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In the open-air sections of the pipeline system, many valves are located outdoors; over time, these valves become less flexible in their operation. In particular, some pneumatic butterfly valves and control valves experience sticking when being opened or closed, and they don’t reach their proper positions! Lubrication is required. What kind of grease do experts usually use, and what is the lubrication effect like? ?
If the problem of sticking in the opening and closing of the valve, resulting from rust formation on the exposed part of the valve stem, is the only concern, applying some ordinary lubricant will suffice. The main purpose is to prevent rainwater and moisture in the air from causing rust on the exposed black metal parts.
Valves used in air separation units must be oil-free; if lubrication is required, flexible graphite is the best choice. Since many device valves are related to oxygen, oil should be prohibited.
The valve stems of liquid oxygen valves are generally made of stainless steel, so no anti-corrosion treatment is required. If increasing the lubrication at the filler area, try using molybdenum disulfide powder
Normally, our air separation valves do not require lubricant. Degreased lubricant will be used when necessary.
There is a substance called oxygen valve oil; it is said to be silicone oil, and there is also a fluorine-containing oil
Lubricant for oxygen valves, chlorine-resistant lubricant, lubricant for oxygen valves – these are available online. The Gorunbo® series of lubricants for oxygen valves is a white paste made from polytetrafluoroethylene (PTFE) thickenened full-fluoropolyether oil (PFPE), with special additives that confer heat resistance and corrosion resistance; it is a high-quality, long-lasting multi-functional lubricant. Has anyone used it? How effective is it?
Reply 1# macao can use Ya Mi Ga
The 6th floor is correct; it’s one of the commonly used ones