FUEL
SUPPLY
SYSTEMS
Super-XL
Pump
Super-XL Pump
The Simplex Super-XL Pump is a high-tech hydraulic pump
featuring pressure-loaded, self-compensating gears and a mechanical
shaft seal. These precision gears are enclosed by a high strength,
die cast aluminum center section.
The Super-XL Pump is designed for applications where the
pump starts and stops on demand (ie. automatic tank refilling)
and for high pressure applications up to 2500 PSI. Viscosity
range is up to 1000 SSU. Do not use this pump for applications
that are noise sensitive.
The Simplex Super-XL Pump consists of one drive gear shrink
fit on a precision ground and polished drive shaft. This shaft
extends outside the pump to permit coupling to an external prime
mover by means of a standard key way. The second gear being the
driven gear is also shrink fit on a precision ground and polished
driven shaft. Retaining rings installed in grooves provided on
the shaft ensure that the gears will not move axially and a key
keeps the drive gear from moving rapidly.
A lip type shaft seal is provided at the drive shaft to prevent external leakage of pump fluid. The sealing lip in contact with the fluid is spring loaded. Vent passages within the housings and driven shaft communicate pump inlet pressure to the rotary seal area, thus imposing the lowest possible pressure to the rotary seal for extended life.
The phenolic heat shield, backup gasket, and molded rubber seal form chambers behind the steel backed bronze wearplate. These chambers are connected either to inlet or discharge pressure. Discharge pressure, acting within the chambers, axially loads and deflects the wearplate toward the gear faces to take up gear side clearances. This pressure loading on the wearplate increases on the wearplate increases pump efficiency by reducing internal leakage to a minimum, providing longer pump life.
Pump rotation is dependent on proper orientation of the heat shield, backup gasket, and rubber seal in the front cover housing, the center section and rear cover oriented respectively. Pumping action is achieved by connecting the pump drive shaft to a prime mover and rotating the gears away from the inlet port. Rotation causes the gear mesh to increase on the inlet side and decrease on the outlet (pressure) side.
Pressure loaded design Efficient, simple design with few moving parts Exceptionally compact and lightweight Efficient at high pressure operation Resistant to cavitation effects High tolerance to system contamination Reliable under cold weather operation Sleeve bearing construction Multi-fluid compatibility Sales Bulletin |
MODEL |
IN3 (CC/REV.) |
(96.9 Bar) |
(69 Bar) |
(103 Bar) |
(138 Bar) |
(172 Bar) |
|
XL-11 |
(4.29) |
(7.54) |
(7.05) |
(6.78) |
(6.56) |
(6.29) |
|
XL-39 |
(15.44) |
(26.83) |
(26.04) |
(25.66) |
(25.24) |
(24.86) |
|
XL-62 |
(24.14) |
(42.07) |
(40.97) |
(40.55) |
(40.17) |
(39.42) |
|
XL-90 |
(36.5) |
(63.29) |
(62.54) |
(61.78) |
|||
XL-114 |
(54.9) |
(95.89) |
(94.37) |
(93.23) |
(92.48) |
||
