YAMIT F700, Руководство по установке и эксплуатации

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5. Sedimentation Tank
51 FLUSHING
•
The Sedimentation Tank can be flushed manually or automatically with an
irrigation controller or backflush controller at periodic intervals.
•
When a manual valve is installed, drain the Sedimentation Tank at periodic
intervals according to the recommendations.
•
The Sedimentation Tank should be drained when it is 1⁄3 full.
•
Do not let the Sedimentation Tank get filled more than ½ of its volume, otherwise
the sand will not flush properly.
•
As a result, the sand will spin, have no place to drain, and cause pin holes in the
neck of the Hydrocyclone.
5.2 SEDIMENTATION TANK PERIODIC CLEANING
•
Check that the rubber insert and/or the metal insert is not worn or damaged and
replace if necessary. When separating sand, the rubber insert may need to be
replaced every 2-3 years. When separating silt, the rubber insert may need to be
replaced every year.
•
Close the valve at the inlet of the Hydrocyclone.
•
Open the drain valve located at the bottom of the Sedimentation Tank to release
pressure and drain.
•
Take off the cover.
•
Remove all the sediments collected in the Sedimentation Tank.
•
Thoroughly rinse the inside of the empty Sedimentation Tank.
•
Replace the cover on the Sedimentation Tank so that the cover gasket fits over it.
•
Mount tightening bracket and tightening handle properly.
WARNING
: Do not tighten or open cover during operation or under pressure.
5.3 MAINTENANCE
•
Apply a layer of grease to handle threads once a year.
•
Immediately repair any damage to the tank’s protective coating by following these
steps:
1. Polish the damaged area by sandpaper till the surface will be smooth (no any
bumps on the painted area).
2. Apply epoxy thinner (to clean the area from dust and oils)
3. Paint by brush the area with two component epoxy primer (after mixing the
primer with the appropriate harden coat) Diluted at a ratio of 1 to 5(20%).
4. After 16 - 24 hours paint a second layer (according item 3).
5. After another 16 - 24 hours, polish lightly the repaired and painted area, and
paint with Polyurethane topcoat (after mixing the topcoat with the
appropriate harden coat) by brush.
F700