SPECIALIST EXHAUST
PRODUCTS
2010 EDITION
Company Profile
Western Tydens has been producing Diesel Engine Exhaust Systems at our factory in
Ivybridge, Devon since 1984. Although best known for our Spark Arresters we also offer
exhaust Purifiers, Cleaners and Silencers and all the associated fitting Accessories.
We specialist in bespoke manufacturing, one offs and small batch quantities.
This brochure outlines our standard products and capabilities; however as a lot of our
production is non standard, if you do not find what you are looking for just give us a call and
weʼll try and help, if we canʼt, weʼll know someone who can!
If you need a special exhaust ... weʼll make you one!
Contents
Exhaust Pipe Work
3-5
Accessories
6-13
Silencers
14-15
Spark Arresters
16-23
Catalytic Converters
24-27
Diesel Particulate Filters
28-31
Western Tydens is a Quality assessed Company to ISO9001-2000
2
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Rigid Exhaust Pipe Tubing
Thin Wall Exhaust piping nominal 16 gauge (1.5mm)
Available in mild or stainless steel
Supplied by the metre or cut to length
Ends can be swelled and slotted
Maximum length 3 metres
Standard sizes available (OD)
1.0” (26mm)
2.25” (57mm)
4.0” (102mm)
1.25” (32mm)
2.50” (64mm)
4.5” (115mm)
1.50” (38mm) 1.75” (45mm)
2.75” (70mm) 3.00” (77mm)
5.00” (128mm)
2.00” (51mm)
3.5”( 89mm)
Mild steel pipe sizes also available as ID
*Please note
Order Part Ref. SAPIPE-XXX
When ordering a standard pipe please substitute the XXX at the end
of the part number for the diameter of the pipe size you require
Flexible Exhaust Tubing
Gas tight flexible pipe
Ideal for in line fixing to absorb engine vibration
Stainless steel for longevity
Supplied by the metre or cut to length
Polylock interlocking style
Standard sizes available (ID)
1.25” (32mm)
2.50” (64mm)
4.5” (115mm)
1.50” (38mm) 1.75” (45mm) 2.00” (51mm)
2.75” (70mm) 3.00” (77mm) 3.5”( 89mm)
5.00” (128mm)
2.25” (57mm)
4.0” (102mm)
*Please note
Order Part Ref. SAFLEX-XXX
When ordering a flexible pipe please substitute the XXX at the end of the part number
for the diameter of the pipe size you require
Flexible exhaust tubing can be supplied welded to slotted boss for adaption to existing pipes.
For more details consult us with your requirements. ( For Flex clamps - see page 7 )
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3
Exhaust Pipework
We can manufacture exhaust pipework to your requirements.
Mild Steel or Stainless, 16 gauge (1.5mm).
To a sample pattern or drawing, new build or replacement part.
Our pipe bending equipment allows us to produce virtually any angle of bends in pipes
up to 4 inch diameter.
Swept bends, swelled and slotted pipe ends for overlapping joints.
We can fit standard engine flanges, or cut flanges to mate with existing layouts.
Vertical stacks and polished tail pipes.
Consult us with your requirements.
