Alarm Check Valve Diagram

Wet system valves water motor alarm model av 1 300 alarm check valve 300 psi 20 7 bar 2 1 2 to 8 dn65 to dn200 vertical or horizontal installation model rc 1 retard chamber for variable pressure wet pipe sprinkler systems 300 psi 20 7 bar model wma 1 water motor alarm hydraulically operated mechanical sprinkler alarm.

Alarm check valve diagram. E alarm check valves with e3 trim. Cad drawings engineering specs valve size. See full size image. Technical data sheet en it nl pt.

External bypass prevents false alarm under all supply pressure condition. Cancer and reproductive harm www p65warnings ca gov. An alarm check valve can be activated or opened in one of two basic ways. The wet alarm valve is designed for applications where the water is unlikely to freeze.

The main purpose of the alarm check valve is to ring a mechanical bell called a water motor gong. Under normal circumstances the clapper of the valve is. 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. In the event of variable pressure condition false alarm.

It is most important to ensure a clean water supply free of debris and solid particles such as sand gravel or mud. An alarm check valve is basically a check valve with an alarm port. The valve should if properly maintained help hold the system pressure steady and reduce the possibility of false alarms. Any alarm check valve should be carefully tested examined and cleaned periodically in accordance with nfpa 25.

4 100 mm 6 150 mm 8 200 mm download bulletin. 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. Cancer and reproductive harm www p65warnings ca gov. If during the annual inspection of alarm check valves sediment or free particles of matter are noted a further.

Either manually when a person activates a water gong or electronically.