Series CEH magnetic drive, 35 m³/h, 354 m, 180 °C0 pages

Side Channel Pumps
CEH 1201 ... 6108
CEH 1201/6 ... 6107/6

with magnetic coupling

TECHNICAL DATA
Output:

max. 35 m³/h

Delivery head:

max. 354 m (at 1450 rpm)

Speed:

max. 1800 rpm

Temperature:

max. 180 °C

Casing pressure:

PN 40

Shaft sealing:

without shaft seal
because of magnetic coupling

Flange connections:

DIN 2501 PN 40

Direction of rotation:

anti-clockwise, seen from
the drive on the pump
CEH pump with shell

APPLICATION

CONSTRUCTION

CEH pumps are side channel pumps with NPSH inducer stage
suitable to handle liquids which do not contain solid matters or
abrasive admixtures. The NPSH inducer stage allows the operation
under unfavourable pumping conditions at suction side, also at
positive suction heads lower than 0,5 m.
The special ability of these pumps to handle liquids at the boiling
point has led to a wide field of application when condensate,
distillate, coolant and liquefied gas shall be pumped.
CEH pumps are applied in the chemical and petrochemical
industry, in the pharmaceutical industry, in the plastic and rubber
industry, in the surface finishing and hardening, in the foot,
beverage and tobacco industry and in the air conditioning and
refrigeration engineering.

Casing pressure:

Pumps of the series CEH/6 with retaining sage to guarantee the
min. filling level in the pump are especially applied to handle liquids
under vapour pressure, also from underground tanks.

Construction size 1200 to 6100:
Please note:
Casing pressure = zero head + inlet pressure
Test pressure 52 bar resp. 33 bar

PN 40

Branch positions:
Suction branch arranged axially, discharge branch radially
upwards.
Flanges:
The flanges comply with DIN 2535/PN 40
Flanges according to DIN 2512 with groove and bored to ANSI
150 or 300 as well as to BS table F is possible.
Hydraulics:
First hydraulics, designation of this construction type: A .

DESIGN
Bearings:
Pumps of the series CEH are horizontal, selfpriming side channel
pumps, capable of handling gas along with the medium, in
segmental-type construction, with open vane wheel impeller as well
as pre-arranged centrifugal stage for attaining favourable NPSH
values. The sealing to atmosphere is effected glandless by an
isolation shroud; the driver power is transmitted contactless by a
magnetic coupling. The use of stable permanent magnetic material
ensures the transmission of the nominal torque and given
protection against overload.
On the basis of the compact close coupled design has been
created a pumping unit that is easily to be installed. All IEC
standard motors of the construction type IM B 35 are applicable.
This design permits the operation of the pump without any
additional coupling. Thus the alignment, a source of trouble, can be
omitted.
The pumps of the series CEH/6 are equipped with an additional
retaining stage, behind the centrifugal stage, to prevent the
emptying of the pump during standstill and thus keeping the
selfpriming ability of the pump.

The pump shaft runs in two sleeve bearings of pure silicon
carbide (SiC), lubricated by the pumping medium
The remaining axial forces are absorbed by axial sleeve
bearings.
Optionally available a friction reducing coating of the bushings
to avoid critical operation.
The outer magnet is directly fixed on the motor shaft
consequently the external bearing becomes unnecessary.
Designation of this construction type: .F
Sense of rotation:
Anti-clockwise when seen from the drive on the pump.
Shaft sealing:
Without shaft seals by an isolation shroud Transmission of the
driving moment by a magnetic coupling.
Designation of this construction type: see last page.

The simple construction of the pump allows the assembly or
disassembly without special tools.

133.51325.56.01 E

PUMP TECHNOLOGY CEH P III / 16
05/015