Technical Specification: Check valves (also known as Non return Valves) are Automatic valves that prevent a return or reverse flow of the process. Check valves are used for two main purposes: First, to prevent back flow, and second, to maintain pressure.
Material:
Construction: AISI 304, AISI 316 & AISI 316L.
Sizes: From 1" to 4" (25mm to 100 mm)
Standards: Unions End Connections with SMS/IDF & DIN..
Quality Tests: tests & Pressure Tests.
Design: BS 5153, DIN3352. Face to Face: BS EN 558-1, DIN3202-F6. Flange: BS EN 1092-2. Size: DN40-DN600. Working pressure: PN10/PN16. Working Temperature: -40centigrade degree - 225centigrade degree. Suitable Medium: Water, Oil, Steam. Material: ductile cast iron, Cast Steel, Stainle.
Trim : 13% Cr. / SS 304 / SS 316 / SS 304 L / SS 316 L / Alloy 20 Class 150# : Size 2” – 28” Class 300# : Size 2” – 20” Class 600# : Size 2” – 16” Class 900# : Size 2” – 10” Class 1500# : Size 2” – 8”
Why are check valves important? What is the purpose of the check valve? If you need fluid to flow through a pipe in one direction, you can't do without them. Check valves are designed with a two-way system with openings that allow fluid to pass through. After the flow has passed, the valve closes to prevent backflow. Check valves can also close automatically if downstream pressure is excessive. Common uses of check valves: Water and waste pumping systems Water pipe Sewage treatment system Heating system Fire hose Marine and naval industries Oil and gas pipelines Flush toilet device There are many different types of check valves, including rotary check, lift check, piston check, and ball check.
What Is a Check Valve? Check valves are usually installed in the pipeline to prevent backflow. A check valve is basically a one-way valve in which the flow can flow freely in one direction, but if the flow turns, the valve will be closed to protect the piping, other valves, pumps, etc. If the flow is diverted without a check valve installed, a water hammer may occur. Water hammer often occurs with extreme force and can easily damage pipes or components. Check Valve Definition A check valve is a fundamental component in fluid systems, playing a crucial role in regulating the flow of liquids or gases. This simple yet essential device prevents backflow and maintains the desired direction of fluid movement. Understanding the function and types of check valves is essential for engineers, manufacturers, and anyone involved in fluid control systems. How Does a Check Valve Work? Check valves operate on a straightforward principle: allowing fluid to flow in one direction while preventing reverse flow. The valve consists of a movable mechanism, often a disk or a flap, and a body with an inlet and an outlet. When the fluid flows in the intended direction, the mechanism opens, enabling the fluid to pass through. However, when there is a reversal in flow, the mechanism closes, preventing the fluid from going backward.
We supply all kinds of valves(and related joints, flanges, nuts) with different material from China. Our website is www.py-valve.com Pls feel free to contact if you have any questions.
Brass Check Valve ( Vertical)
Magnetic check valve was designed with magnet diaphragm, and sealed by the metal. it was used on the exhaust pipe of the compressor, for inside, it uses guide device and automatic suchtion design thant prevent reverse refrigerant flow in liquid lines and compressor discharge lines.
1. Its Material Is PVC 2. Size: 3/4" - 8"(20mm-200mm). 3. Alkali and acid resistant 4. Standard: DIN, ANSI, JIS. 5. With Socket End. 6. 100% factory tested no leak. 7. Durable and long lasting. Packing: box or poly bags, Carton.
Check valve class Full port pressure temperature rating 200 psi w.O.G. 350 f.S.P. Threaded ends conform to ansi b 2.1, bs 21, din 259/2999, stainless steel class 200 screwed cap, swing type disc, integral seat. 1/4"---4"
