Centrifugal Pumps self-priming, segmental type UEA 4002 . . . 100080 pages

Centrifugal Pumps
self-priming, segmental type
UEA 4002 . . . 10008
133.83201.52.01 E PUMP TECHNOLOGY UEA2
06/97
TECHNICAL DATA
Output: max. 220 m³/h
Head: max. 280 m
Speed: max. 3600 rpm
Temperature: max. 140 °C
Casing pressure: PN 40 up to size 8000
PN 25 from size 10000
Shaft sealing: stuffing box or standard
mechanical seal
Flange connections: DIN 2501 PN 40 resp. PN 25
Sense of rotation: clockwise when looking at the
pump from the drive end
APPLICATION
Centrifugal pumps of the series UEA with NPSH inducer stage are
applied for trouble-free pumping under unfavourable conditions at
suction side. The capability of the pumps in this series to handle
liquids at the boiling point, allows a wide-ranging application when
handling
condensates
liquefied gases
refrigerants
LPG
and boiler feed water.
DESIGN
Horizontal centrifugal pumps of the segmental type with closed
impellers and a suction stage. The suction stage is installed at
discharge side. It is arranged in parallel to the last liquid handling
stage and operates acc. to the sucking-through principle.
The design UEA has an axial inlet with NPSH inducer stage.
The axial thrust is compensated by single-impeller relief. The
remaining axial thrust are compensated by antifriction bearings of
sufficient size.
A hydraulically favourable re-routing is done by means of guiding .
devices in the stage casings. The vertically to the axis divided
casings are sealed by O-rings and the connected through external
casing connection screws.
CONSTRUCTION
Casing pressure:
max. 40 bar up to size 8000 from -25 °C to 120 °C
max. 25 bar up to size 10000 from -25 °C to 120 °C
Pressure stages for higher temperatures as per DIN 2401
Please note:
Technical rules and safety rules.
Casing pressure = zero delivery head + pos. suction pressure
Position of the branches:
Suction branch axially and discharge branch radially
upwards.
Flanges:
At suction and discharge side the flanges correspond to DIN
2535 PN 40 resp. DIN 2534 PN 25.
Flange design with groove to DIN 2512 or bored to ANSI
possible.
Hydraulics:
First Hydraulic with NPSH-impeller 1.Designation of this
design: A.
First Hydraulic with NPSH-impeller 2. Designation of this
construction type: C.
Bearings:
At suction side a liquid surrounded sleeve bearing, at
discharge side grease lubricated inclined ball bearings as per
DIN 628. The designation of this construction:.A
First grease filling for antifriction bearing is made in the factory.
Sense of rotation:
Clockwise when looking at the pump from the drive end.
Shaft sealing:
The shaft can be sealed either by stuffing box or standard
mechanical seal.
Designation 061: Balanced, uncooled stuffing box.
Temperature range: -10 °C to 120 °C
Designation AAE: Uncooled, unbalanced standard single
mechanical seal with internal flushing.
Temperature range: -10 °C to 120 °C
Designation ABE: As AAE, but balanced.
Temperature range: -10 °C to 120 °C
Designation DBU: As ABE, but
temperature range: -25 °C to 140 °C
Special for carburetor and Diesel fuels:
Designation ABC: Uncooled, balanced standard single
mechanical seal with internal flushing.
Temperature range: -10 °C to 120 °C
Special for liquid gas:
Designation DBG: Uncooled, balanced standard single
mechanical seal with internal flushing lower.
Temperature limit: -25 °C