What problems should we pay attention to when repairing stainless steel ball valve

Valves can be divided into many types, there are stainless steel ball valves, electric butterfly valves, flange gate valves, etc., these are usually used more valves. One of the most used or stainless steel ball valve. In the usual use of stainless steel ball valve process, if the stainless steel ball valve failure, we generally the most commonly used method is to find a special maintenance personnel to repair, but do you know the code of maintenance stainless steel ball valve? Here we will explain it in detail for you.

First point: Before maintenance, the pressure inside the upstream and downstream pipelines of the ball valve must be removed and cleaned before the ball valve can be disassembled and repaired. To prevent the internal pressure from affecting the external environment.

Second point: When installing the flange, it is necessary to install the parts on both sides of the flange symmetrically. After installation, the protective devices on both sides of the flange should be put on.

Third point: the cleaning of disassembled parts should be divided into two methods of cleaning. When the working medium of the parts is gas, the metal parts should be cleaned with gasoline. Non-metal parts are cleaned with pure water or alcohol.

Fourth point: the parts that cannot be broken down should be scrubbed with silk cloth with cleaning agent.

Fifth: Non-metallic parts should be removed immediately after cleaning in water containing cleaning agent, and the cleaned parts can not be shelved for a long time, so that some parts will rust and be re-contaminated by dust.

Sixth: Even the replacement of new parts also need to be cleaned. After installation, you can apply some lubricating oil appropriately.

Seventh: After the ball valve is repaired, it needs to be assembled. In the process of operation, the parts should be handled lightly, do not damage the sealing surface of the ball valve, although its damage can be replaced, but it costs. In some ring pads, you need to use the tool to pick up.