##DI 150mm Alarm valve - UL Listed, FM Approved - HD Model

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- Alarm Valve Model H, Flanged ANSI B16.5, UL Listed & FM Approved. Catalogue HD 247
- Constant Pressure Trim for alarm Valve Model-H
- Water Motor Gong Bell, Model GA, Mounting Type A, UL & FM Approved

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Alarm Valve Model H

HD Alarm Valve acts as a check valve by trapping pressurized water above the clapper and preventing reverse flow from sprinkler piping. It is used to actuate a fire alarm during flow of water from the sprinkler system. Alarm Valve is UL Listed and FM Approved.
  • Ductile Iron material to ASTM - A536
  • Flanged x Flanged, Grooved x Grooved and Grooved x Flanged available
  • Rated for maximum 17.5 Bar (250 PSI) operating pressure
  • Size: 80, 100, 150 and 200 NB
  • Variable Pressure Trim with Retard Chamber and Water Motor Gong
  • Constant Pressure Trim available as an option
  • Epoxy painted internally & externally
  • UL Listed and FM Approved


Design Parameters
Size 150mm (6")
MoC (Material of Construction)
MOC - Body/All Parts Ductile Iron
Inspection Parameters
Test Pressure 500 PSI
Service Pressure 17.5 Bar (250 PSI)
Body Powder Coated Red
UL Listed Yes
Guarantee (From Manufacturing Defect) 1 Year
FM Approved Yes
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