Established in 1985,Didtek Valve Group is a Professional Supplier of Industrial valves for major...
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Didtek Check Valve are used to allow flow through a pipeline in one direction and prevent flow (check) from returning in the opposite direction. Check valves are commonly installed on the discharge side of the pump. The most important role of a check valve is to act as the automatic shut off valve when the pump stops to prevent draining of the system.
RTJ Pressure Seal CF8M Swing Check Valve, Size:6'', Material: CN7M, Connection: Flange, Check Valve, BS1868, Steel Valves, ASME B16.34
RTJ Pressure Seal CF8M Swing Check Valve, Size: -8'', Material: CF8M, Category: Pressure sealing, Connection: Flange, Check Valve, BS1868, Steel Valves, ASME B16.34
Cryogenic Stainless Steel CF8M Non Return Valve For Russia Project: -3'', Material: CF8M, Category: Cryogen, Connection: Flange, Check Valve, BS1868, Steel Valves, ASME B16.34
High Pressure 2500LB PSB Butt Welded Tilting Disc Check Valve, Material: WCB WC9, Category: Pressure sealing, Connection: BW, Check Valve, BS1868, Steel Valves, ASME B16.34
3 INCH 2500LB PSB Swing Check Valve, Check Valve, BS1868, Steel Valves, ASME B16.34, Face to face ASME B16.10
Cast Steel WCB 8'' 600LB Ring Joint Swing Check Valve, Check Valve, BS1868, Steel Valves, ASME B16.34, Face to face ASME B16.10
High Pressure 3inch 1500lLB Check Valve INOX CF8M, Check Valve, BS1868, Steel Valves, ASME B16.34, Face to face ASME B16.10
2Inch WCB Flanged Industrial Swing Check Valve,Check Valve,BS1868, Steel Valves, ASME B16.34, Face to face ASME B16.10
DIN Swing Check Valve DN400 PN63, Design DIN 3352, Face to face EN 558-1, End Flanges EN 1092-1, Butt Welding ends EN 12627, Inspection and test EN 12266-1
Tilting Disc Check Valves are manufactured to the latest edition of BS1868 and tested to API 598
GS-C25 Lift Check Valves are manufactured to the latest edition of EN 13709 and tested to EN 12266-1.
DIN Lift Check Valve, Design EN 13709, Face to face EN 558-1, End Flanges EN 1092-1, Butt Welding ends EN 12627
Didtek Check Valve, also known as a non-return or one-way valve, is a mechanical device that allows a gas or liquid to flow freely in one direction while preventing reverse flow in the opposite direction. The direction in which the fluid or gas can flow is called the free flow direction; the direction in which fluid is prevented from flowing is called the checked or non-return direction.
When the pressure behind the valve is higher than the pressure in front of it (a condition known as the cracking pressure), the valve opens and permits the flow of the contained fluid in the chosen direction. When the pressure behind the valve lessens, the valve closes to prevent what has already passed through it from flowing backward in the wrong direction.
You must think about the needs of your system in order to choose the right type of check valve. You also need to think about the size and other specs for the pipes or systems.
