ASME B31.9 - Working Pressure and Temperature Limits

The working pressure and temperature limits of ASME Code B31.9 - Building Services Piping

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ASME B31.9 Building Services Piping applies to the following building services:

Condensing water
Water for heating and cooling
Steam and condensate
Vacuum
Compressed air and nontoxic nonflammable gases

The working pressure and temperature limits of B31.9 can be summarized to:

Service	Temperature Limits	Pressure Limit
Steam and condensate	maximum 366^oF (186^oC), minimum 0^oF (-18^oC)	150 psig (1000 kPa)
Air, gases and vapors	maximum 200^oF (93^oC), minimum 0^oF (-18^oC)	150 psig (1000 kPa)
Nonflammable Liquids	maximum 250^oF (121^oC), minimum 0^oF (-18^oC)	350 psig (2300 kPa)

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Related Topics

Piping Codes and Standards Piping codes and standards - ASME, ANSI, ASTM, AGA, API, AWWA, BS, ISO, DIN and more...
Pressure Ratings of Pipes and Tubes Pressure ratings of pipes and tubes and their fittings - carbon steel , stainless steel, plastic, copper and more

Related Documents

ASME B31 - Standards of Pressure Piping A survey of one of the most important pressure pipe codes - ASME B31, earlier known as ANSI B31
Fiberglass Pipes - common Standards Commonly used standards for fiberglass pipes and their applications

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