Alarm Valve (Van báo động) | Fire Alarm Valve Manufacturer | HD Fire Protect https://www.hdfire.com/products-solutions/alarm-valves/ Wed, 12 Mar 2025 07:00:31 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.3 https://www.hdfire.com/wp-content/uploads/2025/04/cropped-hdfirelogo-32x32.png Alarm Valve (Van báo động) | Fire Alarm Valve Manufacturer | HD Fire Protect https://www.hdfire.com/products-solutions/alarm-valves/ 32 32 Alarm Valve Model H https://www.hdfire.com/products-solutions/alarm-valves/alarm-valve-model-h/ Wed, 03 Jul 2024 13:07:17 +0000 https://www.hdfire.com/?post_type=product&p=19930 Constructed from high-quality ductile iron ASTM – A536 material, offering exceptional strength and corrosion resistance. Internally and externally coated with fusion-bonded epoxy to ensure superior protection against environmental and operational wear, enhancing longevity. Available in multiple configurations—Flanged x Flanged, Grooved x Grooved, and Grooved x Flanged—to suit diverse installation needs. Operating Pressure: Rated for a

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    • Constructed from high-quality ductile iron ASTM – A536 material, offering exceptional strength and corrosion resistance.
    • Internally and externally coated with fusion-bonded epoxy to ensure superior protection against environmental and operational wear, enhancing longevity.
    • Available in multiple configurations—Flanged x Flanged, Grooved x Grooved, and Grooved x Flanged—to suit diverse installation needs.
    • Operating Pressure: Rated for a maximum operating pressure of 17.5 Bar (250 PSI), ensuring reliable performance in demanding fire protection systems.
    • Sizes: Offered in 80 NB, 100 NB, 150 NB, and 200 NB, catering to a range of flow requirements.
    • Trim Options:
        1. Variable Pressure Trim equipped with a Retard Chamber and Water Motor Gong for precise pressure control and audible alarm signaling.
        2. Constant Pressure Trim is available as an optional configuration for specific applications.
      • UL Listed and FM Approved, meeting global safety and performance standards.

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    ]]>         Water Motor Gong Bell https://www.hdfire.com/products-solutions/alarm-valves/water-motor-gong-bell-alarm-valves/ Wed, 03 Jul 2024 13:10:50 +0000 https://www.hdfire.com/?post_type=product&p=19932 Hydraulically operated mechanical bell used along with fire protection system valves Corrosion resistant Aluminium alloy material, epoxy coated all over Wall mounted or direct online mounting type UL Listed and FM Approved

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  • Hydraulically operated mechanical bell used along with fire protection system valves
  • Corrosion resistant Aluminium alloy material, epoxy coated all over
  • Wall mounted or direct online mounting type
  • UL Listed and FM Approved

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    ]]>         Retard Chamber https://www.hdfire.com/products-solutions/alarm-valves/retard-chamber/ Wed, 03 Jul 2024 13:11:03 +0000 https://www.hdfire.com/?post_type=product&p=19935 HD Retarding Chamber is used with Alarm Valve Trim when variable pressure is anticipated in the system. It is a holding tank to prevent sounding of Sprinkler Alarm during water pressure surge Material Stainless Steel 1 Gallon (3.8 Liter) Capacity Connection N 3/4″ BSPT (F) UL Listed and FM Approved

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  • HD Retarding Chamber is used with Alarm Valve Trim when variable pressure is anticipated in the system. It is a holding tank to prevent sounding of Sprinkler Alarm during water pressure surge
  • Material Stainless Steel
  • 1 Gallon (3.8 Liter) Capacity
  • Connection N 3/4″ BSPT (F)
  • UL Listed and FM Approved

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