A-A-50457A
April 7, 1989
SUPERSEDING
A-A-50457
January 15, 1982
COMMERCIAL ITEM DESCRIPTION
VALVES, RADIATOR, HEATING
PACKLESS BONNET, CLASS 125 PSIG
The General Services Administration has authorized the use of this commercial Item description In preference to Type II; Style D; Patterns 1 and 2; Services 1, 3, and 4; Classes 25, 60, 100, and 125 of Federal Specification W-V-1 60.
Abstract. This Commercial Item Description (CID) covers packless bonnet shutoff glove valves for use on radiators and connectors in steam and hot water heating system with pressures of 25 Inches mercury vacuum up to and including 125 pounds per square inch gage (psig).
Salient characteristics. Leakage thru valve stem shall be prevented by mechanical means in accordance with manufacturers standard practice. Valves shall be designed to operate at 125 psig working steam pressure and coincident steam saturation temperature. Valves shall be copper alloy conforming to American Society for Testing and Materials (ASTM) specifications for materials. Valve disc and wheel handle shall be non-metallic. Inlet connection shall be threaded female. Outlet connection shall be threaded male tailpiece with union nut. Valve marking shall be in accordance with Manufacturers Standardization Society (MSS) standard MSS 5P-25. Valves shall be of the following patterns and sizes:
Pattern 1- Straightway.
Pattern 2- Angle.
Size A- 1/2 inch.
Size B- 3/4 inch.
Size C- 1 inch.
Size D- 1-1/4 inch.
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Beneficial comments recommendations, additions, deletions, clarifications, etc. and any data which may improve this document should be sent to: Commanding Officer, Naval Construction Battalion Center, ATTN: Code 156, Port Hueneme, California 93043-5000. |
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
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