Plastic Air Valves
Having the benefit of being used in supply or extract applications HAS polypropylene air valves are suitable for wall, ceiling or exposed duct mounting. A central disc is attached to a threaded rod making the valve infinitely adjustable and a locking nut ensures settings are securely maintained.
As standard a mounting ring is supplied with each valve. The mounting ring should be securely fixed into the duct before the valve is pushed into the ring.
Both the valve and mounting rings are manufactured from a durable white polypropylene material. This offers the benefit of being anti-static and corrosion resistant making them ideal for use in humid environments.