication facilities consist of three departments:

  1. Assembly and testing of Pinch Valves, Check Valves, and Pressure Sensors.
  2. Rubber molding.  Every Onyx valve and duckbill sleeve is designed, wrapped, and vulcanized in-house under our strict quality control procedures to insure consistent quality to our customers.  Our rubber department utilizes only the highest grade of natural and synthetic rubbers to assure maximum sleeve life in every application.  Our wrappers are trained to maintain close tolerances, and follow specific, well documented wrapping procedures that have been tested and perfected over years of service.
  3. Every valve and isolator ring is machined in-house in our modern state-of-the-art machine shop to insure consistently high quality standards and fast response times for our customers.


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