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LINK

LINK GS PFA25 for ductile iron pipes - Reinforced version

Product family
Couplings and assembling

Technical design

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50 66 64 67 170 155 96 40 -8/+8 70 4 M16x170 4.5 *
60 77 75 78 190 165 96 40 -8/+8 86 4 M16x190 6 *
80 98 96 99 190 185 96 40 -8/+8 101 4 M16x190 8 *
100 118 115.5 119 210 220 96 40 -8/+8 123 4 M16x210 10 199333
125 144 141.5 145 210 240 96 40 -8/+8 149 4 M16x210 13 *
150 170 177.5 171 210 270 96 40 -8/+8 174 4 M16x210 15 205105
200 222 219.5 223 210 315 96 40 -8/+8 226 6 M16x210 21 205106
250 274 269 276 230 375 116 50 -8/+8 278 6 M16X230 25 208372
300 326 321 328 230 425 116 50 -8/+8 330 6 M16X230 34 205108
350 378 373 380 250 485 134 50 -15/+15 382 8 M16x250 42 163981
400 429 424 431 250 535 134 50 -15/+15 433 8 M16x250 50 205109
450 480 475 482 250 595 134 50 -15/+15 484 8 M16x250 55 *
500 532 527 534 250 635 154 55 -15/+15 536 10 M16x250 62 164028
600 635 629 638 290 760 174 60 -15/+15 641 12 M20x290 104 164045
700 738 732 741 290 865 174 70 -15/+15 744 12 M20x290 120 164059
800 842 835 844 320 965 204 70 -20/+20 847 16 M20x320 150 164071
900 945 938 947 320 1075 204 80 -20/+20 950 16 M20x320 160 205141
1000 1048 1041 1050 340 1175 220 80 -20/+20 1053 16 M20x340 186 *
1100 1151 1144 1153 430 1290 300 80 -20/+20 1156 20 M24x430 200 *
1200 1255 127.5 1258 450 1405 300 100 -30/+30 1262 20 M24x450 245 163805
1400 1462 1454.5 1465 450 1620 300 110 -30/+30 1470 24 M27x450 390 163815
1500 1565 1557 1567.5 460 1715 315 120 -30/+30 1572 24 M27x460 440 *
1600 1668 1660 1670.5 450 1830 315 120 -30/+30 1675 28 M27x450 450 *
1800 1875 1864.5 1877 530 2050 380 140 -40/+40 1882 30 M30x530 665 *
2000 2082 2072.5 2083 530 2260 380 140 -40/+40 2088 32 M30x530 740 *

Features

Installation

  • DE margin for assembly pipe: see table Dimensions DE ± (margin for not ovalized pipe). Check than the pipe, to input in the Link, is not ovalized more than 3mm and that the DE dimension with ovalization is not out of the margin. If not it is necessary to proceed re-rounding pipe (see catalogue WATER MAINS for DUCTILE IRON PIPES and FITTINGS)

  • Possible adjustment: dimension X ±e (50mm DN 300-2000)

  • Angular deflection in degree + or – 2 degrees

 Warning: this coupling will only be installed in a valve chamber. Do not install it in buried version

Assembly and start up

Description

The coupling type PS allows the assembly of two spigots

Transport

The transport of the pieces must be done professionally in order to avoid damages on the material.

Storing

The coupling must be protected from bad weather and pollution. During a long storage period a protection against UV is necessary.

Assembling in the pipe network

It is necessary to control that the pieces (pipes) to be connected are clean and not damaged.

Assembly

  • To remove the two tightening rings and the tightening seals.
  • It is necessary to write the measurement X on the spigot.
  • The tightening flanges (1) and the tightening seals (5) slip on the pipes spigots.
  • To position the coupling type PS (2) in the space between the two spigots by respecting distance X on the two sides.
  • The assembly joint-pipe-joint will be perfectly centered compared to the two spigots to be connected.
  • To bring closer the two tightening flanges (1) as well as the two tightening seals (5) towards the pipe of the coupling (2) by centering them.
  • To tighten in cross of the tie rods so that centering is optimal to obtain homogeneous tightening.
  • Tightening must be progressive to obtain the required tightening torque.
  • The coupling is then ready for operation.
Measurement X for PS
DN Measurement X (mm)
100 40
125 40
150 40
200 40
250 50
300 50
350 50
400 50
500 55
600 60
700 60
800 70
900 70
1000 70
1200 100
1300 100
1400 100
1500 100
1600 100
Tightening torque
Tie rods Nm
M16 55 ±4
M20 110 ±10
M24 190 ±10
M27 280 ±15
M30 380 ±20
LINK_montage

Material and coatings

Item Description Material Coating
1 Body Steel EN 10025 S235JRG2 Epoxy mini 300 microns
2 Rods, Washers Steel EN 10025 S235JRG2 or S335J2G3 Class 6/8 Zinc
3 Sealing Ring Elastomer type EPDM  
4 and 5 Flange Ring Steel EN 10025 S235JRG2 Epoxy mini 300 microns
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