Safety Valve Standards
The most common used safety valve standards in Germany, UK, USA, France, Japan, Australia and Europe.
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| Country | Standard No. | Description |
|---|---|---|
| Germany | A. D. Merkblatt A2 | Pressure Vessel Equipment safety devices against excess pressure - safety valves |
| TRD 421 | Technical Equipment for Steam Boilers Safeguards against excessive pressure - safety valves for boilers of groups I, III & IV | |
| TRD 721 | Technical Equipment for Steam Boilers Safeguards against excessive pressure- safety valves for steam boilers group II | |
| United Kingdom, UK | BS 6759 | Part 1 specification for safety valves for steam and hot water Part 2 specification for safety valves for compressed air and inert gas Part 3 specification for safety valves for process fluids |
| France | AFNOR NFE-E 29-411 to 416 | Safety and relief valves |
| NFE-E-29-421 | Safety and relief valves | |
| Korea | KS B 6216 | Spring loaded safety valves for steam boilers and pressure vessels |
| Japan | JIS B 8210 | Steam boilers and pressure vessels - spring loaded safety valves |
| Australia | SAA AS1271 | Safety valves, other valves, liquid level gauges and other fittings for boilers and unfired pressure vessels |
| USA | ASME I | Boiler applications |
| ASME III | Nuclear applications | |
| ASME VIII | Unfired Pressure Vessel Applications | |
| ANSI/ASME PTC 25.3 | Safety and Relief Valves - performance test codes | |
| API RP 520 | Sizing selection and installation of pressure relieving devices in refineries, Part 1 Design, Part 2 Installation | |
| API RP 521 | Guide for pressure relieving and depressurizing systems | |
| API STD 526 | Flanged steel pressure relief valves | |
| API STD 527 | Seat tightness of pressure relief valves | |
| Europe | EN ISO 4126 | Safety devices for protection against excessive pressure |
| International | ISO 4126 | Safety valves - general requirements |
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Related Topics
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Control Valves and Equipment
Sizing and dimensions of control valves & equipment in steam and condensate systems. -
Heating
Heating systems - capacity and design of boilers, pipelines, heat exchangers, expansion systems and more. -
Valve Standards
International standards for valves in piping systems.
Related Documents
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ASME - International Boiler and Pressure Vessel Code
The International Boiler and Pressure Vessel Code safety rules governing design, fabrication, and inspection of boilers and pressure vessels, and nuclear power plant components during construction. -
Boiler Capacities
Steam boilers output can be expressed in Boiler Horsepower, MBTU or in Pounds of Steam delivered per hour. -
Factors of Safety - FOS
Factors of Safety - FOS - are important in engineering designs. -
Heating Systems - Safety Valves Size vs. Boiler Power
Safety valves with boilers ranging 275 to 1500 kW. -
High Pressure Steam Systems - Safety Valve Capacities
Sizing safety valves according boiler output power in high pressure systems (kW and Btu/hr) -
Low Pressure Steam Safety Valves - Capacities
Sizing safety valves after boiler output power in low pressure systems (kW and Btu/hr). -
Pilot Operated Safety Valves in Liquid Systems
Calculate pilot operated relief valves in liquid systems. -
Relief Valves - Length of Vent Pipes
Calculate length of safety valves vent pipes. -
Safety Signals - Recommended Colors
American National Standards Institutes schedule for safety colors marking physical hazards. -
Safety Valves in Gas and Vapor Systems
Calculating relief valves in gas and vapor systems. -
Spring Operated Safety Valves in Liquid Systems
Calculate spring operated relief valves in liquid systems. -
Valve Selection Guide
Applications guide for selecting valves. -
Valves - Specific Services
In case of a specific service - the choose of a valve may be simplified by following an established practice.
