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| 3-Speed NRF wet rotor circulators  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. NRF 3-speed circulators offer flow rates from 24 to 45 GPM, and heads from 19 to 33 feet. The NRF-25 model offers performance coverage that exceeds that of competitive circulators. An optional check valve is also available for the NRF-25 model. With the addition of the NRF-25 and the NBF-25 models, the Bell & Gossett line now has a complete offering for residential and light commercial heating systems.write your comments about the article :: © 2008 Construction News :: home page |