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ISO 10434:2020

Bolted bonnet steel gate valves for the petroleum, petrochemical and allied industries
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ISO 10434:2020

Bolted bonnet steel gate valves for the petroleum, petrochemical and allied industries

PUBLISH DATE 2020
ISO 10434:2020

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.
SDO ISO: International Organization for Standardization
Document Number ISO 10434
Publication Date Aug. 1, 2020
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 153
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