Series U Round Hub
1-8gpm
Haight offers five sizes of pumps in the round hub
U-Series. All sizes are available with an optional bolt-on relief
valve which can function in either the return to suction, or return
to tank mode. Compact rugged, and easy to maintain, these pumps
are ideally suited to close-coupled mounting, or direct mounting
to the motor.
All Series U Round Hub Pumps feature:
- Operate at standard motor speeds, eliminating
the need for pulleys/gear reducers.
- Involute gear design offers excellent suction
characteristics, minimizes noise and reduces internal bypassing.
- Self-lubricating gramix iron bearings.
- Easy to maintain Buna-N lip seals. Installed in
the UniverSeal design for simple and quick replacement, or change
to alternate seal style.
- Optional mounting brackets which are designed
for in-line mounting with standard NEMA frame size motors or
bedplate mounting.
- Optional bearing, rotor and seal materials which
allow effective operation up to 625F and 600 psid.
The Universal Pump Design
combines the innovation of our UniverSeal shaft seal, the rugged
simplicity of Haight’s proven “gear within a 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
- the relief valve assembly can be added at any time, in the
field, with no special tools. The valve can function in either
the return to suction mode, or return to tank mode. Available
with three different tension springs, the relief valve operates
smoothly and effectively over a broad range of setting values.
“Gear within a gear” Internal
gear design - For nearly seventy years, this design has demonstrated
it’s effectiveness in 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.
Our UniverSeal shaft seal
configuration represents a significant advance in gear pump design.
The UniverSeal incorporates standard, easily available seal components
with a readily adaptable pump geometry. The pump can be easily
converted in the field from Lip to Mechanical to Packed Gland
shaft seal type without even disconnecting the piping. Flow direction
in the pump can also be changed without disrupting the attached
piping, or special tools.
All UniverSeal Shaft Seal Pumps features:
- Reduce maintenance
expenses - simple, quick seal changes.
- Less production disruption
and downtime - perform maintenance in place rather than in
the shop..
- Reduce maintenance
inventory - one pump can be adapted to meet many application
requirements.
- Provide future adaptability
- easily change the pump as your needs change.
- Reduce replacement
parts costs, no special custom design parts.
- Interchangeable with
existing Haight pumps without modification.
- Pumps specified with
an integral relief valve can be quicky and easily changed to
perform in either suction return, or tank return mode. The
relief valve can be readily changed to operate in either clockwise
or counterclockwise flow direction.
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