Alarm Check Valve Assembly
Inspect the valve rubber.
Alarm check valve assembly. They are assembled on fire pipeline to separates the fire area into small distribution zone for indication and control. Close the alarm test valve and verify that water has ceased to flow from the alarm line drain. An alarm check valve can be activated or opened in one of two basic ways. The bypass check valve reduces the possibility of false alarms by permitting slow as well as small transient increases in water supply pressure to be passed through.
Either manually when a person activates a water gong or electronically. Inspect the check valve clapper located on the bypass line. The av 1 300 alarm check valve trim includes pressure gauges to monitor system pressure conditions a bypass check valve a main drain valve and an alarm test valve. And deluge system is used in conditions that require quick application of large volumes of water such as storage tank equipment pits conveyor protection etc.
Tpmc provides a complete alarm check valve set in ul listed fm approved. Signal butterfly valve waterflow indicator pressure gauge and test drain valve. Clean the strainer of restriction assembly. Because of fire sprinkler or test valve activation the indicator detects water flow and transmits signal to control system.
Deluge valve is a quick release hydraulically operated diaphragm valve used in a deluge system. Cancer and reproductive harm www p65warnings ca gov. Naffco offers wet alarm valve assembly. Globe alarm check valve installation and maintenance guide table of contents june 2016 page i bulletin a c v i m rev.
Once the alarm check valves are activated they will allow water to flow through the system engaging the sprinkler system as and where needed in order to suppress a potential fire. The alarm check valve is a water flow alarm device designed for vertical installation in the main supply to a wet pipe sprinkler system across the uae dubai the mena region and qatar. The water staying pressurized in the pipes is released over the fire area after the sprinkler is activated. Zone control valve is a combined unit of 4 parts.
14 globe alarm check valves general description physical data 3 4 6 alarm check valve assembly and parts list 8 alarm check valve assembly and parts list. Documents and resources technical data sheets. Technical data sheet en it nl pt.