Williams manufactures swing check valves for industrial and commercial applications. Their cast steel swing configurations feature a seal-welded seat and bosses for taps and bypass. Options include alternate trims, NACE MR-01-75 and pressure seal design. Their stainless steel swing check valves feature teflon or graphite packing and gaskets with options like API 600 heavy wall and soft seats.

Kinequip provides check valves in multiple series with various body materials, O-rings, operating pressure PSIG, cracking pressure, temperature range and connections. Body materials include aluminum, brass, carbon steel, and various stainless steel types. Types of O-rings includes Buna N, Viton, ethylene, propylene, flourosilicone, Kalrez, neoprene, Teflon, and Viton.

Matco-Norca distributes an extensive selection of check valves of various styles, including brass and PVC. Brass styles include threaded and seat brass, neoprene seat brass, bronze, brass inline, and brass foot valves. PVC types include PVC inline, PVC inline with SS spring, and plastic sump pump designs.

Sure Flow Equipment offers check valves, including double door, swing, silent and foot styles. The double door or dual disc check valves are offered in flanged, wafer, lug (drilled or threaded), butt weld and hub end styles in a size range from 2 to 72 inches. Silent designs offered include cast iron, cast stainless steel wafer, and cast iron globe.

Kennedy makes swing check valves in conformance with A.W.W.A. C508, featuring double bronze side plug construction, reinforced ANSI B 16.1/125 flanges, and stainless steel hinge pin, with optional tapped bosses, lever-and-spring/lever-and-weight, and more.

Delta Pacific manufactures dual-plate, wafer check valves suitable for installation between ASME B16.5 flanges. Six different classes are available.