Forged Steel Thread/Welding/Flanged ends Gate 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.
Gate Valve mainly has Thread 200WOG Gate Valve, API600 Flanged ends Gate Valve, DIN F4/F7 Stainless Steel Flanged ends Gate Valve, Carbon Steel Bellow Seal Gate Valve, Forged Steel A105 Gate Valve, 800LB Thread ends Gate Valve, F11/F22/F51 1500LB Flanged ends Gate Valve, Butt Welded Gate Valve, Pressure Sealed Socket Welded Gate Valve, Flanged ends 2500LB High Pressure Gate Valve, 150LB~900LB WCB Flanged Gate Valve, Rising Stem Gate Valve, Non-Rising Stem Gate Valve, Gear Operated Gate Valve, Gate Valve with Pneumatic/Electric Actuator.
Forged steel, outside screw and yoke (OS&Y), rising stem, non-rising handwheel. Full or conventional port. Bolted or welded bonnet joint. Integral backseat.
Specifications:



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.
BONNET. The bonnet is forged steel, has an integral backseat and incorporates the stuffing box, which has dimensions per the applicable specifications such as API 602.
BODY-BONNET JOINT. Two different bonnet joint designs are available. These are either the bolted bonnet or the threaded and seal welded type.
GASKET. The bolted bonnet joint design valve uses a contained, controlled compression, spiral wound type gasket.
BONNET BOLTING. The bonnet bolting is manufactured of alloy steel in accordance with the requirements of the applicable specifications such as API 602 and ASME B16.34.
SEAT RINGS. The seat rings are steel and makeup part of the valve trim. They are pressed into the valve body and wedged into place, forming a seal with the body. The seating surfaces are ground and lapped.
WEDGE. The wedge, which is solid design, is forged or investment cast steel and is part of the valve trim. The seating surfaces are ground and lapped.
STEM. The stem is forged steel and part of the valve trim. It contains an integral back seat shoulder, which mates with the integral backseat of the bonnet. The stem is designed to the basic dimensional requirements of the applicable specifications such as API 602.
GLAND AND FLANGE. The gland, gland flange assembly utilizes a separate, two piece design. This self aligning design allows the flange to be unevenly tightened while the gland maintains it’s parallel alignment with the stem and stuffing box.
GLAND BOLTS AND NUTS. The steel/stainless steel gland bolt and nut assembly is a stud, double nut arrangement. This design allows complete removal from the valve when service is required. The use of industry standard thread full length studs and nuts also allows easy replacement should these items be lost or in need of replacement.
YOKE SLEEVE. The yoke sleeve is of forged stainless steel material having a high melting point and is resistant to wear and corrosion.
HANDWHEEL. The handwheel is forged carbon steel of an open spoke design. This robust construction along with appropriate sizing allows for ease of operation.
 
Design construction:
API 602 - ASME B16.34 - BS 5352
Testing according to API 598
Marking MSS SP25
Outside Screw and Yoke (OS&Y)
Self aligning two piece packing gland
Spiral-wound gasket
Integral backseat
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:
OEM/ODM is applicable
Offer free sample for testing
100% test before delivery
18 months warranty