Alarm Check Valve Testing

Alarm check valve is core element in wet pipe fire sprinkler systems.

Alarm check valve testing. External bypass prevents false alarm under all supply pressure condition. Refer to pages 3 and 4 for dimensional information. Sdh ava technical data. A properly functioning check valve will guard against overspills and contamination of other systems.

Each of these 6 risers are connected from 8 header pipe from the fire pump. The valve is designed to initiate an alarm during a sustained flow of water such as the flow required by an open sprinkler by operating an optional water motor. The viking model j 1 alarm check valve serves as a check valve by trapping pressurized water above the clapper and preventing reverse flow from sprinkler piping. Verify that adequate space is available for valve trim and accessories.

Should i need to install alarm check valves in each warehouse or is it enough to install one 8 alarm check valve in pump room. Either manually when a person activates a water gong or electronically. Globe alarm check valve installation and maintenance guide important notes 1. An alarm check valve can be activated or opened in one of two basic ways.

Viking s innovative model g valve animation duration. 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. I 751 series 751 firelock alarm check valve installation maintenance and testing manual important installation information 1. Each warehouse having 230 no s of sprinklers with 6 main riser pipes 6 zone control valve assembly each.

Any alarm check valve should be carefully tested examined and cleaned periodically in accordance with nfpa 25. It serves a dual purpose which prevents a reverse flow of water non return also provides for the use of the water motor gong. Meanwhile in the event of variable pressure condition false alarm is prevented with provision of retard chamber at the external bypass. Because it s so important the installation needs to be documented and your valves need to be tested on a regular basis by a knowledgeable staff member.

Viking sprinkler 64 752 views. 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. This makes the check valve a critical piece of any system. Wet system alarm check valve duration.