4
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Welding Elbows
Tight Radius
90 degree bends
Thin 1.5mm steel wall
Fully welded pressed bends
Radius approximately 1x diameter
Made from mild steel or stainless steel
The tightest bend available when compared to drawn bends
We can also supply bends in aluminium or supplied cut to alternative angles
Nominal OD
Inch mm
D
Part Number
Radius
R (mm)
Thickness
Mild Steel
Stainless Steel
(mm)
1
26
27
1.5
SAELBOW-1.0
SAELBOW-1.0-S
11/4
32
34
1.5
SAELBOW-1.25
SAELBOW-1.25-S
11/2
39
42
1.5
SAELBOW-1.5
SAELBOW-1.5-S
13/4
44
48
1.5
SAELBOW-1.75
SAELBOW-1.75-S
2
50
52
1.5
SAELBOW-2.0
SAELBOW-2.0-S
21/4
58
58
1.5
SAELBOW-2.25
SAELBOW-2.25-S
21/2
64
63
1.5
SAELBOW-2.5
SAELBOW-2.5-S
23/4
70
62
1.5
SAELBOW-2.75
SAELBOW-2.75-S
3
76
63
1.5
SAELBOW-3.0
SAELBOW-3.0-S
31/2
87
76
1.5
SAELBOW-3.5
SAELBOW-3.5-S
4
101
85
1.5
SAELBOW-4.0
SAELBOW-4.0-S
41/2
113
96
1.5
SAELBOW-4.5
SAELBOW-4.5-S
5
127
110
2
SAELBOW-5.0
SAELBOW-5.0-S
6
152
132
2
SAELBOW-6.0
SAELBOW-6.0-S
D
R
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5
Exhaust Clamps
Saddle Clamps
Standard U Bolt saddle clamps
Mild steel, zinc plated
Nominal Pipe Size
Inch
mm
mm
1.0
25
28
SACLAMP28
1.25
32
35
SACLAMP35
1.5
38
42
SACLAMP42
1.75
45
48
SACLAMP48
2
51
54
SACLAMP54
2.25
57
60
SACLAMP60
2.5
64
65
SACLAMP65
2.75
70
70
SACLAMP70
3
77
80
SACLAMP80
SACLAMP90
3.5
89
90
105
SACLAMP105
4.5
115
128
SACLAMP128
5
128
130
SACLAMP130
Nominal Pipe Size
High clamping force
Uniform clamping
All stainless steel construction
Inch
mm
Part Number
1.0
25
28
PCLAMP28
1.25
32
36
PCLAMP36
1.5
38
42
PCLAMP42
1.75
45
48
PCLAMP48
2
51
54
PCLAMP54
2.25
57
60
PCLAMP60
2.5
64
65
PCLAMP65
2.75
70
70
PCLAMP70
3
77
80
PCLAMP80
PCLAMP90
89
90
102
105
PCLAMP105
4.5
115
128
PCLAMP128
5
128
130
PCLAMP130
4
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Clamp Size
mm
3.5
6
Part Number
102
4
Band Clamps
Clamp Size
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Pipe Joint Clamps
Simple effective gas tight way to join two equal sized exhaust pipes.
Butt type
join two solid (OD-OD) pipes.
Flex clamps
stepped type, allow easy joining of polylock flexible pipe to rigid pipe.
They can also be used to tighten and seal overlapping joints.
All stainless steel construction.
Nominal Pipe Size
Inch
Flex
Butt
Flex
mm
2
51
BCLAMP-2.0
FCLAMP-2.0
2.5
64
BCLAMP-2.5
FCLAMP-2.5
3
77
BCLAMP-3.0
FCLAMP-3.0
3.5
89
BCLAMP-3.5
FCLAMP-3.5
4
102
BCLAMP-4.0
FCLAMP-4.0
5
128
BCLAMP-5.0
FCLAMP-5.0
Butt
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7
Pipe to Pipe Adaptors
Any size, shape, angle or configuration of pipe sizes and sex can be produced in either
mild steel or stainless.
Our most common arrangements are as shown.
For other arrangements consult us.
ID to ID
Part Code
ADFF-00-(xx)
(xx specify pipe sizes and
material type)
ID to OD
Part Code
ADMF-00-(xx)
(xx specify pipe sizes and
material type)
OD to OD
Part Code
ADMM-00-(xx)
(xx specify pipe sizes and
material type)
Universal
Adaptor
8
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Part Code
Type A adaptor
Can be cut down to size
from23/4 to 13/4.
