Check Valve shall be compact diaphragm type, utilizing a flexible elastomer disc for sealing action. It shall require minimal pressure to move to the open position. The sealing disc shall be self-centering, and close in the identical position every time. Minimum backpressure required to close shall not exceed ½ psi. Suitable for installation in the vertical position for gravity-assisted sealing, Body material shall be [PVC or Polypropylene or PTFE or Kynar®PVDF]. The diaphragm shall be [Viton or EPDM or Kalrez].
All units are to be 100% individually tested at the factory. As manufactured by Plast-O-Matic Valves Inc., NJ.