Potable Water Circulators

TC-1 Automatic Timer Kit

To increase the overall efficiency of a hot water recirculation system, the TC-1 timer control kit can be installed for use on any B&G NBF circulator.

The TC-1 timer control is programmable to turn the circulator ON and OFF automatically at preset times. This permits the user to have the pump circulate hot water only during those times when high usage can be expected throughout the day.

Residential or light commercial.

Models – Part Number (see Brochure A-109H for dimensions & weights)

NBF-8S/LW – 103257LF
NBF-9U/LW – 103258LF
NBF-10S/LW – 103259LF
NBF-12F/LW – 103260LF
NBF-12U/LW – 103261LF
NBF-18S – 103316LF
NBF-22 – 103252LF
NBF-22U – 103255LF
SSF-22 – 103357LF
NBF-33 – 103351LF
NBF-36 – 103401LF
NBF-45 – 103405LF


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:


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.