HDU 427/-0 pages

HDU 427/54-108

CJC™ Off-line Fine Filter

CJC™ Product Sheet
APPLICATION

The HDU 427/- series of CJC™ Off-line Fine Filters are used for the maintenance of fluids for power
transmission, lubrication, cooling and quenching.
The HDU 427/54-108 is ideal for removal of degradation products, particles, and water.

FUNCTION

The filter pump draws fluid from the system tank (at
lowest point) and presses it through the filter insert.
From the centre of the inserts the fluid flow through
the filter base and returns to the tank.
The pressure drop over the filter - and consequently
the contaminant absorption of the filter inserts - are
monitored on the pressure gauge on the filter housing.
The filter outlet port is placed in the filter base. The
filtered fluid should be returned to the tank close to
the suction pipe of the main system pump.
Note that the return point preferably should be
non-pressurized. Contact us in case this is not
possible.

THE FILTER PUMP

The CJC™ Fine Filter
HDU 427/108

The filter pump is a gear wheel pump. The electric motor can be supplied for all standard AC and DC voltages.

FILTER INSERT

The CJC™ Filter Inserts consist of several discs bonded together. The material is either cellulose or cotton
linters depending on the fluid to be filtered.

OPTIONS

Preheater
Tank
Drip pan
Control box
• Pressure switch

TECHNICAL DATA
Model HDU:

427/54

Pump flow, per hour (std.)

ltr/gal

427/81

427/108

200 - 8000 / 53 - 2113

Pump type

P/MZ/GP/GRN

Pump inlet pressure, max.

bar/psi

Filter Inserts 27/27

pcs.

Power consumption, aver.

0.5 / 7

kW

8

12

16

0.25 - 2.2

Particle Removal
All CJC™ Filter Inserts have the following
filtration degree:
- 3 μm absolute:
98.7% of all solid particles >3 μm
- 0.8 μm nominal:
50% of all solid particles >0.8 μm
are retained in each pass.
The dirt holding capacity is 32-64 litres of
evenly distributed solids.
Degradation Products
Oxidation products, resin / sludge, and varnish
are retained by the cellulose material, which
will retain appr. 32-64 kgs of oil degradation
products.
Water Removal
The water absorption potential is up to 50%
(i.e. 16,000-32,000 mL H20) of the total contaminant holding capacity.

PSST1002-UK
11.12.2008
Page 1/2

bar/psi

1.8 / 26

Oil temperature, max.*)

FILTRATION ABILITY

Pressure drop, max.

˚C/˚F

80 / 176

Dirt hold. capacity, appr.

ltr/gal

32/8.5

48/12.6

64/16.9

Water absorption capacity

ltr/gal

16/4.2

24/6.3

32/8.5

Dry weight

kg/lb

430/948

490/1080

555/1224

Operating weight, wet

kg/lb

537/1184

645/1422

755/1664

Design pressure, filter

bar/psi

3 / 44

Ambient temperature, max.

˚C/˚F

40/104

*) The standard filters are designed for a max. temp. of 80˚C / 176˚F.
Other conditions, please contact us.

APPLICABLE FILTER INSERTS
Type

Application for

A:

Low flow (small system fluid volumes).

B:

Higher flow (larger system fluid volumes).

F:

Quenching oils. **)

BLA:

Water-based fluids and emulsions.**)

**) Does not hold water permanently.