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Storage and disposal
LRP200000201 Issue A
6 Storage and disposal
6.1 Storage
6.1.1 Safety
6.1.2 Preparation
Use the following procedure to remove the pumping system from the process in preparation for storage.
1. Refer to the installation drawing supplied with the pumping system.
2. Shut down the pumping system as described in Section 4.2.
3. Disconnect the electrical supply.
4. Remove the drive guard and disconnect the transmission system from the liquid ring pump drive shaft; refer to
the manufacturer's instructions supplied with the transmission system.
5. Drain the seal liquid from the pumping system.
6. Place and secure protective covers on the pumping system terminal connections.
7. Refit the drive guard and secure the holding down bolts according to local and national safety standards.
8. Use suitable lifting equipment to move the pumping system to its storage area: refer to Section 3.3.
9. Store the pumping system as described in Section 6.1.3 or 6.1.4.
6.1.3 Short-term storage
If the pumping system is to be stored for no longer than one month:
1. Store the pumping system indoors, in cool, dry, vibration and dust free conditions, at an ambient temperature of
not less than 5 °C.
2. Every 10 days, turn the liquid ring pump drive shaft and drive motor shaft through three or four rotations, to
prevent pump seizure and grease migration.
When required for use, prepare and install the pumping system as described in Section 3.
6.1.4 Long-term storage
If the pumping system is to be stored for one month or more:
1. Fill the liquid ring pump with a suitable corrosion inhibitor such as Castrol Rustilo
®
DWX 32 or Chemetall Oakite
Ryconox 20M.
2. Turn the liquid ring pump drive shaft through 10 rotations.
3. Drain the corrosion inhibitor from the pump.
Ensure that the appropriate Personal Protective Equipment (PPE) is worn when preparing the
pumping system for storage.
Harmful bacteria may have propagated inside the pumping system.
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