A method for preserving instrumentation needle valve

A method for preserving instrumentation needle valve
First, the body of anti-corrosion, mainly the correct selection of materials. Although the anti-corrosion materials is very rich, but whether the election was appropriate or not an easy thing, because corrosion problems are complex. Select body material difficulties, it lies not only consider the corrosion problem, but you must consider the pressure temperature capabilities, whether economically justified, is it easy to buy and other factors.
Second it is to take lining measures, such as the lining of lead, aluminum lining, plastic lining, lining of natural rubber and various synthetic rubber. The medium conditions permit, This is an economical way.
Again, under pressure, the temperature is not high, with a non-metallic material to make the valve body, often very effective in prevention and control corrosion. In addition, the outer surface of the FD-LOK stainless needle valves body is also exposed to atmospheric corrosion of steel materials generally are in the painting to protect.