Air breather0 pages
AIR BREATHER/FILTER
The F1LT0N AIR BREATHER/FILTER is a robust, compact and efficient unit designed to allow flow of clean air to and from
closed chambers where balanced atmospheric pressure is required.
Applications
In gearboxes, bearing housings etc., the rotating parts create
pressures which can cause damage to seals, loss of oil and
complete failure. This problem can be eliminated by fitting a
FILTON AIR BREATHER/FILTER.
It is essential that oil in hydraulic systems is free of external
contaminants. A continuous volume change occurs in the
hydraulic reservoir which can draw atmospheric
contaminants into the system. A clean exchange of air is
assured when a FILTON AIR BREATHER/FILTER is fitted.
A similar problem can occur with liquid storage tanks where
the FILTON AIR BREATHER/FILTER can prevent contamination.
Temperature changes can cause pressure and vacuum to
occur in closed machinery. A FILTON AIR BREATHER/FILTER
will eliminate this problem.
Maintenance
The element does not need replacing, it is easily cleaned by
reverse flow.
Periodically check the element for contamination.
Specials
We can vary the materials of construction or the type of
connecting thread if required.
Specification
1. Locking nut - brass
2. Sealing/lock washer - nitrile rubber and spring steel
3. Element - sintered bronze available in 4 grades,
see table below
4. Cover - stainless steel, type 304
5. Body - brass
Flow Capacity
Grade Particle
Reference Retention Size
Micrometres
A 3 to 6
B 15 to 25
C 30 to 40
D 55 to 75
APPROX. FLOW RATE<
R.i/e"
28
R.1/4"
36
113
153
185
170
255
353
R.3/S" R.t/2"+R.3/4"
50 56
395_____555_
516 798
578
1083
RT+R.I1/4"
2166
3333
5250
8500
* cubic centimetres/second for a pressure drop
of 100mm wg: Pro-rata for other pressure drops.
Dimensions
Part No.
14039
14728
14729
14730
14773
14774
14812
D1A
R.1/8"
R.1/4"
R.3/8"
R.1/2"
R.3/4"
R.1"
R.I1/4"
D2
21
24
35
45
51
80
80
L1
37
45
48
62
66
100
100
L2
10
14
14
19
20
24
26
Dimensions in millimetres
B.S.P. taper threads to B.S.21 and I.S.O.R7
When specifying add the element grade letter as a suffix to the Part No.
^^^^^
FILTON LIMITED
CASWELL ROAD, SYDENHAM INDUSTRIAL ESTATE
ROYAL LEAMINGTON SPA CV31 1QF ENGLAND
Telephone (01926) 423191 Telefax (01926) 450610
PRINTED IN ENGLAND BY COVENTRY PRINTERS
"