Alarm Check Valve Detail

Any alarm check valve should be carefully tested examined and cleaned periodically in accordance with nfpa 25.

Alarm check valve detail. When a flow of water from the system equals or exceeds that of a single sprinkler the valve is to actuate a fire alarm. Alarm check valves shall be ul listed and fm approved. Consequently with the alarm check valve set for service there is no flow through the alarm port to the alarm devices i e water motor alarm and or pressure alarm switch. The water staying pressurized in the pipes is released over the fire area after the sprinkler is activated.

Cancer and reproductive harm www p65warnings ca gov. Either manually when a person activates a water gong or electronically. The alarm check valve is a water flow alarm device designed for vertical installation in the main supply to a wet pipe sprinkler system. It is most important to ensure a clean water supply free of debris and solid particles such as sand gravel or mud.

Waterway clapper in the alarm check valve. External bypass prevents false alarm under all supply pressure condition. Alarm check valve shall be equipped with a water motor operated mechanical alarm or pressure switch to initiate an electric alarm. Description 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.

Search products suppliers product directory supplier discovery. The wet alarm valve is designed for applications where the water is unlikely to freeze. Sdh ava technical data. Technical data sheet en it nl pt.

Alarm check valves shall be of the model h series. Alarm check valve is a wet pipe sprinkler system water check valve which is installed in the wet pipe sprinkler system. Documents and resources technical data sheets. If during the annual inspection of alarm check valves sediment or free particles of matter are noted a further.

Once the pressures stabilize the alarm check valve is in service and the centrally located groove in the seat ring is sealed. Join free for buyer. China fire alarm valve zsfz100 wet alarm check valve find details about china alarm valve alarm check valve from fire alarm valve zsfz100 wet alarm check valve sinco fire and security co limited. 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.