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Bolted bonnet steel gate valves for the petroleum, petrochemical and allied industries
This document 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 can indicate a need for full port openings, heavy wall sections and large stem diameters.
This document 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 sizes NPS:
1; 1¼; 1½; 2; 2½; 3; 4; 6; 8; 10; 12; 14; 16; 18; 20; 24;
Applies for pressure Class designations:
150; 300; 600; 900; 1 500; 2 500;
And applies for pressure PN designations:
16, 25, 40, 63, 100, 160, 250 and 400.
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