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What is the role of compressed air filter? In the 'compressed air station design specification-2002', the filter is clearly defined: 'When the user has requirements for compressed air quality, it should be before and after the air drying device, with gas equipment, etc., the filter of the corresponding accuracy of the equipment ',' when the compressed air needs to be dried, before entering the drying device, effective oil removal measures should be taken for the compressed air ', etc. This shows how important the role of compressed air filters is.Compressed air filter performance: through compressed air filter, impurities such as oil molecules, liquid water, microorganisms, solid particles, dust, fine small particles in compressed air can be removed.For a group of filters with good performance, the filtration efficiency should be high and should generally reach more than 99.99%. the resistance is small to ensure that the filter gas pressure and flow rate do not change much; the filter material itself must
How much is 250 pipeline welding one meter, connected to the shaft machine room, Dongsheng. According to the calculation of extended rice,If the labor cost alone is 40 yuan per meter,And does not contain elbow tee and other pipe fittings. this depends on the requirements for welding,For example, after welding, the weld is required to be RT or UT tested,And the requirements to reach a few levels and so on.The higher the general requirements, the higher the processing fee.Usually calculated according to the number of welded joints,Rarely calculated by length.Hope to help you.I guess that is 3.5--