NPFC - F-V-2906
VALVES, AIR VENTING, STEAM
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| Organization: | NPFC |
| Publication Date: | 12 June 1997 |
| Status: | active |
| Page Count: | 9 |
scope:
This specification covers valves for automatically venting air from mains in steam heating systems.
Valves shall be one of the following types and classes, as specified (see 6.2):
Type I - Without vacuum holding device.
Type II - With vacuum holding device.
Class 1 - Low pressure - up to 15 pound-force per square inch gage (psig) (103.4 kilopascal (kPa)).
Class 2 - Medium pressure - 16 to 65 psig (110.3 to 448.2 kPa).
Class 3 - High pressure - 66 to 125 psig (445.1 kPa to 861.8 kPa).
intended Use:
The air-venting valves covered by this specification are intended primarily for venting mains in one-pipe-and two-pipe gravity steam heating systems. The valves may also be used for venting unit... View More
Document History
May 25, 2021
VALVES, AIR VENTING, STEAM
A description is not available for this item.
F-V-2906
June 12, 1997
VALVES, AIR VENTING, STEAM
The air-venting valves covered by this specification are intended primarily for venting mains in one-pipe-and two-pipe gravity steam heating systems. The valves may also be used for venting unit...
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