Bell & Gossett has expanded its line of 3-Speed NRF wet rotor circulators for domestic hot water and closed-loop heating systems. The new model NRF-25 and NBF-25 circulators are equipped with 3-speed motors, which allow the pumps to cover a wide range of hydraulic capabilities. The complete line of Bell & Gossett 3-Speed NRF circulators all include: • Three-speed switch, providing more performance flexibility • Multiple hydraulic settings...