Haight # 20U Ductile Iron Gear Pump

The Haight 20U is a Ductile Iron Gear Pump, square flanged Pump End Only less motor, 20 GPM rated, with Ductile Iron Construction, Viton Lip Seal, Steel Shaft, Steel Gears, Iron Rotor and Bearings. The standard construction materials of this pump are Ductile Iron Housing, Steel Shaft and Pinion Gears, Iron Rotor and Bearings, Buna N Lip Seals and Elastomers. These gear pumps have a Gear within a gear internal design and is very effective at handling a broad range of applications while operating at standard motor speeds, and reducing wear. Both of these operating characteristics play an important role in minimizing overall capital investment, and operating expenses. Compact rugged, and easy to maintain, these pumps are ideally suited to close-coupled mounting, or direct mounting to the motor. These pumps can operate at standard motor speeds, eliminating the need for pulleys/gear reducers. The involute gear design offers excellent suction characteristics, and minimizes noise and reduces internal bypassing It comes standard with self-lubricating gramix iron bearings, and easy to maintain Buna-N lip seals. The seals are installed in the UniverSeal design for simple and quick replacement, or change to alternate seal style. This is just the bare pump end, but there are optional mounting brackets which are designed for in-line mounting with standard NEMA frame size motors or bedplate mounting. These pumps are self-priming and will develop up to 27 inches of vacuum. Pumps will operate in either direction, and flow direction in the pump can be changed without disrupting the attached piping, or special tools. The is the standard pump model and it does not come with the relief valve but if required it has the flexibility of a bolt-on, integral Relief Valve assembly (sold as an extra adder) - the relief valve assembly can be added at any time, in the field, with no special tools.