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Gate Valve Nominal size: DN15 DN600mm(1/2'-24' ), Working pressure: PN1.6MPa 42 MPa(150lb to 2500lb), Working temperature: -196 Celsius degree t +680Celsiusdegree. Body material: Carbon Steel, Alloy Steel, Stainless Steel, Alloy 20etc. It is available to follow other material required by the client. And our products are widely applicable to the fields of petroleum, chemical industry, metallurgy, machinery, power industry, military, water supplying with good reputation and reliability from the users. API Steel Gate Valve: 1. Design and manufacture according to ANSI B16.34, API 600 and API 6D. 2. Compact structure, small bulk, good rigidity, safety and reliability. 3. Closure parts (Wedge) adopt flexible structure and can automatically compensate for body distortion resulting in abnormal load or temperature. So it has reliable sealing and to avoid wedge clamped. 4. Valve seat is renewable, which may combine and match sealing face of closure parts at random to meet job condition and extend usage time.