Bolted bonnet steel gate valves for the petroleum, petrochemical and allied industries
Open preview (PDF)Bolted bonnet steel gate valves for the petroleum, petrochemical and allied industriesBolted bonnet steel gate valves for the petroleum, petrochemical and allied industries
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1 Scope This International Standard specifies the requirements for a heavy-duty series of bolted bonnet steel gate valves for petroleum refinery and related applications where corrosion, erosion and other service conditions would indicate a need for full port openings, heavy wall sections and large stem diameters. This International Standard sets forth the requirements for the following gate valve features:
— bolted bonnet;
— outside screw and yoke;
— rising stems;
— non-rising handwheels;
— single or double gate;
— wedge or parallel seating;
— metallic seating surfaces;
— flanged or butt-welding ends.
It covers valves of the nominal sizes DN :
— 25; 32; 40; 50; 65; 80; 100; 150; 200; 250; 300; 350; 400; 450; 500; 600;
corresponding to nominal pipe...
Other BS standards
