The selection of various types of needle type pneumatic valve principle 2)

, cryogenic equipment, pipeline system and the media should be used with pneumatic valve cover pneumatic valve needle coupling at low temperature. , the oil refinery catalytic cracking unit pipeline system device, needle type pneumatic valve lift rod selection. , chemical system, pH value and other corrosive medium equipment and pipe system, should choose the austenitic stainless steel and ptfe pneumatic pneumatic valve seat stainless steel needle. , metallurgy, electric power system, petrochemical plant, city heating system piping hot medium or device, the choice of metal to metal seal needle type pneumatic valve. May make worm gear, the demand of traffic control, pneumatic or pneumatic valve and adjust the needle a v-shaped opening the use of electricity. Pipeline, oil, natural gas, need to clean the pipe, and buried in the ground, with full size, full welding structure of the pneumatic valve, needle in the ground laid, choose the full size of welding connection or flange connection pneumatic ball valve. , product oil pipeline and storage equipment, needle pneumatic valve flange. , city gas and natural gas pipeline, the use of pneumatic valve flange and thread a needle. , metallurgical oxygen generation system, pipeline system should use skim, through strict treatment, needle pneumatic valve, flange connection. This site keywords: pneumatic ball valve pneumatic ball valve pneumatic pneumatic valve pneumatic pneumatic valve