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Pipe to Pipe Adaptors
ID to ID 90 degree
Part Code
ADFF-90-(xx)
(xx specify pipe sizes and
material type)
ID to OD 90 degree
Part Code
ADMF-90-(xx)
(xx specify pipe sizes and
material type)
OD to OD 90 degree
Part Code
ADMM-90-(xx)
(xx specify pipe sizes and
material type)
ID to ID 45 degree
Part Code
ADFF-45-(xx)
(xx specify pipe sizes and
material type)
ID to OD 45 degree
Part Code
ADMF-45-(xx)
(xx specify pipe sizes and
material type)
OD to OD 45 degree
Part Code
ADMM-45-(xx)
(xx specify pipe sizes and
material type)
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9
Pipe to Pipe Adaptors
T Adaptor
Part Code
ADT-MMM-(xx)
(xx specify pipe sizes and
material type)
T Adaptor
Part Code
ADT-FFF-(xx)
(xx specify pipe sizes and
material type)
Y Splitter
Part Code
ADY-MMM-(xx)
(xx specify pipe sizes and
material type)
Y Splitter
Part Code
ADY-FFF-(xx)
(xx specify pipe sizes and
material type)
10
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Rain Caps
Counter balanced vane type Raincaps
Single bolt clamp fixing
Painted mild steel
Non rusting (wonʼt seize) stainless steel
Pipe Size
Inch
mm
Mild Steel
Stainless Steel
Part No
Part No
1.5
28
SACAP-1.5
SACAP-1.5-S
2
51
SACAP-2
SACAP-2-S
2.5
64
SACAP-2.5
SACAP-2.5-S
2.75
70
SACAP-2.75
SACAP-2.75-S
3
77
SACAP-3
SACAP-3-S
3.5
89
SACAP-3.5
SACAP-3.5-S
4
102
SACAP-4
SACAP-4-S
4.5
115
SACAP-4.5
SACAP-4.5-S
5
128
SACAP-15
SACAP-5-S
Support Strap Brackets
For supporting Silencers, Spark Arresters or Catalysts
Standard clamps are round, other forms are available
Painted mild steel
21/2mm material
Diameter
Inch
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Width
Part No.
92
30
STRAP-92
5
125
30
STRAP-125
6
155
45
STRAP-155
3.5
Other forms and sizes available to
order, consult us with your
requirements.
mm
8
200
45
STRAP-200
9.25
235
50
STRAP-235
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11
Exhaust Accessories
Flanges
Our Laser and Waterjet cutting expertise allows us to reproduce most types of standard
and custom flanges in any shape size or thickness, in mild steel or stainless.
We have an extensive data base of existing engine makers flanges which can be
reproduced.
We can also supply threaded pipe ends (M or F).
Flanges can be welded to pipework or to the
appropriate exhaust box.
Consult us with your requirements.
Rubber Mounting Hangers
Standard bobbin type, designed to absorb vibration in the exhaust system.
Size
Part No
M8
M10
RM8
RM10
Flexible Joints
Used in an exhaust line to take up engine vibration and help
protect system from fatigue failure.
Wire braided for longevity and strength. Standard ends are ID.
Custom sizes, lengths and pipe ends available.
Consult us with your requirements.
Diameter
mm
12
Length
Part No.
2
200
ILOK-2
2 1/2
250
ILOK-2.5
3
250
ILOK-3
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Exhaust Accessories
Heat Shields
We supply protective heat shields to fit onto existing products, or attached to
silencers spark arresters etc.
Various hole patterns, standard is 6mm holes. Mild or stainless.
Laser cut named shields featuring company name, in stainless.
Easy retrofit system using secure stainless steel snap bands.
Consult us with your requirements.
Exhaust Wrap
Insulation wrap that gives
good heat protection from
hot pipes when wrapped
around pipework.
Secured in place with wire
fastening.
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13
Silencers
With many years experience in producing spark arresters and catalytic converters,
we can also design and build general purpose silencers for light industrial
equipment and machinery.
Western Tydens silencers are constructed using absorption and reflective techniques.
We can produce virtually any silencer to customerʼs drawings, or from a pattern.
Round or Oval
Units can be manufactured from mild steel or stainless with pipe sizes from 1” to 5”
diameters. We specialise in one offs and small batch quantities. Can be supplied fitted
with heat shield. Select from our standard range or consult us for more information.
Typical applications include generators, tractors, forklifts, vintage vehicles, compressors
and marine applications.
14
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Standard Silencer Range
Enhanced performance absorption silencers
Suitable for diesel engines
Low back pressure
Mild steel or stainless
Slip jointed ends as standard (ID)
Pipe Size
A
B
Pipe Size Range
Mild
Stainless
Diameter D
Part No.
