Cast steel check valve
Size：NPS2～NPS60
Class：CL150～CL2500
Design：BS1868，API594，API6D
Connection Ends：RF，RTJ，BW
Structural form：swing type, lifting type
Main material：carbon steel, alloy steel, stainless steel, dual phase steel, nickel base alloy, etc
Media：water, steam, oil, corrosive media, etc
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Double disc swing check valve
Size：NPS2～NPS48
Class：CL150～CL2500
Design：API594
Connection Ends：RF，BW，Clip，lug
Main Materials：Carbon steel, alloy steel, stainless steel, dual phase steel, nickel base alloy, etc
Medium：Water, steam, oil products, corrosive media, etc
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Pressure self sealing check valve
Size：NPS2～NPS36
Class：CL600～CL2500
Design：ASME B16.34
Connection Ends：RF，RTJ，BW
Structure：Swing type
Main Materials：Carbon steel, alloy steel, stainless steel, dual phase steel, nickel base alloy, etc
Medium：Water, steam, oil products, corrosive media, etc
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Forged steel check valve
Size：NPS1/2～NPS2
Class：CL150～CL2500
Design：API602，ASME B16.34
Connection Ends：NPT，SW，RF，RTJ，BW，WAFER
Structure：Swing type，Lifting type
Main Materials：Carbon steel, alloy steel, stainless steel, dual phase steel, nickel base alloy, etc
Medium：Water, steam, oil products, corrosive media, etc
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