Special Offers
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PGL-LM25-MP4-00100-SS Tompkins Pressure Gauge, 0–100 PSI, 2-1/2 in, Lower Mount
Regular price $23.37 -
80463 Midland Liquid-Filled Pressure Gauge, 0–100 PSI, 4 in, Lower Mount
Regular price $148.41 -
80205 Midland Liquid-Filled Pressure Gauge, 0–100 PSI, 2-1/2 in, Center Back Mount
Regular price $65.45 -
80064 Midland Liquid-Filled Pressure Gauge, 0–100 PSI, 2-1/2 in, Lower Mount
Regular price $57.92
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940362B Y-Pattern Swing Check Valve, 1/2 in Nominal, C x C, Cast Brass Body, Domestic
Y-Pattern Swing Check Valve, 1/2 in Nominal, Connection Type: C x C, Cast Brass Body, DomesticRegular price $132.18Regular price $132.18 -
949353 Swing Check Valve, 1/2 in Nominal, FPT, CF8M 316 Stainless Steel Body, Import
Swing Check Valve, 1/2 in Nominal, Connection Type: FPT, 200 psi, 2.45 in L Inlet to Outlet, 1.66 in Top to Inlet Center, 0.59 in Opening, CF8M 316 Stainless Steel Body, PTFE Seal, CF8M 316 Stainless...Regular price $106.26Regular price $106.26 -
940351B Y-Pattern Swing Check Valve, 3/8-in Nominal, FNPT, Bronze Body, Domestic
Y-Pattern Swing Check Valve, 3/8 in Nominal, Connection Type: FNPT, Bronze Body, Domestic, Additional Information: 3/8-18 Thread SizeRegular price $145.39Regular price $145.39 -
940352 Swing Check Valve, 1/2 in Nominal, FPT, C85700 Brass Body, Import
Swing Check Valve, 1/2 in Nominal, Connection Type: FPT, 200 psi WOG, -5 to 150 deg F, 2.09 in L Inlet to Outlet, 1.42 in Top to Inlet Center, 0.512 in Opening, C85700 Brass Body, Fiber...Regular price $59.88Regular price $59.88
Shop swing check valves for industrial piping and fluid-control systems where automatic prevention of reverse flow is required. This collection includes Midland Industries swing check valves in ductile iron, brass, bronze, and stainless steel, with threaded and flanged connection options across a wide range of sizes.
Swing Check Valves for Backflow Prevention
Swing check valves allow fluid to move in one direction while automatically closing when flow reverses. The internal disc swings away from the flow path during normal operation and returns toward the seat when flow stops or reverses, helping protect pumps, piping, and other system components from backflow.
Threaded and Flanged Swing Check Valves
Available configurations include compact threaded swing check valves for smaller piping systems as well as larger flanged ductile-iron valves for industrial installations. Selected models are also available with external lever-and-weight configurations.
Body materials include brass, bronze, ductile iron, and 316 stainless steel depending on size and application. Connection styles include FPT, FNPT, copper connections, and flanged designs.
Choosing the Right Swing Check Valve
Before ordering, verify the nominal valve size, connection type, body material, pressure rating, operating temperature, and installation requirements. Check valves should also be installed in the correct flow direction and orientation specified for the individual valve.
For additional check-valve designs, browse our complete check valves collection.