Common use of Gate Valves Clause in Contracts

Gate Valves. Flanged, raised face, wedge, ASTM A-216 Gr WCB cast steel bodies, OS&Y and bolted bonnets. Valve trim shall have a proven 10 year service life in similar geothermal service, for example stellite or 316 sealing surfaces and 17-4 PH valve stem. Valve specifications shall be submitted to Company for approval and verification prior to order by Contractor.