Part No.
480
336
1” - 1.75”
93
S90-xx
S90S-xx
645
520
1.5” - 2.5”
127
S125-xx
S125S-xx
850
710
2.25” - 3”
153
S150-xx
S150S-xx
865
733
3” - 4”
202
S200-xx
S200S-xx
1320
1168
4” - 5”
233
S235-xx
S235S-xx
ØD
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B
A
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15
Spark Arresters
Tested and approved to the highest standards
ATEX Certified Products
16
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Western Tydens
QUALITY APPROVED
Western Tydens Spark Arresters are designed specifically for preventing the risk of fire, due to the
ignition of flammable materials, caused by spark emission from the exhausts of internal combustion
engines.
The risk of fire caused by exhaust sparks is so high that access to many sites is barred unless engines
are fitted with spark arresters, and many countries have legislation to this effect. The risk is greatest
with diesel engines, where carbon can build-up and be ignited. The high ratio of oxygen which is
present in the exhaust pipe (when the engine goes off load) maintains the ignition of partially burnt
carbon particles which are then discharged as highly dangerous sparks.
Efficient Design
Western Tydens Spark Arresters are designed on the centrifugal principle, which has the effect
of spinning the live carbon particles in the exhaust gas at high velocity on the outer casing, and
retaining them until they have lost energy, rending them inert before discharge.
Most Western Tydens Spark Arresters can replace an existing silencer. They will maintain
sufficient noise attenuation for normal industrial use, with no significant increase in back
pressure. Where further noise attenuation is required, the units can be fitted in series with a
normal silencer. Alternatively, simple add-on units are available for temporary installation.
Low Maintenance
Western Tydens spark arresters are of a non blocking design, so carbon build-up will not
affect back pressure. Apart from routine visual safety checks there is usually no need to clean
them.
ATEX Tested and Approved
All Western Tydens Spark Arresters have been stringently tested for their spark arresting
abilities. Both the Primary and Secondary ranges have been independently tested by SIRA to
EN1834 and when made from 316 stainless steel comply with the requirements of the EUʼs
ATEX Directive. Each spark arrester carries an approval plate with the appropriate ATEX and
CE markings and is supplied with a Certificate of Conformity. (Special installation requirements
may be required for different ranges. Please consult us).
Wide Range
Western Tydens Spark Arresters come in three basic ranges, offering a standard variety of
shapes and sizes for engines up to 500hp (per exhaust bank). We can also design and
manufacture products to directly replace existing silencer/exhaust installations.
Product Sizing
Correct unit should be identified from the engine power rating in Horse Power (KW) Measure
and specify the correct pipe size to fit the existing exhaust line. In general a larger unit will give
a lower back pressure
Construction
Stainless Steel units are from high grade 316 as specified by ATEX. Mild steel units are
finished in heat resistant black paint and have stainless steel internal parts designed as a fail
safe to outlast the outer case.
Note:
Spark Arresters are a safety device and the use of the correct product and proper installation is
important and should be treated seriously.
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17
Spark Arresters
PRIMARY RANGE
Designed to replace existing exhaust muffler
For permanent installations
Highly efficient twin single centrifuge design
Wide model range
Can be mounted vertically or horizontally
Slotted inlet and outlet pipes
Maintenance free and good silencing
Supplied with Certificate of Conformity
Stainless steel versions are ATEX approved and certified
*Please note When ordering a Western Tydens Spark Arrester
please specify material type and pipe size
We manufacture Spark Arresters in standard inlet pipe sizes listed as follows:
1.0” (26mm) 1.25” (32mm) 1.50” (38mm) 1.75” (45mm) 2.00” (51mm) 2.25” (57mm)
2.50” (64mm) 2.75” (70mm) 3.00” (77mm) 3.5”( 89mm) 4.0” (102mm) 4.5” (115mm)
5.00” (128mm) 6.00” (153mm)
Normal sizes are internal diameter ID. Non standard pipe sizes available.
Alternative inlet/outlet arrangements
All Spark Arresters can be supplied with a 90 degree bend on the pipe ends.
If you would like to discuss your requirements in detail prior to ordering one of our
products or would like technical advice then please do not hesitate to contact us.
