Product Description


The American standard forged steel check valve of  Future valve  has hard alloy welded on the guide rib by buildup welding. The guide sleeve of the upper cavity of the valve body is made of stainless steel to ensure smooth action of the valve flap; the valve flap and valve seat sealing faces are made of cobalt based hard alloy by plasma spray welding, and are thus high in hardness, erosion resistant and durable. With advanced pressure seal design and high purity graphite ring gasket, the valve is highly airtight. The middle cavity of the valve is of pressure self tightening seal structure; the higher the pressure in the cavity, the better the sealing performance is. The valve flap rotates along the pin outside of the valve seat to reduce impact at the moment of closing.
Product Detail


Design standards
Design and manufacture: BS 5352, ASME B16.34
Connecting size: ASME B16.11
Test and inspection: API 598
Performance Specification

Nominal pressure:150~800LB 


Strength test:15XPN MPa 


Seal tese:1.1XPN MPa 


Gas seal test:0.6MPa 


Valve body material:A105(C),F304(P),F304(PL),F316(R),F316L(RL)


Suitable medium:water,steam,oil,products,nitric 


Suitable temperature:-29°C~425°C 


Product Structure
 
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