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API STD 603 : 2025

Corrosion-resistant, Bolted Bonnet Gate Valves-Flanged and Butt-welding Ends

Standard Details

This standard specifies the requirements for corrosion-resistant bolted bonnet gate valves meeting the requirements of Standard Class, ASME B16.34 and having full port openings for use in process piping applications. This 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 sealing;

  • metallic seating surfaces;

  • flanged or butt-welding ends.

General Information

Status : ACTIVE
Standard Type: Main
Document No: API STD 603 : 2025
Document Year: 2025
Pages: 39
Edition: 10
  • Section Volume:
  • 08 Refining

Life Cycle

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API STD 603 : 2025
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