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Tuesday, May 14, 2013

How to maintain Pneumatic Valves?

Pneumatic valves are well known across industries, so are used extensively in multiple applications. As they are used in low as well as high pressure and temperature environments, they are made from metals or plastic.

Aluminium is used to make pneumatic valve mostly as the metal is robust and has non-corrosive properties. Often even these valves are made by using cast alloys of aluminium for use in heavy duty applications. Plastic is also used sometimes to make these kinds of valves as it is cost efficient and be easily moulded.

The technological improvements make pneumatic valves ideal for different kinds of devices usually used in construction as well as while manufacturing machinery. They modify various operations easily and efficiently.

As they are subjected to complex processes and machinery, usually trained professionals only should deal with handling their maintenance. Pneumatic valves are used across various industries largely, hence maintaining them is very important. Simple and easy methods to maintain and clean pneumatic valves are listed below.

Some the basic procedures and their uses are elaborated below.

Filter: As these valves constantly come in contact with the various fine particulates and impurities in the air always clean the filters and replace when required. Recommended filters for efficient use are 5 micron filters. Also drain boards fitted within filters should be regularly drained or automatic draining system should be installed.

Lubricator: Check the lubricator as sometimes it may be puddle with access oils and other lubricants and affect the performance as well as health of complex processes and machines. Set lubricators to introduce one drop of oil per second for majority of the tasks and machinery.

Lubricants: Generally petrol based oils with oxidation inhibitors are used as they have light viscosity. Always avoid using oils and sedatives as they can harm valve components and seals. The ideal oils that are recommended for use are the ones which are specially made for air live servicing.

Cleaning: Always clean the interiors of valves to remove any accumulated dirt. To clean the dirt particulates stuck within the valves use ideal commercial solvents or kerosene. Avoid using detergents or abrasive materials while cleaning as they can starch valves. Lubricate surfaces of valves with grease regularly after cleaning them.

Replacement: It is not always required to replace valves as they are expensive, so replace and service worn out surfaces and spare parts often.

If you carefully follow the above mentioned tasks periodically, then maintaining and servicing pneumatic valves is easy.

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