Tuthill # 1LEV-C-A-7 Rotary Gear Pump

The Tuthill 1LEV-C-A-7 is a Cast Iron Rotary Gear Pump, Pump End Only, no motor, with an Internal Relief Valve set to 55 PSI (can be adjusted in field), Clockwise rotation only (from shaft end view), A type Tang Shaft, Viton mechanical shaft seal and o-ring, Viton elastomers, and 1/2 Inch NPT by 1/2 Inch NPT ports, replacement pump end only without a Motor. This pump is suitable for equipment, motor, or adapter mounting. Tuthill LE Series cast iron pumps employ the internal gear pumping principle. There are only two moving parts, and the pumping action is based on a rotor, idler gear, and crescent shaped partition cast integral with the cover. This pump has an internal relief valve, and the adjusting screw of the relief valve is located on the suction side of the pump. The internal relief valve on this pump is designed for over-pressure protection only. It is not intended as a flow control device or for any similar use. Continuous operation of the relief valve will result in excessive heat buildup within the pump cavity that could cause serious internal damage. Make certain the adjusting screw of the relief valve is located on the suction side of the pump. Unless otherwise specified at the time of order, this pump is supplied with the standard spring, with a range of 55-120 psi, set to provide full bypass relief at 55 psi. 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.