Fire Fighting

Designed for both indoor and outdoor use; Equipped with tamper resistant screws to prevent unauthorized entry. Two synchronized switches are enclosed in a durable terminal block. Terminals are easy to read and wire. Built-In mechanical time delay feature; minimizing the risk of false alarms due to pressure surges or air trapped in the system. Offers excellent performance during riser vibrations caused by large in-rushes of water. Designed and built for accuracy and repeatability. Sealed retard mechanism immune to dust and other contaminants Field-replaceable retard mechanism and SPDT switches Rugged, dual SPDT switches enclosed in a durable terminal block 100 percent synchronization activates both alarm panel and local bell Tamper-resistant cover screws

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 into the sprinkler system causing the alarm valve to open, allowing continuous flow of water into the system and transmittal of alarm, both electrical and mechanical.

MATERIAL Stainless Steel CONNECTION 3/4” BSPT (F) WEIGHT 2.6 Kg RATED PRESSURE 17.5 Bar (250 PSI)

SHIELD Sprinkler Alarm is a hydraulically driven mechanical bell. It does sound a continuous alarm when the sprinkler system operates. The impeller and drive shaft are energy efficient, made from light weight nonmetallic material and do not require any external lubrication. The gong, protection cover and motor housing are made of corrosion resistant aluminium alloy. Sprinkler Alarm with mounting Type-B is wall mounting type. Type-B is suitable for 50 to 250 mm thick wall and curves with 325 mm long drive shaft as standard supply. For wall thickness 250 to 450 mm or longer a special extension drive shaft can be supplied on request.

• Sensitivity adjustment wheel, no special tools required • Reinforced diaphragm resists pressure spikes • Two conduit entrances • Both one- and two-switch models available