ALARM VALVE MODEL-H

Manufacture: HD Fire Protect PVT. LTD.
Product code: HD247

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.

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Consulting hotline: 0944934114
Product information

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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