Tuthill # 2C2F-CC-A-7-89256 Rotary Gear Pump and Motor unit

The Tuthill 2C2F-CC-A-7-89256 is a Cast Iron Rotary Gear Pump and Motor unit, close coupled pump and motor assembly, with a Viton Lip Seal, Counter Clockwise rotation only (from shaft end view), A-type Tang Shaft, Viton elastomers, and 1 Inch NPT by 1 Inch NPT ports. This pump is close coupled and assembled onto a 1-1/2 Horsepower, 1125 RPM, 208-230/460 Volts, Three Phase, TEFC (Totally Enclosed Fan Cooled), 184CZ FRAME electric motor. The motor on this pump and motor assembly is a proprietary Tuthill motor with an internal coupling hub making for an extremely compact rotary gear pump and motor. This pump and motor assembly includes the 2CF26 Adapter. This pump was specifically developed for flange mounting applications and for close coupling to Tuthill's special motors to provide extremely compact close-coupled combinations. This pump is supplied with a single spring-loaded lip seal, and can handle inlet pressures to 25 PSI, and has a maximum differential capability of 100 PSI. This pump has only two moving parts. Pumping action is based on a rotor, idler gear, and a cover cast with a crescent-shaped partition. The space between the outside diameter of the idler and the inside diameter of the rotor is sealed by the crescent. Power applied to the rotor is transmitted to the idler gear with which it meshes. The liquid fills the spaces between the teeth of the idler and the rotor and is carried past the crescent partition through the pressure side of the pump. When the teeth mesh on the pressure side, the liquid is forced from the spaces and out through the discharge port. This pump can be driven in either direction of rotation, unless outfitted with an internal relief valve. This pump does NOT have an internal relief valve, so an external relief valve should be added somewhere on the discharge piping. Please note that this pump is a positive displacement pump and as the pump rotates, liquid is positively delivered to the discharge side of the pump. If the discharge line is closed off, pressure will increase until the drive stalls and/or fails, the pump breaks or ruptures, or the piping bursts. To prevent this from happening, the use of a pressure relief valve is required, or use of an in-line safety relief valve, pressure shutdown switch or other similar device. A relief valve that directs the flow back to the supply tank is recommended. This pump should not be used for handling plain water, corrosive or abrasive liquids or liquids not possessing adequate lubricity. Do not run the pump dry, as this could cause severe damage to the internal seal, bushings and/or metal parts.