Yongjia Kosen Valve

Forged Steel Gate Valve

Product Description KOSEN Forged steel Gate Valves are primarily used for stop valves fully opened or fully closed .They are not normally considered for throttling purposes,but more for slurries,viscous fluids,etc. Gate valves are characterized by a traveling wedge ,which is moved with the...

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Product Details

Product Description

Forged steel valves have three types of bonnet design. The first type is a bolted cover, according to this design of the valve, the valve body and cover with bolts and nuts connected, wound gasket (316 clamps of flexible graphite manufacturing). A metal ring can also be used when customers have special requirements. The second design is a welded cover, according to this design form of valve, the valve body and cover with a threaded connection, all welded seal. When customers have special requirements, they can also use welded joints. The third type is the pressure self-tightening cover. The valve body is threaded to the cover and sealed by an internal pressure self-sealing ring.

Technical Specification

Normal Size Range: 1/2"- 4"
Normal Pressure Rating: PN10~PN420, CLASS150~2500  
Material: A105,LF2,F11,F22,F304,F304L,F316,F316L
Temperature Range: -29~425Degree C

Standards compliance

Design and Manufacture: API602

Face to face(end to end): ASME B16.10

Flanged connection: ASME B16.5

Butt welded end: ASME B16.25
Socket-Welding Ends: ASME B16.11

Screwed Ends: ASME B1.20.1

Test and inspection: API598



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