Heating & Cooling Circulators

Lead-Free* Isolation Flanges – NPT and Sweat Connections

The isolation flange is a combination of a full port isolation ball valve and a companion flange for circulators. The isolation flange allows easy service or replacement of the circulator without the need to drain the system.

Free-floating flanges eliminate the need to align flanges making the pump installation a snap. Includes capscrews and nuts.

Can be used with most circulators, including NRF/NBF/SSF wet rotors, Series PL’s, Series 100, HV, PR & LR and other manufacturers’ pumps.

Available Sizes: 3/4″, 1″ & 1-1/4″ (refer to dimension and weight table for details).

When closed, the isolation flanges isolate the circulator from the rest of the system so the system does not need to be drained when removing the circulator.

*Contains less that 0.25% lead (by weight) on wetted surfaces

ESP-Systemwize

Ready to select pumps as well as suction diffusers, triple duty valves, heat exchangers, air/dirt separators, PIC valves, and parts? Click below to open the new Bell & Gossett ESP-Systemwize selection tool and enter your duty points to begin selecting the most energy efficient system:

ESP-Systemwize

Sizing Tools:

Steam + Water Pressure Reducing Values

Software Tool and Application Support/Suggest Enhancements

Please click the button below to report issues and suggest enhancements.

Support Request

System Selection and Technical Product Support

Consult your local Bell & Gossett Representative for additional assistance.