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How to Maintain and Store Duckbill Rubber Check Valve?

2017/8/19 9:16:30      Click£º
A duckbill rubber check valve is normally installed in pumping system for the purpose of preventing pumped medium from flowing backward. Lanphan duckbill rubber check valve can be divided into clamp connection and flange connection styles, both style are full rubber structure, with the working principle of ¡°positive inflows reverse backstop¡±, duckbill rubber check valve has been widely used in all kinds of pumping system to drainage water.
Periodically inspection and correct storage way are necessary to lengthen the service life of your duckbill rubber check valve. How? Lanphan offers you the answer.

rubber check valve

How to maintain duckbill rubber check valve?

Firstly you should inspect whether there has foreign objects on the duckbill rubber check valve, foreign objects may cause lodged between the lips of the duckbill rubber check valve and could prevent the valve from checking.
Then verify that there is clearance between the bottom of the bill and the ground and that no debris is trapped there.
If the duckbill rubber check valve has blisters, delamination or deformation inside, it indicates that the medium or over high temperature are causing damage to the duckbill rubber check valve, you should replace the valve ASAP.
Also inspect the duckbill rubber check valve for any cuts, checking and fissures. Repairs can be made on site with a repair compound for small cuts. But if significant fissures are noticed where fabric is exposed and torn, the check valve must be replaced.

How to store duckbill rubber check valve?

Be sure to store the valve in a cool and dry place with ventilation, and it should be stored vertically with bill facing upward, not on their side.
Please don¡¯t bend, drop or twist the check valve.
Please avoid exposure the valve to light, dirt, chemicals or electric motors. Rubber made duckbill check valves may become harden or brittle if exposed to ozone and non-compatible chemicals.
You¡¯s better wrap the check valve in black plastic to avoid contact with sunlight or ultra-violet light to extend shelf life.
Last, remember that check valves should not be stacked, and avoid things stored on top of the bills.