Watts - Isolation Pump Flange, Threaded, Adjustable Virgin PTFE Seat

The Watts Threaded Isolation Pump Flange with Adjustable Virgin PTFE Seat is a lead-free brass full-port isolation valve designed for hydronic heating and domestic hot water recirculation systems. It combines a full-port ball valve and a standard circulator pump flange into a single compact assembly, allowing circulator pumps to be isolated for servicing or replacement without draining the entire system. The valve features female NPT threaded connections, an adjustable virgin PTFE seat for smooth operation and long service life, and a corrosion-resistant brass body suitable for demanding hydronic applications.

Usage

This isolation pump flange is installed on the inlet or outlet of a circulator pump in boilers, radiant floor heating systems, fan coil units, and domestic hot water recirculation systems. The threaded connection installs directly onto threaded piping, while the flange bolts to a compatible circulator pump. The integrated full-port ball valve allows the pump to be isolated during maintenance or replacement, significantly reducing service time and system downtime.