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This specification covers spring-loaded, angle style, pressure relief valves for steam, gas, and liquid system applications. Pressure relief valves shall be of the following types and material grades: Type I, Grades A and B; Type II, Grades C and D; and Type III, Grades E and F. Hydrostatic shell test and set pressure, blowdown, and seat tightness test shall be performed to meet the specified requirements.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers spring-loaded, angle style, pressure relief valves for steam, gas, and liquid system applications (excluding boiler safety and hydraulic system relief valves).
1.2 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Military Standards and SpecificationsMIL-F-1183 Fittings, Pipe, Cast Bronze, Silver Brazing, General Specification for MIL-P-46122 Plastic Molding Material and Plastic Extrusion Material, Polyvinylidene Fluoride Polymer and Copolymer MIL-R-17131 MIL-S-901 Shock Tests, H.I. (High-Impact); Shipboard Machinery, Equipment and Systems, Requirements for MIL-STD-1330 MS16142 Boss, Gasket-Seal Straight Thread Tube Fitting, Standard Dimensions for MS51840 Plug, Machine Thread, O-ring
ASME StandardASME B1.1 ASME B16.5 Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
A105/A105M Specification for Carbon Steel Forgings for Piping Applications
A125 Specification for Steel Springs, Helical, Heat-Treated
A182/A182M Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
A193/A193M Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications
A194/A194M Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both
A216/A216M Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High-Temperature Service
A217/A217M Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts, Suitable for High-Temperature Service
A227/A227M Specification for Steel Wire, Cold-Drawn for Mechanical Springs
A229/A229M Specification for Steel Wire, Quenched and Tempered for Mechanical Springs
A231/A231M Specification for Chromium-Vanadium Alloy Steel Spring Wire
A276 Specification for Stainless Steel Bars and Shapes
A313/A313M Specification for Stainless Steel Spring Wire
A351/A351M Specification for Castings, Austenitic, for Pressure-Containing Parts
A479/A479M Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
A494/A494M Specification for Castings, Nickel and Nickel Alloy
A689 Specification for Carbon and Alloy Steel Bars for Springs
B21/B21M Specification for Naval Brass Rod, Bar, and Shapes
B61 Specification for Steam or Valve Bronze Castings
B62 Specification for Composition Bronze or Ounce Metal Castings
B148 Specification for Aluminum-Bronze Sand Castings
B164 Specification for Nickel-Copper Alloy Rod, Bar, and Wire
B637 Specification for Precipitation-Hardening and Cold Worked Nickel Alloy Bars, Forgings, and Forging Stock for Moderate or High Temperature Service
D5204 Classification System and Basis for Specification for Polyamide-Imide (PAI) Molding and Extrusion Materials
F467 Specification for Nonferrous Nuts for General Use
F468 Specification for Nonferrous Bolts, Hex Cap Screws, Socket Head Cap Screws, and Studs for General Use
Federal SpecificationsQQ-N-281 Nickel-Copper Alloy Bar, Rod, Plate, Sheet, Strip, Wire, Forgings, and Structural and Special Shaped Sections QQ-N-286 Nickel-Copper-Aluminum Alloy, Wrought (UNS N05500)
Naval Sea Systems Command (NAVSEA) Drawings803-1385943 Unions, Silver Brazing, 3000 PSI, WOG IPS, for UT Inspection 803-1385946 Unions, Bronze Silver Brazing, WOG, for UT Inspection
API StandardsAPI 526 Flanged Steel Safety-Relief Valves API RP 520, Part 1
ICS Number Code 47.020.30 (Piping systems)
UNSPSC Code 40141600(Valves)
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ASTM F1508-96(2021), Standard Specification for Angle Style, Pressure Relief Valves for Steam, Gas, and Liquid Services, ASTM International, West Conshohocken, PA, 2021, www.astm.orgBack to Top