Series CKM
Self-Closing Thermoplastic Check Valve normally closed, self-sealing independent of gravity and reverse flow and installable in any position. The body material shall be [PVC or Glass Filled Polypropylene or Corzan CPVC or Kynar PVDF] and the diaphragm material shall be [EPDM or Viton]. Diaphragm shall automatically reposition itself against the seat in an identical position. Check valve shall start cracking open at 1.0-1.5 psi and will be of size [1/2" or 3/4" or 1"] with [NPTF threaded or socket] connection. A union nut will be provided for ease of inspection and removal. All units to be 100% individually tested at the factory. As manufactured by Plast-O-Matic Valves Inc., Cedar Grove, NJ.