Generant manufactures a broad offering of check valves, whether your application requires ultra low cracking pressures or MAWP’s of up to 10,000 Psig. Standard products offer pressure ratings for brass to 3,000 Psi, and stainless to 4,500 Psi MAWP. Poppet types come in brass and stainless steel up to 3000 Psi MAWP. One piece check valves come with many standard seal materials and crack pressures. Adjustable styles are field adjustable or factory preset with pressure ratings to 3000 Psi MAWP.

Plastomatic supplies plastic check valves in three various series with automatic bubble-tight seal. Series CKM and CK are diaphragm operated, self sealing, and normally closed. Series CKS feature a PFA encapsulated spring design, normal closing, and zero reverse flow valve in pipe sizes of 1-1/2", 2", and 3". Series CKD are 1/4" and 1/2" valves with a flexible elastomer disk in Geon PVC, natural polypro, PTFE and Kynar PVDF.

Valcor makes series 520 ASME III excess flow and in-line check valves in ANSI classes 150 to 2500, with features like radiation resistance, stellite or elastomer seats, no leakage, pressure cracking to 1PSID, and more.