Kv values

Size

Perforations 0.8, 1.6 and 3 mm

Mesh 40 and 100

Mesh 200

DN15

DN20

6.0

11

6.0

11

5.5

9

DN25

19

19

16

For conversion:

DN32

DN40

27

41

27

41

23

37

Spare parts

Cv (UK) = Kv x 0.963

Cv (US) = Kv x 1.156

DN80

DN100

Dimensions/weights (approximate) in mm and kg

The spare parts available are shown in solid outline. Parts drawn in

broken line are not supplied as spares.

Siz

e

A

B

DN15

130

75

DN20

146

86

DN25

165

117

DN32

186

133

DN40

192

150

DN50

222

172

DN65

251

204

DN80

267

227

DN100 362

260

C

127

150

175

200

229

305

343

386

448

Screening

area

43 cm

2

73 cm

2

135 cm

2

164 cm

2

194 cm

2

310 cm

2

406 cm

2

503 cm

2

826 cm

2

Weight

3.2

3.6

5.0

7.3

8.6

13.6

21.0

28.5

42.6

Available spares

Strainer screen

4

A

Always order spares by using the description given in the column

headed 'Available spares' and state the size and type of strainer

and perforations or mesh required.

Example: 1 - Stainless steel strainer screen, having 0.8 mm

perforations for a DN65 Spirax Sarco Fig 3 strainer having

BS 4504 / DIN PN25 connections.

DN15 to 25

Withdrawal

distance

Safety information, installation and maintenance

For full details see the Installation and Maintenance Instructions

(IM-S60-18) supplied with the product.

Suitable isolation valves must be installed to allow for safe

maintenance and trap replacement.

Maintenance can be completed with the strainer in the pipeline

once the safety procedures have been observed. It is recommended

that a new gasket is used whenever maintenance is undertaken.

Disposal

The product is recyclable. No ecological hazard is anticipated with

disposal of this product, providing due care is taken.

Installation note:

Maintenance note:

How to order

Example: 1 off Spirax Sarco DN25 Fig 3 bronze strainer, flanged to

6

BS 4504/DIN PN25 with a stainless steel screen having 0.8 mm

perforations.

6

Pipeline ancillaries

Strainers and filters

C

B

4

Fig 3 Bronze Strainer

TI-P021-01 ST Issue 6

DN32 and 40

3

4

5

Recommended tightening torques

Item Qty Size

1 DN15

or

mm

26 A/F 1" BSP x

29

/

64

"

26A/F 11⁄4"BSPx

37

/

64

"

32A/F 13⁄4"BSPx

41

/

64

"

Nm

42-48

70 - 80

124 - 144

20-24

20-24

50-55

50-55

2

1

1 DN25

5, 6

3

/

8

"UNFx 3⁄4"

4 DN50and65

3

/

8

"UNFx11⁄4"

DN20

4 DN32and40

6 DN80

12 DN100

7

/

16

" UNF x 11⁄2"

1⁄2" UNF x 2"

DN50

64

64

52

DN65

(state material, size of perforation or mesh and size of strainer)

Cap gasket (packet of 3)

3

How to order spares

DN50 to 100

3

2

7.7.6

103

165

268

103

165

268

77

124

196