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Landing Valves Stainless Steel

Valves & Risers

Pressure regulating hydrant valve

Pressure Regulating Hydrant valves regulate the outlet pressure to a safe limit, where inlet pressures can be higher than the normal working pressure. They are normally mounted onto wet risers or on stand posts fitted on the fire water network.

Brief Description: AAAG Pressure Regulating Hydrant Valve, Oblique type, High Pressure, made of Stainless Steel, having 3” Flanged inlet, and 2½” (63 mm) female instantaneous outlet, provided with handwheel for operation, complete with blank cap and chain.

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AAAG-PRESSURE-REGULATING-HYDRANT-VALVE-SS304.pdf
1 GENERAL DATA
1.1 Make AAAG
1.2 Size  3” (80 mm) – Flanged
1.3 Inlet  3” Flanged inlet (Drilling as per ANSI B16.5 150# FF)
1.4 Outlet  2½” (63 mm) Female Inst. Adaptor
1.5 Reference Standard  NIL
     
2 MATERIAL OF CONSTRUCTION
2.1 Body, Bonnet, Female outlet and parts  S.S. 304 (IS: 3444 Gr. I)
2.2 Stem  IS: 6603 (SS 304)
2.3 Pressure Regulating Mechanism  SS 304 (IS: 3444 Gr. I)
2.4 Hand Wheel  Cast Iron (IS: 210)
2.5 Washers  Natural Rubber as per IS: 937
     
3 TESTING AND QUALITY CONTROL
3.1 Dimensional check  Dimensions as per Drawing (See below)
3.2 Seat Leakage Test  14 bar for 2 minutes
3.3 Valve Body Test  21 bar for 2 minutes
3.4 Pressure Regulation Test  Outlet pressure of 4.5 +/- 0.5 bar at varying inlet pressures (12.5,
17.5, 20.5 bar) with flow of 510 +/- 30 lpm
3.5 Documentation  Internal inspection report, supplier’s certificates, approved laboratory
test certificates
     
4 OPERATIONAL/ TECHNICAL DATA
4.1 Working pressure range  upto 16 bar
4.2 Weight (approx.)  NIL
     
5 FINISH  
5.1 Body  Painted - Fire Red Color
5.2 Wheel  Painted - Black Paint
5.3 Parts  Polished
     
6 APPROVALS & MARKING
6.1 Approvals  NIL
6.2 Marking on Hydrant valve  AAAG/ Size/ Year of Manufacture/ SI No
     
7 WARRANTY
7.1 Warranty & Guarantee  12 Months from the date of supply