Description

CHECK VALVE

Check valves are designed to prevent the reversal of flow in a piping system. These valves are activated by the flowing material in the pipeline. The pressure of the fluid passing through the system opens the valve, while any reversal of flow will close the valve. Closure is accomplished by the weight of the check mechanism, by back pressure, by a spring, or by a combination of these means. The general types of check valves are swing, tilting-disk, piston, butterfly, and stop.

Application: Check valves are used in many fluid systems such as those in chemical and power plants, and in many other industrial processes.

****1

ANSI JIS Swing Check Valve

Size:2″~*4″

Pressure:**0Lb~**0Lb

Material:Carbon Steel, Stainless Steel

A swing check valve is normally recommended for use in systems employing gate valves because Swing Check Valve of the low pressure drop across the valve. Swing check valves are available in either Y-pattern or straight body design. Seating is either metal-to- metal or metal seat to composition disk. Composition disks are usually recommended for services where dirt or other particles may be present in the fluid, where noise is objectionable, or where positive shutoff is required.
Shanghai Teyi valve manufacturing co., ltd for many years has been dedicated to the research and production of fluid process control. Our company is *3,**0 square feet in size with more than **0 employees, and has also been certified of ISO***1, ISO****0, ISO****1, TS, API 6D, CE, etc.As a professional manufacturer of valves and pipe fittings, our company has earned an excellent reputation and becomes a member of Shanghai Chamber of Commerce for Import and Export (SHCCIE) by providing good quality products and excellent service.

Our main products come in various sizes and pressure levels which include gate valve, globe valve, ball valve, butterfly valve, check valve, regulating valve, instrument valve, etc. Our products are manufactured in compliance with GB, JB, API, DIN, JIS, ANSI, NF, BS, etc and they are made of stainless steel, carbon steel, alloy steel as well as other specialized materials. Within China we own more than **0 distribution shops across the entire country, and our products have been exported to Russia, Iran, Indonesia, America, Saudi Arabia, Vietnam and Africa with great recognition.

We have experienced RD teams and refined production equipment in house, and with refined production techniques and inspection facilities, whether it’s the procurement of the raw materials, OQC of the final products, reference standards have been widely adopted to ensure the safety and reliability of the products. Our products have been widely used in industry such as petroleum and natural gas, chemical, paper, shipbuilding, metallurgy, environmental protection, power plant, food, pharmaceutical, water, etc.