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Valves & Risers
Pressure reducing landing 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, as per BS 5041-1, LPCB Approved, made of Bronze, having 2½” (65 mm) flanged inlet, and 2½” (65 mm) Female Instantaneous outlet, provided with handwheel for operation, complete with blank cap and chain. Valve provides regulated output pressure for varying inlet pressures upto 20 bar, flow approx. 510 +/- 30 lpm at 4.5 bar.
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AAAG-G1041-BS-LPCB-KITE-TDS- PRV.pdf| 1 | GENERAL DATA | |
| 1.1 | Make | AAAG |
| 1.2 | Size | 2½” (65 mm) |
| 1.3 | Inlet | Flanged 2½” NB, BS:10 (ANSI B 16.5 150 # optional) |
| 1.4 | Outlet | 2½” (65 mm) Female Inst. Outlet (other connections possible) |
| 1.5 | Reference Standard | BS 5041-1/ BS:336 |
| 2 | MATERIAL OF CONSTRUCTION | |
| 2.1 | Body, Bonnet, Female outlet and parts | Bronze, BS:1400 LG2 |
| 2.2 | Stem | Brass, BS:2874 |
| 2.3 | Pressure Regulating Mechanism | Bronze, BS:1400 LG2 |
| 2.4 | Hand Wheel | Cast Iron, BS:1452/ SG Iron |
| 2.5 | Washers | Natural Rubber |
| 3 | TESTING AND QUALITY CONTROL | |
| 3.1 | Dimensional check | Dimensions as per Drawing (See below) |
| 3.2 | Seat Leakage Test | 22 bar for 2 minutes |
| 3.3 | Valve Body Test | 30 bar for 2 minutes |
| 3.4 | Pressure Regulation Test | Outlet pressure of 4.5 +/- 0.5 bar at varying inlet pressures (12.5, 175, 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 20 bar |
| 4.2 | Outlet pressure | Adjustable from 4 to 9 bars (Factory set pressure – 4.5 bar) |
| 4.3 | Weight (approx.) | 11.5 Kgs. |
| 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 | LPCB Approved (No. XXXXXX) |
| 6.2 | Marking on Hydrant valve | AAAG/ Size/ Year of Manufacture/ LPCB Mark/ SI No |
| 7 | WARRANTY | |
| 7.1 | Warranty & Guarantee | 12 Months from the date of supply |