Series CEH-X, 7.5 m³/h, 322 m, 180 °C0 pages

SIHIprime - Side Channel Pumps
Self-priming, segmental type with very low NPSH

CEH-X 1201 … 3608

TECHICAL DATA
Capacity:

from 0.4 up to 7.5 m³/h

Delivery head:

from 10 up to 322 m

Speed:

1450 rpm (max. 1800 rpm)

Temperature:

max. 120 °C
max. 180 °C for high temperature design
(higher temperatures on request)

Casing pressure:

PN 40

Shaft sealing:

mechanical seal

Flange connections:

DIN 2501 / PN 40

Direction of rotation:

anti-clockwise
(when seen from the drive end)

Protection classification:

Ex II2 Gc T1-T5

APPLICATION
The Sterling SIHI CEH-X pump is a self-priming side channel pump
capable of handling gas along with the medium and operates at a
low noise level.
The CEH-X pumps are used for problem-free pumping of clean
liquids at unfavourable suction side conditions. They are also very
suitable for positive suction heads below 0.5 m.
Different material possibilities with uniform dimensions and
performance characteristics as well as the standard exchangeable
components are used for the construction.
The CEH-X pumps are particularly recommendable for applications
in the pharmaceutical, chemical or petrochemical market as well as
in the plastic or oil industry. Because of its low NPSH and positive
suction head the CEH-X is very suitable for the pumping of
liquefied gases and liquids under vapour pressure like condensate,
refrigerant, boiler feed or LPG.

CONSTRUCTION
Casing pressure
Maximum 40 bar from -40 °C up to +120 °C. Maximum 32 bar from
+120 °C up to +180 °C.
Pressure stages for temperature as per DIN EN 1333.
Please observe
Technical rules and safety regulations:
Casing pressure = inlet pressure + delivery head at minimum pump
capacity.

Position of branches
Axial suction branch, discharge branch points radially upwards.

Flanges
The CEH-X pumps have a retaining stage, combined with the low
NPSH stage, to avoid the dry running by controlling the liquid level
in the pump. This design is especially developed for the handling of
liquids under vapour pressure or when pumping from underground
tanks. The CEH-X pumps are used for bottom off-loading of liquids
under vapour pressure.

Flanges in accordance with DIN EN 1092-2 / PN 40.
Flange design as per DIN 2512 with groove or drilled according to
ANSI 150 or 300 lbs is basically possible.

Bearing
DESIGN

One grease lubricated, greased for life, ball bearing according to
DIN 625 and one liquid surrounded sleeve bearing.

The pumps of the SIHIprime range are side channel pumps having
segmental type construction. The construction of the CEH-X pump
is a centrifugal combined system. This combination pump is suited
with a centrifugal stage in serial connection before the side channel
stages to obtain a more favourable NPSH.

Rotation direction

The program comprises, currently, 3 sizes (1200, 3100 and 3600)
each with 1-8 stages. The existing material design allows an
optimum rating for the respectively desired performance range and
the pumping medium.
The applied hydraulic components are from our modular side
channel system (interchangeability of parts).

133.51302.52.01 E

Anti-clockwise, when looking from the drive end.

Shaft sealing
The shaft is sealed by a mechanical seal according to DIN EN
12756, with quench connection.
The shaft sealing is also available in a design suitable for heating
or cooling of the mechanical seal and a double mechanical seal
(back-to-back as well as tandem) design is possible on request.

PUMP TECHNOLOGY CEH-X PIII/11
05/2015