McTighe Oil Water Separators
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General Discussion Operation and Maintenance - below ground storage tank
 
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OPERATION AND MAINTENANCE -- Above Ground Storage Tank
 
The Product Saver leg brackets must be welded to storage tank or bolted to a concrete pad so there is always a gravity flow into the system. There must not be traps in the piping to the system. The function of the storage tank water draw-off valve must be inspected before installation of the Product Saver system to verify the fluid flow can be controlled. Piping and components ahead of Product Saver must be compatible with petroleum products.

The Product Saver must always be completely emptied after each application. Sight glasses should be cleaned periodically to assure proper visual control. Manual pump handle may be reinstalled at any angle for pumping convenience by removing the external lock nut from the pump shaft.

Vent must always be clean of any foreign debris. All valves should be periodically serviced to assure their proper function. Diffuser unit may be periodically cleaned by removing diffuser cap on opposite side of tank inlet, and removing any foreign debris that may impair the flow through the product saver.

Operation Instructions

1. Check gauge glasses for breakage. Check gauge glass stop valves to be sure they are open.

2. Close all valves.

3. Open tank water draw-off valve.

4. Open 2" ball (or gate) valve into Product Saver tank and fill to top by observing sight gauges.

5. Close 2" ball (or gate) valve to Product Saver

6. Allow water and product to separate into layers and stabilize by observing sight glasses.

7. Open 1 1/4" water drain valve and discharge water until product level reaches the bottom the sight glass assembly. Close water drain valve.

8. Start pump and return remaining oil back to storage.

9. Repeat steps 4 through 8 as often as necessary until water in storage tank is completely removed.

10. Shut storage tank water draw-off valve until next service period. Open 2" Product Saver valve and

1 1/4" water drain valve and leave in open position wherever freezing temperatures are a factor.

 

 


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