MSS SP-70 Gate Valve

An MSS SP-70 gate valve is a cost-effective gray cast iron linear valve engineered to meet the Manufacturers Standardization Society's SP-70 standard for flanged or threaded connections. Cast from ASTM A48 gray iron, it is designed for Class 125 (PN16) low-to-medium pressure utility pipelines operating below 120°C. The valve utilizes a rising or non-rising stem to drive a wedge perpendicular to the flow path, creating a straight-through conduit with negligible pressure drop when fully open. Featuring end flanges that match ANSI B16.1 dimensions, it is typically outfitted with a rubber-coated soft seal (EPDM/NBR) for tight isolation or a copper alloy metal seat for enhanced wear resistance. Municipal water utility contractors and civil infrastructure engineers can maximize project cost-efficiency and ensure strict code compliance by importing certified MSS SP-70 gate valves directly from leading manufacturers in China via our advanced B2B commercial platform.