Catalog excerpts
DOUBLE DOOR CHECK VALVE General Specifications: Double Door Check Valve is a wafered, double door swing type check valve that allows water flow in one direction only. A hinged clapper remains open with water flowing in one direction, and automatically closes when flow stops preventing backflow. These valves are suitable for vertical installation with the flow upwards. Connections: ANSI B16.1 Class 125 Maximum Working Pressure: 12 bar (175 PSI) Temperature -10° -82°C Coating Fusion Bonded Epoxy Coating In accordance with ANSI / AWWA C550 SIZES SIZES PRODUCT ORDERING CODES
Open the catalog to page 1Installation: The valve must be installed with the direction arrow on the body in line with the direction of the flow in the pipeline. Fire Fighting double door check valves can be installed vertically with the flow direction upwards only. Visually inspect the valve, make sure the seating of debris and any foreign materials. Large valves are provided with lifting hook, which should be used to manoeuvre the valve. MATERIAL SPECIFICATION COMPONENT BODY STOP PIN HINGE PIN SEAT PIN RETAINER GASKET WASHER SPACER DISC SPRING LIFTING HOOK MATERIAL CAST IRON AST A 126 CLASS B STAINLESS STEEL AISI...
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