M00044253
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API Std 600 Steel Gate Valves - Flanged and Butt-welding Ends, Bolted Bonnets, Fourteenth Edition
standard by American Petroleum Institute, 05/01/2021
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Availability date: 01/06/2022
API STANDARD 600 FOURTEENTH EDITION, MAY 2021
API MONOGRAM PROGRAM EFFECTIVE DATE: NOVEMBER 2021
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Page
Scope 1
Normative References 1
Terms and Definitions 2
Pressure/Temperature Ratings 3
Design 3
Body Wall Thickness 3
Bonnet Wall Thickness 4
Body Dimensions 4
Bonnet 7
Bonnet-to-body Joint 7
Gate 8
Yoke 10
Stem and Stem Nut 11
Packing and Packing Box 13
Bolting 14
Operation 14
Bypasses and Other Auxiliary Connections 15
Fugitive Emission Design Requirement 15
Materials 15
Materials Other Than Trim Materials 15
Trim 16
Testing, Inspection, and Examination 17
Inspection and Examination 17
Pressure Tests 17
Repairs of Defects 18
Marking 23
General 23
Specific Markings 23
Preparation for Shipment 23
Coatings 23
Openings 23
Gate Position 24
Stem Packing 24
Packaging 24
Purchase Order Information 24
Annex A 25
Annex B (normative) Information to be Specified by the Purchaser 26
Annex C (informative) Identification of Valve Terms 28
Annex D (informative) Valve Material Combinations 29
Page
Annex E (informative) Wear Travel Measurement Technique 33
Bibliography 34
Identification of Terms 4
Types of Valve Gates 9
Wear Travel Detail 10
Backseat Contact Area for Integral Backseats and Backseat Bushings 17
Minimum Wall Thickness for Body and Bonnet 5
Minimum Inside Diameter for Sizes DN 800 to DN 1050 (NPS 32 to NPS 42) in classes 150 and 300 7
Minimum Wear Travel and Maximum Stem Projection 10
Minimum Stem Diameter 11
Nominal Radial Width of Packing (Metric) 14
Nominal Radial Width of Packing (U.S. Customary) 14
Materials for Parts 16
Nominal Seating Surface, Stem and Backseat Bushing or Weld-deposit Materials and Hardness 19
Trim Numbers and Alternative Trim Numbers 23
Material Combinations for Group 1 Body, Bonnet, and Cover Materials 29
Material Combinations for Group 2 Body, Bonnet and Cover Materials 30
Material Combinations for Group 3 Body, Bonnet, and Cover Materials 30
Alternative Body to Bonnet Bolting Materials 31
Steel Gate Valves—Flanged and Butt-welding Ends, Bolted Bonnets
This 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 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 pipe sizes DN:
— 25, 32, 40, 50, 65, 80, 100, 150, 200, 250, 300, 350, 400, 450, 500, 600, 650, 700, 750, 800, 850, 900, 950,
1000, 1050;
corresponding to nominal pipe sizes NPS:
— 1, 1 1/ , 1 1/ , 2, 2 1/ , 3, 4, 6, 8, 10, 12, 14, 16, 18, 20, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42;
4 2 2
and applies to pressure class designations:
— 150, 300, 600, 900, 1500, 2500.
This edition of API 600 states values in both metric and U.S. Customary units of measurement. These systems of units are to be regarded separately. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems constitutes nonconformance with this standard.
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
API Standard 598, Valve Inspection and Testing
API Standard 624, Type Testing of Rising Stem Valves Equipped with Graphite Packing for Fugitive Emissions