Forged Steel Swing type/Lift type Check Valve 150LB~2500LB
RST Valve company is a industry valves manufacturer, including Thread & Flange Ball Valves, Gate Valves, Globe Valves, Check Valves, Y Strainers in stainless steel, carbon steel, cast steel, forged steel and alloy steel.
Check Valves mainly has Thread ends Swing Check Valve, Stainless Steel Vertical type Check Valve, Screwed ends CF8M 200PSI Y type Check Valve, Stainless Steel Wafer type Check Valve, Single Disc Wafer type Check Valve, Single plate Lift type Wafer Check Valve, Dual Plate Wafer Type Check Valve, Cast Steel Flange ends Swing Check Valve, Stainless Steel Flange ends Lift type Check Valve, API Flange ends 150LB Swing Check Valve, DIN Standard Lift type Flange Check Valve.
A check valve, clack valve, non-return valve or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, check valves generally are very small, simple, or inexpensive. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal.



Constructions:
BODY. The body is forged steel and designed to the basic dimensional requirements of the applicable specifications such as API 602 and ASME B16.34. The body is available in both the full or conventional port design. It is also available in either T-Pattern or Y-Pattern configurations.
COVER. The cover is forged steel and designed to the basic dimensional requirements of the applicable specifications such as API 602 and ASME B16.34.
BODY-COVER JOINT. Two different cover joint designs are available. These are either the bolted cover or the threaded and seal welded type.
GASKET. The bolted cover joint design valve uses a contained, controlled compression, spiral wound type gasket.
COVER BOLTING. The cover bolting is manufactured of alloy steel in accordance with the requirements of the applicable specifications such as API 602 and ASME B16.34.
SEAT. The body seat for the piston and ball check valves is an integral weld overlay and is part of the valve trim. The swing check valve is supplied with a separate seat ring which is pressed into the valve body and wedged into place, forming a seal with the body.
PISTON, BALL OR DISC. The piston, ball or disc is forged steel and is part of the valve trim. The seating surface of the piston and ball check is of the tapered or plug type design. The seating surface of the swing check is of the flat seat design.
SPRING. The spring is optional and supplied only upon request.
Design construction:
ASME B16.34 - BS 5352
Testing according to API 598
Marking MSS SP25
Spring on request only
Spiral-wound gasket
Socket Weld Ends to ASME B16.11
Screwed Ends (NPT) to ASME B1.20.1
Butt Welding Ends to ASME B16.25
Ratings: - carbon steel class 800 1975 psig @ 100°F(138 bar + 38°C)
- carbon steel class 1500 3705 psig @ 100°F(255 bar + 38°C)
Competitive Advantages:
Our products is guaranteed within 18 months after delivery.
We offer free sample if interest before orders.
Technology renovation, process improvement, structure optimization and quality improvement.
Excellent after-sales service system, providing timely and optimal service, which help you to win the market.
Convenient shipping sea port, and standard exporting carton boxes & plywood cases.
100% inspection & testing before delivery.
Third party inspection on customer requirement.
Flange Ends type


Thread/Welding ends Type

RST VALVE is looking forward to strengthening cooperation with various sectors of society to create brilliancy together.   MADE IN CHINA, FOCUS ON WORLD!