Installation of strainer

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:

Tightening torques for flange connections

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