Fuji VV7 Blower Relief Valve Vacuum 85 in wc 2 in NPT

Blower Relief Valve for Vacuum Systems

The Fuji VV7 is a blower relief valve designed for vacuum applications with a preset limit of 85 in wc. It suits maintenance engineers and plant operators who need reliable pressure protection on positive-displacement blowers. The valve activates automatically when vacuum exceeds the factory setting, preventing damage to connected equipment. Buyers who require adjustable relief settings or pressure-side operation cannot use this fixed vacuum model.

Practical Limits of the NPT Interface

The valve connects through a 2 in female NPT inlet, which determines the piping diameter and thread standard for installation. This fixed connection size means the valve cannot be adapted to smaller or larger pipework without additional fittings. The preset vacuum limit of 85 in wc is not field-adjustable, so the device only protects systems designed around that specific threshold. Installations needing a different relief pressure must select an alternative valve.

Build Quality and Daily Implications

The unit measures 6.25 in overall length, allowing it to fit within standard blower discharge arrangements. Its construction follows Fuji Electric manufacturing standards for industrial drainage and trap components. The female NPT inlet accepts standard male pipe threads, simplifying replacement of compatible manufacturer parts such as VFC700A-7W, VFZ701A-5W and VFZ701A-7W. The valve ships new and ready for immediate installation on matching 2 in NPT pipework.