This 1/8 inch high capacity air vent includes a manual vent feature and is used in commercial and residential hydronic heating applications to provide automatic air venting for hot or cold water distribution systems. It consists of a brass body construction with female NPT connection, brass cover, air vent with silicone rubber seal, shutter, polyethylene float with valve plug, automatic vent with black cap, and manual vent with red cap. It has a high capacity and high temperature rating and is ideal for use with glycol systems or for use as an anti-vacuum device. It can be disassembled for inspection and cleaning. The maximum pressure is 150 psi (10 bar).
WATTS® Air Vent, High Capacity, Series: DuoVent, 1.45 to 150 psi, 33 to 240 deg F, Brass, 3 in H, Import
- Impurities do not usually affect function as maximum float line of water is always lower than the valve seal
- Float is high temperature resistant polyethylene
- Suitable for use with glycol systems
- Air vent with silicon rubber seal