ALARM VALVE MODEL-H
Alarm Valve is a double seated clapper check valve with grooved seat design, which ensures positive water flow for alarm operation and is designed for installation in wet pipe sprinkler system. External bypass prevents false alarm under all supply pressure condition. In the event of variable pressure condition, false alarm is prevented with the provision of retard chamber, thus the design allows for installation under both variable and constant supply pressure condition. Operation of one or more automatic fire sprinklers causes the water to flow the sprinkler system causing the alarm valve to open, allowing continuous flow of water the system and transmittal of alarm, both electrical and mechanical.
TECHNICAL DATA
| MODEL | H |
| END CONNECTION | Flange X Flange Flange X Groove Groove X Groove |
| NOMINAL SIZE | 200, 150, 100 & 80 NB |
| MAXIMUM SERVICE PRESSURE |
17.5 Bar (250 PSI) |
| THREADED OPENING | BSPT |
| MOUNTING | Vertical |
| FLANGE CONNECTION | ANSI B16.42 #150 (Flange drilling matching to ANSI B 16.5 # 150) |
| TRIM | Galvanised fitting with Brass Valves |
| FACTORY HYDROSTATIC TEST PRESSURE |
35Kg./Sq.Cm. (500PSI) |
| FRICTIONAL LOSS IN TERMS OF EQUIVALENT LENGTH OF PIPE ( C-120 ) |
200 NB - 7.50 Mtrs. 150 NB - 7 Mtrs. 100 NB - 6.1 Mtrs. 80 NB - 4.7 Mtrs. |
| FINISH | Red RAL 3000 |
| APPROVAL | UL Listed & FM Approved |
| ORDERING INFORMATION |
Specify Size of valve, Trim details, End Connection & PIPE OD |
| REFERENCE | NFPA 13 and NFPA 25 |
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