Stainless steel ball valve is a universal valve widely used in valves. It is used in large quantities and consumes a lot of money. Therefore, reasonable maintenance and protection of stainless steel ball valves can not only improve work efficiency, but also reduce maintenance time and save cost.
In order to make the ball valve function stable and lasting, the demand pays attention to the following elements:
1. Before use, apply water to clean the pipeline and the valve body over-flow to prevent residual iron filings and other debris from entering the valve body cavity.
2. In the closed state of the stainless steel ball valve, the local medium remains in the valve body and is also subjected to a certain pressure. Before servicing the ball valve, first close the shut-off valve in front of the ball valve, open the ball valve that needs to be repaired, and fully release the internal pressure of the valve body. If it is an electric ball valve or a pneumatic ball valve, you should first disconnect the power supply and air supply.
3. Ordinary soft-sealed ball valves use PTFE as a sealing material, and the sealing surface of the hard-sealed ball valve is made of metal. If the pipe ball valve needs to be cleaned, care should be taken to avoid damage to the seal ring and leak when disassembling.
When the ball valve is disassembled, the bolts and nuts on the flange should be fixed first, then the nuts should be tightened slightly and finally fixed with strength. If the single nut is forcibly fixed first, and then the other nut is fixed, the surface of the flange will be damaged or broken due to the unevenness of the inner surface, causing the valve flange to be connected to the medium to leak.
5. If the valve is cleaned, the solvent used must not interfere with the parts to be cleaned and will not corrode. If it is a gas-only ball valve, it can be cleaned with gasoline. Other parts can be cleaned with ordinary water. When cleaning, it is necessary to completely clean and clean the residual dust, oil and other deposits. If it cannot be cleaned with clean water, it can be cleaned with a cleaning agent such as alcohol without damaging the valve body and parts. After the cleaning is completed, the cleaning agent is completely evaporated before installation.
6. If it is found that there is slender leakage at the filling during the operation, the stem nut can be tightened slightly, and the leakage can be stopped until the leakage is stopped.
7. Long-term open storage will cause the valve body and components to rust and cannot be used normally. The ball valve should be protected from rain, water, moisture, and the flange cover. Store valves that have been in excess of 12 months and should be tested from the beginning to ensure functional stability.
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