6 tips for storing a rotary airlock valve

Posted by Brittany Dollimore on

Our valves can handle anything you throw at them, whether it’s delicate powders, corrosive chemicals, or abrasive construction materials. Although valves can take a lot of punishment, they still need to be handled with care both inside and outside of the conveying line.

When they’re ready to be installed and run, valves that have been stored properly can deliver maximum performance with minimal issues.

Until then, follow these important storage rules.

Receiving valves

1) Inspect your shipment

As soon as your rotary valve arrives, you should carefully inspect the shipment to ensure everything on the packing list has arrived in good condition. If you notice any damage or missing items, report it to your ACS Valves rep immediately and file a claim with the shipment carrier.

2) Move the valve with care

Rotary valves are heavy, sometimes weighing hundreds or thousands of pounds. Never try to move it by hand. Always use a forklift, hand truck, or overhead crane with slings to do the hard work.

Instead of lifting the valve by its flanges or shaft, you should install lifting eyes on the inlet flange to set up lifting chains or slings. While it’s in motion, do your best to balance the valve’s weight distribution to keep it from rotating.

Storing valves short-term

3) Keep it warm, dry, and clean

Not taking the valve directly to your conveying line? Store it in a warm, dry, and clean location, and leave the flange covers in place until it’s time to install the unit.

4) Avoid condensation

Anytime you’re moving the valve from a cold area to a warm one, take care to keep it covered. This helps prevent condensation that can cause corrosion on the valve’s machined surfaces, which can then lead to contamination or malfunctions.

If you do notice condensation on the valve, let it dry completely before applying any power.

Storing valves long-term (90+ days)

5) Cover the valve properly

If you’re planning to store the rotary valve for longer than 90 days, you’ll need to keep it in a temperature-controlled facility such as a warehouse or enclosed building. Give it a weatherproof covering with the vented parts exposed. Unpainted portions of the valve should stay covered. If there are any scratches or flaked areas, retouch them as well.

6) Keep inspecting the valve

Make sure any plugs or drain plugs are still operational before storing. After it’s stored, you’ll need to be diligent about inspection and maintenance — a visual inspection of the rotor is particularly important.

For additional parts or accessories (e.g., space heaters on the motor), consult that vendor’s documentation to see if they specify any storage instructions.

Get an expert opinion

If your rotary valve has been in storage for longer than one year, contact your ACS Valves rep for recommendations before attempting to use it. We’re here to help.

Categories: Reliability , Technical Support