PURGENVENT Air Venting Valves are designed to remove excess air from sprinkler pipes to meet and/or exceed the new venting requirements established in NFPA 13 (2016).
The valves come in three different models that help the potential for corrosion in wet fire sprinkler systems. The product line includes both manual and automatic models - Model 7910MAV (Manual Air Venting Valve), Model 7900AAV (Automatic Air Venting Valve), and Model 7950ILV (Inline Air Venting Valve).
Model 7910MAV (Manual Air Venting Valve) is a ½ inch ball valve with integral strainer and ball check. This manual valve is designed to allow for the venting of air while the system is filling.
The Model 7900AAV (Automatic Air Venting Valve) is a 1 inch ball valve with integral isolation valve, strainer, purge valve and automatic air vent. This single body valve with hose threads on the purge valve is designed to allow for the rapid purging of air from the pipes as the system is filling, and the automatic venting of air once the system is operational.
The M7950ILV (Inline Air Venting Valve) was developed for use in systems with location restrictions. The M7950ILV utilizes an inline specially designed air/water separation chamber with an air scoop to aid in the separation of air from water during system filling and testing. The separation chamber’s larger diameter allows water entering the chamber to expand momentarily and separate from the air, which is then scooped into the venting assembly to be released by the M7900AAV.
The products’ compact size allows for easier installation and greater flexibility in placement.