"Y" Type strainer DN40-300

"Y" Type strainer DN40-300

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CHECK VALVES and STRAINERS
CHECK VALVES and STRAINERS
PRODUCT FAMILY
PIPELINE PROTECTION
PIPELINE PROTECTION
Main features

All “Y“ type strainer valves offered by SAINT-GOBAIN PAM are designed:

  • To protect all downstream installed valves by retaining all debris which could be conveyed by the fluid inside the water distribution pipeline.
  • To get the best hydraulic working conditions and also an efficient protection in the water distribution system due to its ‘’Y’’ body shape and the filtering cartridge position

Valves range

  • From DN40 to DN300.
  • Designed for a pressure rating of 16 bars.
  • Flanges drilling connection in accordance with ( to be stated when ordering ): ** ISO 7005 – 2 table 9 ISO PN16 = BS 4504 section 3.2 table 11 – C2 PN16 = DIN 2501 PN16 ** ISO 7005 – 2 table 8 ISO PN10 = BS 4504 section 3.2 table 10- C2 PN10 = DIN 2501 PN10

Filtering Cartridge material

The filtering element is a meshed screen of size 2 mm, supported inside of a 1 mm thickness cylindrical metal sheet of with square aperture area of section 10mm10mm.

DNEF
mmmmmm

40

47

91

50

57

105

65

73

123

80

88

144

100

108

184

125

135

221

150

160

260

200

208

335

250

231

360

300

281

390

Material and coatings

Items

Description

Material

Coating

1

Body

Cast iron FGL 250

Epoxy 250 microns

2

Filtering element

Inox 1-4301

3

Lid fitted with a drain plug of size ½ inch

Cast iron FGL 250

Epoxy 250 microns

4

Screws and bolts

Inox A2

Hydraulic characteristics

Headloss calculation

With ‘’Kv‘’ flow coefficient it is possible to determinate the headloss inside the filter by application of the hereunder stated formula:

ΔP = Q² Kv²

with ΔP = headloss in bar, Q = flow rate in m³/hour, Kv = flow coefficient in m³/hour

Headloss with a new filter

DN

40

50

65

80

100

125

150

200

250

300

Kv

44

56

89

127

200

332

494

675

1260

1735

Installation, maintenance

  • The double flanged ‘’Y‘’ type strainer valve must be installed on the upstream side of the valve to be protected.
  • When valve installing instructions: On valve body an arrow indicating the water way circulation. Inside the filtering Cartridge. The filtering cartridge must be placed at the bottom position for cleaning and drainage

Typical installation of "Y" Type Strainer Valve

Attention : prévoir le dégagement de la cartouche filtrante

Maintenance

The filtering Cartridge must be regularly inspected and cleaned.

After each repairable damage on the main, systematically it must be inspected and cleaned out of all debris. Take care when pipeline washing operation does not damage the filter cartridge.

After the filtering cartridge removal and in order to get a perfectly compression of the sealing gasket between the valve body and the lid, it is recommended to screw on bolting one to one opposite side .

The filtering cartridge and its sealing gasket are such as spare parts supply.