Maintenance of pneumatic control valves
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As a production operator, how should one carry out proper maintenance of pneumatic control valves? What needs to be done and how? Urgent! I hope everyone can give some advice!
Original poster, first create a record, and then carry out regular maintenance while strengthening inspections. Key inspection items: air source pressure, positioner, pressure reducing filter, pneumatic actuator (cylinder), valve stem, packing gland, valve body, accessories, etc.
As an operating staff member, they may not have the capability to carry out all of the inspections you mentioned; what I want to know is what kind of maintenance and inspections can be done by a regular operating staff member.
1. Prevent rust by applying an anti-rust agent； 2. Regular leak detection for instrument air ； 3. Improve rain protection by installing a protective cover ；
Reply to 3# ybtytyong: As a regular operator, it is also necessary to conduct regular inspections, focusing on ensuring that the exterior of the valves is clean and free from corrosion or contamination； Have any moving parts fallen off? ； The air supply pressure gauge is in the correct position ； Is there any material seeping out from the filler port and flange port? ； Is the lubricant properly applied?