NPFC - WW-U-531
UNIONS, PIPE, STEEL OR MALLEABLE IRON: THREADED CONNECTION, 150 LB, 250 LB, 300 LB WSP
inactive
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| Organization: | NPFC |
| Publication Date: | 16 April 1984 |
| Status: | inactive |
| Page Count: | 11 |
scope:
This specification covers pipe unions with threaded connections, for 150 psig (pounds per square inch gauge) WSP (working steam pressure), 250 psig WSP, and 300 psig WSP unions joining standard weight and extra heavy pipe.
intended Use:
Unions covered by this specification are intended for standard
weight and extra heavy pipe and are used on oil, fuel, gas, air,
water and steam lines. Pressure-temperature
Document History
March 21, 1997
UNIONS, PIPE, STEEL OR MALLEABLE IRON: THREADED CONNECTION, 150 LB, 250 LB, 300 LB WSP
A description is not available for this item.
March 11, 1994
UNIONS, PIPE, STEEL OR MALLEABLE IRON: THREADED CONNECTION, 150 LB, 250 LB, 300 LB WSP
A description is not available for this item.
March 30, 1989
UNIONS, PIPE, STEEL OR MALLEABLE IRON: THREADED CONNECTION, 150 LB, 250 LB, 300 LB WSP
A description is not available for this item.
WW-U-531
April 16, 1984
UNIONS, PIPE, STEEL OR MALLEABLE IRON: THREADED CONNECTION, 150 LB, 250 LB, 300 LB WSP
Unions covered by this specification are intended for standard weight and extra heavy pipe and are used on oil, fuel, gas, air, water and steam lines. Pressure-temperature ratings for unions covered...
July 2, 1976
UNIONS, PIPE, STEEL OR MALLEABLE IRON: THREADED CONNECTION, 150 LB, 250 LB, 300 LB WSP
A description is not available for this item.
November 2, 1973
UNIONS, PIPE, STEEL OR MALLEABLE IRON: THREADED CONNECTION, 150 LB, 250 LB, 300 LB WSP
A description is not available for this item.
August 24, 1965
UNIONS, PIPE, STEEL OR MALLEABLE IRON: THREADED CONNECTION, 150 LB, 250 LB, 300 LB WSP
A description is not available for this item.
February 20, 1964
UNIONS, PIPE, STEEL OR MALLEABLE IRON: THREADED CONNECTION, 150 LB, 250 LB, 300 LB WSP
A description is not available for this item.
October 8, 1957
UNIONS, PIPE, STEEL OR MALLEABLE IRON: THREADED CONNECTION, 150 LB, 250 LB, 300 LB WSP
A description is not available for this item.
October 18, 1932
UNIONS, PIPE, STEEL OR MALLEABLE IRON: THREADED CONNECTION, 150 LB, 250 LB, 300 LB WSP
A description is not available for this item.