N.B. we can also supply fitting accessories and pipework.
18
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19
.
-
-
-
-
75-120
110-160
140-200
175-250
215-300
275-325
300-400
10-45
25-80
25-90
50-100
75-150
120-180
175-250
225-300
260-350
300-400
350-500
Sizes are nominal for guidance
Painted Mild Steel or Stainless
Horse Power (HP) = 0.75KW
-
10-45
ENGINE POWER RANGE
N/A
TURBO
H.P.
H.P.
PRIMARY RANGE DATA
1120
1320
1320
1110
850
850
850
765
650
465
570
490
OVERALL
LENGTH A
mm
Primary Range Spark Arresters
900
1110
1110
910
665
665
665
585
460
275
380
305
BARREL
LENGTH B
mm
4.00-6.00
4.50-5.00
4.00-5.00
4.00-4.50
3.00-4.00
3.00-4.00
2.00-3.50
2.00-3.00
2.00-2.75
1.50-2.50
1.50-2.50
1.25-2.00
AVAILABLE
PIPE RANGE C
Inches
233
233
233
203
203
153
153
153
127
153
127
92
BARREL
DIAMETER D
mm
13
16.5
16
11
9
5.5
5.5
5
3.3
3
3
2
WEIGHT
Kg
LFG 230S
TGS 2L 235 S
TGS 2L 235 T
TGS 2L 200 T
TGS 2L 200
TGS 2L 150 M
TGS 2L 150 T
TGS 2L 150
TGS 2L 125
TGS 2L 155
TGS 2L 127
TGS A30L
PART NUMBER
Spark Arresters
SMALL ENGINES
Designed for small engines
Suitable for single cylinder engines
Lightweight, centrifuge design
Modest silencing
A
Engine Power Range
HP
0-10
A
B
C
D
Weight
Material
KW
mm
mm
Inlet pipe
Sizes Inches
mm
kg
steel type
0-7.5
238
100
1-00 - 1.50
150
0.7
mild steel
Part No.
TGL 150
*Please note
When ordering a Western Tydens Spark Arrester please specify inlet pipe size you
require.
Available in standard inlet pipe sizes listed as follows:
1.0” (26mm) 1.125” (29mm)1.25” (32mm) 1.50” (38mm)
If you would like to discuss your requirements in detail prior to ordering one of our products or would
like technical advice then please do not hesitate to contact us. N.B. we can also supply fitting
accessories and pipework.
20
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Spark Arresters
SECONDARY RANGE - ADD ON UNITS
Designed to clamp onto existing exhaust systems
For temporary or permanent installations
Efficient single centrifuge design
Low back pressure
Can be mounted vertically or horizontally
Compact size
Maintenance free
Slotted ID inlet (fixed OD outlet)
Supplied with fitting clamp
Supplied with Certificate of Conformity
Stainless steel versions are ATEX approved and Certified
Engine Power Range
A
B
C
D
E
Weight
KW
mm
mm
Inlet pipe sizes (ins)
mm
mm
kg
5-25
4-20
320
160
1-25 - 1.75
92
1.5
1.5
TGS 1L 92
20-45
15-34
335
160
1-50 - 2.25
125
1.5
2.0
TGS 1L 125
30-60
24-45
365
182
1-75 - 2.50
152
1.75
2.4
TGS 1L 152
40-100
30-75
380
175
2-00 - 3.00
205
2.5
3.5
TGS 1L 205
75-150
55-110
430
200
2-00 - 3.00
235
3.0
4.5
TGS 1L 235
HP
Part No.
*Please note When ordering a Western Tydens Spark Arrester
please specify material type and pipe size
We manufacture Spark Arresters in standard inlet pipe sizes listed as follows:
1.0” (26mm) 1.25” (32mm) 1.50” (38mm) 1.75” (45mm) 2.00” (51mm) 2.25” (57mm)
2.50” (64mm) 2.75” (70mm) 3.00” (77mm)
Non standard sizes on request
Alternative Outlet
All Spark Arresters can be supplied with a 90 degree bend on the output pipe.
