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Check Valve

Posted at: Offers to Sell and Export | Posted on: Mon 29 Mar, 2010 10:31 am | | Antigua and Barbuda | Bahrain
 
check valve
Products Photos CatalogCheck Valve Photos Catalog



Check Valve

Check Valve a popular type of pipe valve are used to prevent flow reversal in piping systems.


Check valves are appropriate for service in horizontal or vertical piping tuns. In other words, check valve is a mechanical device that allows fluid to flow through it in only one direction. Check valves consist of two-port valves. This means that they have two openings in the body, one for fluid to enter and the other for fluid to leave. That is why they are classified as “one-directional valves”. They are available in various designs, sizes and materials and used in a wide variety of applications.

Materials used:

Brass

Copper

Cast Iron

Bronze

Ductile iron

Stainless steel

Metal alloys

Plastic

Ceramic etc.

Following the complete list of Check Valves:

+ Cast Steel Swing Check Valve

+ Butterfly Swing Check Valve

+ Cast Steel Pressure seal Swing Check Valve

+ DIN Swing Check Valve

+ Flanged End Check Valve 150Lb~600Lb

+ Forged Steel Pressure seal Swing Check Valve

+ Piston Check Valve

+ Y-Pattern Piston Check Valve

Uses of check valve:

Check valves are best suited for moderate velocity applications.

They are often part of common household items.

They work automatically.

They do not have any valve handle or stem.

They are self-activating safety valves.

They permit gases and liquids to flow in only one direction.

They prevent liquid flow from reversing.

They are used in many fluid systems like in chemical and power plants, and in many other industrial processes.

They are capable of mixing multiple gases into one gas stream.

Check valves are installed in irrigation sprinklers and drip irrigation emitters to keep the lines from draining when the system is shut off.

Working of a check valve:

There is a hinged ball or door which is placed inside the valve. With the pressure coming upstream the ball is held open. On the other hand, when the pressure increases on the downstream side, it forces the ball or door to close which stops any back flow. An important factor in check valves is the cracking pressure. This is the minimum upstream pressure at which the valve will operate. Typically the check valve is designed in such a way to specify a specific cracking pressure.



Company Contact:

No member photo
Contact Name: Sam Xu
Company Name: GZY Pipe Fitting Industries
Email: Email
Tel: 8621 3378 0199
Fax: 8621 5107 9722
Street Address: No. 273 Siping Road,
Shanghai, 200081, China
Website: http://www.pipefitting.asia
Member name: pipetubefitting
Country: China-CN China
Member Since: 29 March 2010
Total Leads: 26 pipetubefitting Import Export Business Leads
Business focus: Steel Pipe, Pipe Fitting, Flange, Valves
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