Pipeline ancillaries
Strainers and filters
Kv values
Size
Perforations 0.8, 1.6 and 3 mm
Mesh 40 and 100
Mesh 200
For conversion: Cv (UK) = Kv x 0.963
Cv (US) = Kv x 1.156
DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN100 DN125 DN150 DN200
5
8
13
22
29
46
72
103
155
237
340
588
5
8
13
22
29
46
72
103
155
237
340
588
4
6
10
17
23
37
58
83
124
186
268
464
Dimensions / weights (approximate) in mm and kg
Spare parts
ASME ASME JIS/
Screening
150 300 KS 20
area
Siz
e
A
A
A
B
C
cm2
The spare parts available are shown in solid outline. Parts drawn
in broken line are not supplied as spares.
Available spares
Strainer screen
4
(state material, perforations or mesh and size of strainer)
Cap gasket
(packet of 3)
3
How to order spares
Always order spares by using the description given in the column
headed 'Available spares' and state the size and type of strainer and
perforation or mesh required.
Example: 1 off Strainer screen, stainless steel having 0.8 mm
perforations for a DN50 Spirax Sarco Fig 34 strainer having
ASME 300 connections.
DN15 120 127 126
70
110
DN20 144 150 150
80
130
DN25 154 160 159
95
150
DN32 180 180 178 130
235
DN40 200 208 202 146
260
DN50 230 240 232 180
320
DN65 290 289 278 200
325
DN80 310 311 297 205
330
DN100 351 351 333 255
405
DN125 401 401 383 315
510
DN150 473 478 461 345
560
DN200 593 600 577 440
710
Weight
27
43
2.9
73
3.8
2.1
135
164
9.0
6.5
251
327
17.5
10.5
361
545
30.0
843
49.0
1 117
68.0
1 909
128.0
24.0
A
B
DN15 to DN25
C
Withdrawal
distance
DN32 to DN200
3
4
5
2
Safety information, installation and maintenance
For full details see the Installation and Maintenance Instructions
(IM-S60-18) supplied with the product.
The strainer should be installed in the direction of flow, as indicated
on the body. On applications involving steam or gases the pocket
should be in the horizontal plane. On liquid systems the pocket should
point downwards.
Warning:
The strainer cap gasket contains a thin stainless steel support ring,
which may cause physical injury if not handled and disposed of
carefully.
The product is recyclable. No ecological hazard is anticipated with
disposal of this product, providing due care is taken.
How to order
Example: 1 off Spirax Sarco DN40 Fig 34 strainer having flanged
ASME 300 connections with stainless steel screen having 0.8 mm
perforations.
Installation note:
TI-P064-02 ST Issue 11
Fig 34 Carbon Steel Strainer - ASTM Material
DN15 to DN25
Disposal
Recommended tightening torques
Item
2
5
Size
Qty
or
mm
DN15
DN20
DN25
1
1
1
22
27
27
DN32 to DN65
DN80
DN100
DN125
DN150
DN200
12
4
4
8
8
8
19
M12 x 30
19
M12 x 35
24
M16 x 45
30
M20 x 50
30
M20 x 55
36
M24 x 65
N m
50 - 55
60 - 66
100 - 110
20 - 24
30 - 35
50 - 55
70 - 77
80 - 88
120 - 130
7.7.22
