Alarm Check Valve Dimensions

External bypass prevents false alarm under all supply pressure condition.

Alarm check valve dimensions. Meanwhile in the event of variable pressure condition false alarm is prevented with provision of retard chamber at the external bypass. E alarm check valves with e3 trim. 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. G a f e b c d 4 above 17 18 19 20.

E alarm check valves with e3 trim. These sturdy and reliable check valves provide non slam closure have low head loss and close drip tight. An alarm check valve can be activated or opened in one of two basic ways. 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.

See full size image. Wet alarm valve system and equipment wet alarm valves design for the over 4 c systems because it is weak against the freezing. Ask us how to spec the right check valve or get catalogs chemical resistance guides and submittals. 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.

It serves a dual purpose which prevents a reverse flow of water non return also provides for the use of the water motor gong. The wet alarm valve is designed for applications where the water is unlikely to freeze. Click here to view our check valve product warranty. When a check valve is needed to prevent backflow nibco has a complete line up including the nibco ring check with self closing disc horizontal swing sliding disc silent check and y pattern.

Get your backflow in check. 300 flanged cast steel check valve series 25314 dimensions parts materials dimensions inches due to continuous development of our product range we reserve the right to change the dimensions and information for this product as required. Either manually when a person activates a water gong or electronically. Alarm check valve and flow meter detector use for the mechanical and electronical alarm detections.

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. 4 100 mm 6 150 mm 8 200 mm download bulletin. Cancer and reproductive harm www p65warnings ca gov. Alarm check valve is core element in wet pipe fire sprinkler systems.

The water staying pressurized in the pipes is released over the fire area after the sprinkler is activated.