Volute Casing Pumps Self priming ULN 32-125... 125-2500 pages

Volute Casing Pumps
self-priming
ULN 32-125 . . . 125-250
PUMP TECHNOLOGY ULN P III/1
133.85210.52.01 E 02/92
TECHNICAL DATA
Output: max. 300 m³/h
Head: max. 95 m
Suction head: max. 5 m (cold water)
Speed: max. 3000 rpm
Temperature: max. 120 °C
Casing pressure: PN 16/101)
Shaft sealing: standard mechanical seal
Flange connections: DIN 2501 PN 16101)
Sense of rotation: clockwise when seen on the
pump from the drive
APPLICATION
The self-priming volute casing pumps according to DIN 24255 of
the series ULN are applied when it is necessary to suck in and to
handle without problems and automatically, pure resp. turbid not
aggressive liquids which do not contain any solids. So they are
suitable for:
drinking water supply for communities
general water supply in agriculture, business and industry
irrigation and drainage
sprinkling
pumping of condensate
charge and discharge of fuels and oils
Please observe: the max. geodetical suction height amounts
to 5 m, provided that the necessary pressure
corresponding to NPSH is not exceeded.
DESIGN
Horizontal, self-priming single stage volume casing pumps with
dimensions and nominal outputs accord. to DIN 24255/EN 733 in
back pull out construction.
The back pull out construction allows the demounting of the
complete bearing unit towards the drive side so that it is not
necessary to detach the pump casing out of the pipings. On applying
a coupling with dismounting piece it will be superfluous to
detach the motor.
The programme consists of 27 sizes with 4 suction sizes and
needs only 2 shaft units on applying the mechanical assembly
technique.
Within a shaft unit, shaft sealing, impeller fastening and bearing
cover are exchangeable.
The side channel suction stage is arranged at the drive side of the
volute casing. It is connected in parallel to the liquid pumping
stage and works according to the sucking through principle.
1) up from construction size 100-200 10 bar
CONSTRUCTION
Casing pressure:
Max. 16/101) bar from -40 °C to + 120 °C
Intermediate values can be interpolated.
Please observe:
Technical rules and safety regulations.
Casing pressure = positive suction pressure + zero delivery
head
Position of branches:
Suction branch directed axially, discharge branch directed
radially upwards.
Flanges:
The flanges correspond to DIN 2533/2532 PN 16/101) .
Flange design drilled accord. to ANSI 150 is possible.
Speed:
n = 1450 rpm; Designation of this construction type: A.
n = 2900 rpm; Designation of this construction type: B.
Bearing:
Two greased antifriction bearings. First grease filling will be
made in the factory.. Designation of this construction type: .B
As special design oil lubrification is possible.
Sense of rotation:
Clockwise when seen on the pump from the drive.
Shaft sealing:
The shaft sealing is made by a standard mechanical seal.
Designation AAE: uncooled, not balanced single standard
mechanical seal, flushed from internal
source, O-rings Perbunan.
Temperature range: -40 °C up to +120 °C
Designation AA1: as per AAE, but O-rings Viton.
Temperature range: -40 °C up to +140 °C