Installation of a Y-shaped filter

Installation of a Y-shaped filter

Installation of mesh filters should be carried out in accordance with the recommendations of the manufacturers, but it is also important to consider:

  • Mesh filters can only be installed on horizontal or vertical pipelines with flow from top to bottom.
  • When installed on a horizontal pipeline, the sludge collection chamber should be below the pipeline axis.
  • Manometers should be installed before and after the filter for mechanical cleaning of the flow.
  • The section with the filter should be equipped with shut-off valves necessary for disconnection and cleaning.
  • The filter housing should not be subject to twisting, stretching, bending, or compression loads from the attached pipeline.

Sequence for packing a threaded connection

1. Take a flax fiber string with enough threads so that its twisted diameter is approximately equal to the depth of the thread. The length of the string should provide for 1.5-2 times more windings than the number of thread turns.

2. Starting approximately 50-70 mm from the beginning of the string, slightly twist it, place it in the first thread turn, and, holding it with your hand, tightly wind a long branch of the string clockwise, placing it in each thread turn.

3. When reaching the end of the thread, continue winding with a second layer, shifting the turns to the beginning of the thread. The length of the second layer winding should be approximately equal to 2/3 of the thread length.

4. Wind the remaining end of the string (50-70 mm) similarly clockwise, from the end of the thread to its beginning.

5. Apply a layer of sealant to the winding surface.

6. Tighten the connecting elements by hand. With correct packing, the assembled element should turn 1.5-2 full rotations.

7. Continue tightening the element with a wrench or a torque wrench. In case the assembled element needs to be in a specific position, complete tightening it in the necessary position of the element.

With proper packing, during tightening, the force should not exceed the tightening torque listed below:

DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN100
70 Nm 95 Nm 120 Nm 150 Nm 190 Nm 230 Nm 280 Nm 350 Nm 400 Nm

Tightening torques for flange connections

DN Nut/Bolt Torque, Nm
15 - 32 М 10 15 - 30
40 - 65 М 12 35 - 50
80 - 100 М 16 75 - 100
125 - 150 М 16 80 - 120
200 М 20 150 - 200
250 - 400 М 24 340 - 410
500 М 27 340 - 410

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DN
Nominal diameter DN
mm
PN
Nominal pressure PN
bar
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