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21
Spark Arresters
SLIMLINE SILENCER TYPE
Ideal for vertical exhaust stacks
Efficient twin centrifuge design
Good silencing, can replace silencer
Can be fitted with a heat shield guard
Certified ATEX
Engine Power Range
HP
30-80
A
B
C
D
Weight
KW
mm
mm
Inlet pipe sizes (inches)
mm
kg
22-60
680
500
1-50 - 2.50
92
2.5
Part No.
LFG 100 / 90
COMPACT SILENCER TYPE
Ideal silencer replacement for limited space
Efficient twin centrifuge design
Good silencing, use with or without silencer
Certified ATEX
Engine Power Range
HP
25-80
A
B
C
D
Weight
KW
mm
mm
Inlet pipe sizes (inches)
mm
kg
18-60
465
275
1-50 - 2.50
153
2.5
Part No.
TGS 2L 155
*Please note
When ordering a Western Tydens Spark Arrester please specify material and pipe
sizes required.
22
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Spark Arresters
BESPOKE DESIGNS
Based around our existing standard designs, spark arresters can be manufactured to
customerʼs designs, to enable easy form and fit replacement of existing silencers and other
exhaust components.
Different sizes,shapes, round, oval or square with power ranges from 1 to 500 horse power
per exhaust.
For confined space we can produce standard models with side inlet or outlets.
Flanges, inlet and outlet pipes can be fitted with flanges.
Support brackets, fitted to enable the units to be securely mounted.
Heat shields, any unit can be fitted with a protective perforated heat shield.
Special applications, units can be combined with a catalytic converter or
equipped with extra silencing.
To discuss your requirements in more detail please do not hesitate to contact us.
JCB 3CX
Tel: +44
23
Exhaust Purifiers and Cleaners
Catalytic Converters
Particulate Filters
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Catalytic Converters
FOR DIESEL ENGINES
Diesel Oxidisation Catalyst (DOC)
Diesel Exhaust Purifiers, from Engine Control Systems, consist of either a ceramic or a metallic
precious metal substrate coated with advanced precious metal catalyst washcoat and are packaged in
a stainless steel housing. These purifiers oxidise hazardous exhaust gases, Carbon Monoxide and
Hydrocarbons to form Carbon Dioxide and Water. The ceramic series also have an effect on reducing
particulate emissions.
Fitting a two way catalytic converter will greatly reduce the toxic effects of diesel exhaust emissions
and the associated health problems caused, and will eliminate the unpleasant smell associated with
diesel exhaust. It is a vital element when using an engine in a confined space.
% level
100
Typical Reduction in Polutants
when (Ceramic) Catalyst is
fitted.
80
60
40
20
With Purifier
Without Purifier
0
CO
HO
Particulate
The temperature of the exhaust gas will determine the effectiveness of the catalyst in reducing the
CO and HC. In general catalysts are more efficient at higher exhaust temperatures and should be
mounted as close to the engine as possible.
100
% Reductions
CO
HC
80
60
40
20
0
200
Typical Performance
for a Metallic Substrate
225
250
275
300
325
350
375
400
Both types of purifier are designed to be quickly and easily mounted in the exhaust line, as close to
the engine manifold as possible. When fitted to a well maintained engine they are virtually maintenance
free.
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25
Catalytic Converters
We offer two ranges of catalysts, Ceramic, which offer the best purification over a wider
temperature range and a reduction of particulate, or Metallic which are a more rugged
construction where vibration and shock maybe an issue. The catalyst should be installed
as close to the engine as possible for maximum heat transfer either with an in line unit, or
as a muffler replacement.
For optimum performance the correct sized catalyst must be used. For simplification with
sizing the engine air intake figure is used, if the engine manufacturers data is not available
use the following calculation, but note a larger model will provide better pollutant reduction
and lower back pressure.
Engine Intake air flow (m3 / Hr) = Engine displacement (litres) x maximum RPM x C
Where
C = 0.03
C = 0.05
C = 0.06
For normally aspirated engines
For turbo charged engines
For turbo charged with aftercooler engines
Muffler Conversions
Standard in line units are often unsuitable due to space restrictions, for these applications
custom designed units are available as direct replacements for existing silencers, send us a
drawing or some photos.
