haight

Series U - Universal Pumps

The Universal Pump Design combines the innovation of the Universeal shaft seal, the rugged simplicity of Haight’s proven “gear within gear” internal gear configuration, with the flexibility of a bolt-on, integral Relief Valve assembly. This combination of pump features offers pump users unsurpassed flexibility to adapt their pumps to changing system requirements. Universal Relief valve - can be added at any time. Can be used for either suction or return. “Gear within Gear” internal design - since 1937 this design has demonstrated its effectiveness in a broad range of applications. Universeal shaft seal - the pump can easily be converted from lip to mechanical or packed gland without disconnecting the piping.

Superior High Viscosity Rotary Gear Pumping

Features - Input drive at the inner gear provides a built-in gear reduction which means less cavitation at standard motor input speeds. The inner gear drive also permits a bearing to be provided on either side of the drive shaft and provides a balanced rotor. These features make the Haight Pump superior for high viscosity pumping. The same features also offer increased life through lower rotor surface speeds and better bearing support Most other rotary gear pumps have input drive at the rotor which increases risk of cavitation, rotor wear, rotor side load and higher bearing loads.

OEM Dynamics stock 11 basic model displacements are available ranging from 3.4 to 179.4 cc per rev (sizes 1UR through 80UR). Drive arrangements include base mount or flange mount. All models are available with internal or external bypass relief bypass valve systems. Viton or Mechanical seals are available on request.

Pressure rating standard lip seal- 5 Bar maximum continuous output pressure if fluid viscosity of 20cSt or less. 7 Bar if fluid viscosity up to 1000 cSt.

Pressure rating mechanical seal - 17 Bar

Temperature rating - 100 deg C maximum for Buna N seals. Viton seals available on request.

Pressure relief settings - factory preset at 60psi

1. Patented Haight Gear and Rotor for more efficient Positive Displacement pumping.
2. Three Tooth Contact for smoother uninterrupted pressure discharge.
3. Extra Deep Meshing of Gears reduces noise and avoids trapping.
4. New “Bolt on” reversible relief valve system for greater bypass versatility and simple field conversion
5. Pipe Plug type auxiliary port for tank return relief or for extra circuit installations.
6. Top quality ferrous metal bodies are standard with Gramix iron bearings.

New “UniverSeal” design allows for simple and quick seal replacement or change to an alternative shaft seal type.

Haight pump and electric motor packages come complete with pump, electric motor, base plate, flexible shaft coupling, and bellhousing.

Our standard range includes pumps 1UR to 40UR. 4 pole models range in flow rate form 5l/min to 134l/min.
Haight pump and electric motor packages are available with 4 pole 415 volt AC electric motors ranging from 0.55kW to 4kW.
Units with 6 or 8 pole motors are available on request as well as single phase 240 volt AC.

Pump packages using the larger 54UR and 80UR pumps are available on request.

In addition to our standard stocked 11 models of cast ductile iron internal gear pumps Haight offers an additional 10 models. These range in size from 12.87 cc per revolution (6EUR) to the largest 518.6 cc per revolution (240UR). For specialty applications Haight pumps can be upgraded with a wide range of seals, as well as various bearing materials and iron hardnesses. Plus for further application range they offer cast 316 SS internal gear pumps, Cast Bronze internal gear pumps, custom built dual flow pumps, skeleton pumps, magnetically coupled pumps, and barrier seal pumps. Haight also offer a range of centrifugal pumps in 316 SS, NI/AL/Bronze, and Duplex 2205 SS construction.

Haight

Series U - Universal Pumps

Superior High Viscosity Rotary Gear Pumping

We are specialists in the manufacture & servicing of Power Transmission and Heat Transfer products.

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