Model NRF-36 and NRF-45 axial-flanged, in-line, cast iron wet rotor circulation pumps are designed for residential and light commercial hydronic heating systems. The three-speed motors allow the pumps to cover a wide range of hydraulic capabilities. Features include a self-cleaning particle shield; heat-resistant, nonmetallic closed impeller design; and a high starting torque. The DuraGlideâ„¢ bearing system incorporates several components working together to eliminate seasonal freezeup. Flange sizes range from 3/4 to 1-1/2 inches NPT. The units have a maximum working pressure of 150 psi (10 bar) and a maximum operating temperature of 225Â°F (107Â°C).
Bell & Gossett, 8200 N. Austin Ave., Morton Grove, IL 60053; 847-966-3700; 847-966-9052 (fax); www.bellgossett.com