Washable Pre Panel Filter
Robust construction
Maximum effective media area
Sizes to suit most applications
Specifications:
The filter frame will be of "U"-Channel formation. Material shall be 0.5mm thick galvanised steel. The edges shall be doubled returned for extra strength and so provide a smooth edge thus preventing injury to personnel. The filter shall be able to withstand at least 6 cleanings under normal conditions by either water washing or air cleaning. The media shall be supported on both sides by galvanised wire grid. Thus Ensuring stability and pleats remaining open to allow maximum dust holding and ease of cleaning.
Application:
The WP77 cleanable extended surface panel filter range was locally developed by FIBATRON as a one-stage filter to eliminate the use of low efficiency pad or roll type filters as well as certain low efficiency pocket filters. WP77 filters are used extensively in office blocks, hotels factories research institutions and in general ventilation applications. WP77 filters are locally manufactured in various sizes and are easily fitted into most type if filter installations. The Type S slide-on range of retainer clips are available from FIBATRON for easy upgrading of existing installations. As no holes need to be drilled, fitting is done within seconds.
Installation:
WP77 cleanable extended surface filters are widely used in built-up flat or "V" shaped filter banks as well as in side-access systems which have a 25mm, 50mm, or 100mm standard slide-in filter track.
Nominal Standard Sizes -mm
Rated Air-Flow Cubic Meter/Hour

Resistance

P.A. - Initial

Resistance

P.A. - Final
400 x 500 x 50
1850
78
250
400x 655 x 50
2300
78
250
500 x 500 x 50
2300
78
250
500 x 625 x 50
2900
78
250
600 x 600 x 50
3400
78
250
Summary of test results: 600x600x50 (SABS)
Arrestance
90%
Efficiency
< 20%
Differential Pressure at Rated Flow
78 P.A
Final recommended differential pressure
250 P.A
Dust holding capacity
115 gms
South African Bureau of Standards Summary of test report no. 861/80390/B8 and these tests included the following:
Initial atmospheric dust spot efficiency
Average synthetic dust arrestance
Dust holding capacity
Resistance at various flow rates
Resistance VS dust fed
 

Manufactured in 25, 50 & 100mm pleat depths—special sizes are produced when required.

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The following sizes are available for the washable panel filter range;

WP77 - YELLOW MEDIA

Product code
Pleats
Length (mm)
Width (mm)
Depth (mm)
WP77481
17
391
391
48
WP77482
22
391
492
48
WP77483
26
391
594
48
WP77484
28
391
619
48
WP77485
22
492
492
48
WP77486
27
492
594
48
WP77487
28
492
619
48
WP77488-TPA Approved cleanable panel filter
27
594
594
48
WP77489
13
594
289
48
WP77985
20
492
492
98
WP77988
25
594
594
98