Page 22 | 26
Rev: 01/18/2021
Flexible Tube Element Wash Procedure
1.
Ensure the system is OFF and pump is not running.
2.
Drain the tank.
3.
Disconnect plumbing from filter head at nearest mechanical connections (refer to
Introduction)
4.
Remove the flange bolts
5.
Lift the filter head and set on a flat surface.
6.
Lift the tube sheet assembly using the eyebolt in the center.
7.
Thoroughly clean and rinse the tube elements, allowing any debris to drain out the bottom
8.
Inspect both gaskets after each head removal procedure. Replacing after each Flexible Tube Element Wash
Procedure is recommended (see
Parts List Assembly
).
9.
Place the gasket onto the upper flange surface of the filter tank.
10. Carefully place (lower) the tube sheet assembly onto the gasket. Ensure the bolt holes align.
11. Place another gasket on top of the tube sheet assembly.
12. Place the filter head onto the gasket.
13. Connect the filter head to the tank using the fasteners with 1 1/8" wrench. Tighten the fasteners to 20 ft-lb (27 N-m) in
the order presented in Figure 10, and then tighten to 55 ft-lb (75 N-m) in the same manner.
14. Reinstall the tube sheet assembly and head.
15. Load media. Refer to Once initial preparation is completed, the unit is ready to be started. For start-up to work
16. Loading Media into the System (Precoat Process)
17. Return the filter to service.
NOTE
The tube sheet weighs approximately 100 lbs (45 kg). Use proper PPE and lifting techniques when removing the filter head and tube
sheet. It may be desired to use a mechanical lifting device.
Figure 13: Head Removal for Service Cleaning
Figure 14: Flange Bolt Torque Pattern