We are often able to convert existing silencers to incorporate the DOC. Simply remove the
existing silencer and send it to us and we will either build in the cat or make a new one, this
ensures easy trouble free installation.
If you would like to discuss your requirements in details prior to ordering one of our products or would like
technical advice then please do not hesitate to contact us. N.B. we can also supply fitting accessories and
pipework.
26
Tel: +44 (0)1752 891360
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Catalytic Converters
IN LINE UNITS
Maximum oxidation action eliminates carbon monoxide and hydrocarbons
Unique zeolite washcoat and precious metal catalyst
AZ Series Ceramic Substrate
Particulate reduction action
Operates over wide temperature range.
Low back pressure, non blocking
Ideal for use in confined spaces
Helps achieve Health & Safety requirements
The AZ range will also significantly reduce particulate emissions by up to 35% due to the superior oxidising effect on
soluble organic particulates. The AZ purifiers has been tested to ISO 8178 by the the US EPA.
Product Size
A
B
C
D
Weight
Part No.
Air Intake (M3/H)
mm
mm
Inlet pipe sizes (inches)
mm
kg
100-200
325
122
1-50 - 2-00
130
1
AZ24
200-300
340
131
1-50 - 3.50
155
2
AZ25
255-375
355
165
2-00 - 4.00
155
2
AZ26
340-610
360
140
3.00 - 4.00
200
3
AZ27
530-815
410
191
4.00 - 5.00
200
3
AZ28
Part No.
DZ Series Metallic Substrate
Basic oxidation action to reduce CO and HCʼs
Rugged construction for tough environments
Trouble and maintenance free
In line stainless steel unit
Compact size
Low back pressure, non blocking
Product Size
Air Intake (M3/H)
A
B
C
D
Weight
mm
mm
Inlet pipe sizes (inches)
mm
kg
50-120
240
100
1-00 - 2.00
95
2
DZ40
110-205
280
100
1.50 - 2.50
125
2
DZ50
195-320
280
100
2.00 - 3.00
155
2
DZ60
315-465
280
100
2.00 - 4.00
155
3
DZ70
460-635
290
100
3.00 - 5.00
205
3
DZ80
630-920
290
100
4-00 - 5.50
235
3
DZ10
910-1360
290
100
4-00 - 6.00
265
4
DZ12
1350-1720
290
100
5-00 - 6.00
300
4
DZ14
1700-2745
300
100
5-00 - 6.00
375
5
DZ16
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27
Partial Flow Filters
A new generation filter which sits mid way between a Catalytic Converter (DOC) and a
Diesel Particulate Filter. Although not as thorough as a DPF they offer good cleaning with
lower price easy installation and simple operation.
The partial flow, comprises a series of wound substrates, similar to those found in a
Catalyst, which traps the soot and oxides it due to the catalytic coatings, effectively
removing up to 60% of the particulate, and nano particulate matter. It is installed and
operates as a conventional catalyst.
The partial flow filter has the advantage over a wall flow filter in that it offers lower back
pressure, cannot clog and is non-blocking, it is maintenance free.
The substrate is usually built into the silencer and so is a direct replacement for the existing
box, thus ensuring easy installation.
Reduction rates of CO (90%+)
HC-odours (90%+)
Particulate (40-60%).
Partial Flow Filters
Engine Power
HP
Filter
Diameter
Filter
Length
Part No.
Type
45
102
400
PFF05
65
127
400
PFF06
80
154
400
PFF07
120
178
400
PFF08
150
217
400
PFF10
250
259
400
PFF12
300
290
400
PFF14
350
315
400
PFF15
NB: As with most PM filters temperature of >250o are required and fuel must have a
sulphur content of less than 500ppn.
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Tel: +44 (0)1752 891360
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Diesel Particulate Filters (DPF)
In addition to the toxic gases in the exhaust stream (eg.CO) which are removed via the
catalytic converter, diesel exhaust contains a large amount of Carbon Particulate or soot,
usually seen as black soot. Not only is this harmful to human health especially the
extremely small nano (PM10), particles, it also creates local environmental and product
contamination.
