Get Your Backflow in Check
When a check valve is needed to prevent backflow,
Has a complete line-up, including the U-ideal check valve with self-closing disc, horizontal swing, sliding disc, silent check and Y pattern. Ask us how to spec the right check valve, or get catalogs, chemical resistance guides and submittals. You're always guaranteed of superior quality, service expertise and the u-ideal warranty.
Solder, threaded, flanged, wafer, grooved end connections
End connections for Class 125, 150, 200, 250, 300
Bronze, ductile iron, iron body, bronze mounted trim (IBBM), and corrosion resistant materials
Cast Ductile and Alloy Iron Check Valves for use in commercial and industrial applications. Services include: Hot and cold water, HVAC, steam, oil and gas, limited chemical, petroleum refining and production.

Check valve(back pressure valve, swing valve, one-way valve): A valve that closes by fluid pressure to prevent return flow (Also called nonreturn valve), A check valve is a mechanical valve that only permits water flow in one direction. There must install check valve where don't allow fluid flow back such as compressor or pump outlet.

For low pressure medium and nominal diameter <DN50mm, select Butterfly swing check valve, vertical lift check valve or diaphragm check valve.
If 1200mm>DN>200mm, select butterfly check valve or diaphragm.
If require pipe small water hammer or no water hammer, better select slow-close type swing check valve and low-close butterfly check valve.

check valve(back pressure valve, swing valve, one-way valve): a valve that closes by fluid pressure to prevent return flow (Also called nonreturn valve),A check valve is a mechanical valve that only permits water flow in one direction. There must install check valve where don't allow fluid flow back such as compressor or pump outlet.
For low pressure medium and nominal diameter <DN50mm, select Butterfly swing check valve, vertical lift check valve or diaphragm check valve. If 1200mm>DN>200mm, select butterfly check valve or diaphragm. If require pipe small water hammer or no water hammer, better select slow-close type swing check valve and low-close butterfly check valve.
Types	Max. DN	Max. PN	Temperature	Installation	Features and Application	sealing	resistance
Vertical lift check valve	50	6.4	-29~550oC	Horizontal pipe	Water, steam, oil	good	high
Horizontal lift check valve	50	6.4	-29~551oC	Horizontal / vertical  pipe	Water, steam, oil	good	high
Foot Valve bottom valve				vertical pipe	Vertical pipe at Pump inlet and fluid flow from bottom to top.
Swing Check Valves	>2000mm	42MPa	-196~800 oC	Any direction (Horizontal, vertical,  slant^)	Water, Seam, air, corrosive fluid, oil, food, medicines ect. Any fluid.	worse	low
Butterfly Swing Check Valve	>2000mm	6.4MPa	-196~540oC	Any difection (Horizontal, vertical,  slant^)	low pressure big piping, suitable low speed flow medium	worse	low
Diaphragm check valve	>2000mm	1.6MPa	-20~120oC	tap water pipeline	Can relieve water hammer.
Ball check valve	200~1200mm	42MPa	-196~540oC	Horizontal / vertical  pipe	Water, steam, oil, Nitric acid,  urea and strong oxidizing medium,can relieve water hammer. full tube access.	good	low