DPFʼs are designed to trap and collect this soot, typically 90%+ resulting in very clean
exhaust at the tail pipe. This collected soot is either burn off in various ways, to create
CO2, or physically disposed of.
Physical Filtration, Replacement Element type
D80 type
Ideal for light duty and temporary use over short periods. They have a ceramic fibre filter
which traps the soot particles, until full at which stage the element is replaced, typically
every 300 hours. Very simple and easy to fit, no changes required to the exhaust system
and will offer an 80%+ efficiency. Will not have any effect on CO and HC toxins. Can be
used with any type of diesel.
Consult us for more details.
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29
Particulate Filters
Combifilter Active Regeneration
The Unikat Combifilter is an integrated diesel particulate filter and silencer which typically
removes 95%+ of the particulates from the engine exhaust and when combined with a
catalyst will meet the most stringent requirement. The soot is stored in the filter until full,
the equipment is then plugged into an electrical source where the internal heating element
raises the temperature to the point at which the soot burns off. This regeneration process
is typically done on a daily basis and can take either one hour or overnight.
The standard system consists of the Combifilter which is installed on the equipment and a
wall mounted regeneration station consisting of an air pump and electronics for monitoring
and creating the regeneration. An alternative exchange system is available consisting of a
two filter arrangement, a clean filter replaces a dirty filter which is regenerated off the
equipment.
The Combifilter is a semi porous silicon carbide ceramic block which allows clean gas to
pass through but traps the soot. An electrical heater raises the temperature above 600
degrees during regeneration which effectively burns the soot in the presence of air and it
passes out through the wall as CO2.
The Combifilter is ideal for equipment such as fork lift trucks, can be used with high sulphur
diesel.
Layout and sizes as shown. Consult us for more details or advice.
ØA
C
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Tel: +44 (0)1752 891360
B
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Particulate Filters
The Combifilter is available as model type K which has an 8 hour regeneration cycle, or
type S with a 40 minute regeneration cycle, both types use a Silicon Carbide filter block.
Model
Intake Air Flow
Weight
A
B
C
Electric Supply
v/Kw
K3
250
25
225
420
70
240/1.5
K5
350
28
275
420
70
240/1.5
K9
550
34
350
450
100
240/2.2
K18
1000
44
350
600
100
415/3.3
S3
250
26
275
415
70
415/5.4
S5
350
29
275
590
70
415/9.0
S9
550
34
350
470
100
415/9.0
S18
1000
44
350
750
100
415/13.3
S24
1300
50
350
800
100
415/13.3
Product Sizing
For maximum effect the correct sized filter must be used. For simplification the engine air intake
figure is used, as follows:
Engine Intake air flow (m3 / Hr) = Engine displacement (litres) x maximum RPM x C
Where C = 0.03
C = 0.05
For normally aspirated engines
For turbo charged engines
Passive Regeneration
Purifilter
Self Regenerating Filters, these use a silicon carbide block as with the
Combifilter but with a catalytic coating. At sustained temperatures of
around 280 degrees the soot trapped in the filter will naturally burn in
the presence of the catalytic coating, into CO2 and be released through
the wall. The catalytic coating will also reduce the CO and HC.
These filters are intended for permanent installation on vehicles and
machinery which is working constantly under load where high exhaust
temperatures are to be found, and should only be used with low sulphur
fuels. Consult us for details.
Tel: +44 (0)1752 891360
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31
Redlake Trading Estate,
Ivybridge, Devon,
PL21 0EZ,
England.
Tel: +44 (0)1752 891360
Fax: +44 (0)1752 891395
e-mail: info@westerntydens.co.uk
http://www.westerntydens.co.uk
PIPES
ELBOWS
PIPEWORK
CLAMPS
RAIN CAPS
BRACKETS
SILENCERS
HEAT SHIELDS
PIPE ADAPTORS
EXHAUST WRAP
SPARK ARRESTERS
EXHAUST PURIFIERS
CATALYTIC CONVERTERS
PARTIAL FLOW FILTERS
PARTICULATE FILTERS
BESPOKE DESIGNS