Pipeline valves are controlled fluid delivery system in parts of the valve, which is used to change the channel section and flow direction of medium inlet valve, with diversion, off, throttling, non-return, diversion or overflow relief functions. For fluid control valves, valves off from the most simple to the most complex automatic control valve used in the system, and its many varieties and specifications, the valve nominal diameter from large to tiny instrument valve diameter up to 10m Industrial pipeline valves. EHV can be used to control the water, steam, oil, gas, mud, corrosive media, liquid metals and radioactive fluids and other types of fluid flow, the valve working pressure from 0.0013MPa to 1000MPa, the working temperature from 1430 ℃ ultra-low temperature to a high temperature of -270 ℃ of. Valve parts before assembly process must go through the following procedure: 1, according to the processing requirements, some parts need to be polished, the surface can not have glitches processing; 2, all parts degreasing treatment; 3, after completion of an acid degreasing wash passivation, cleaning agents phosphorus; 4, pickling purified rinse with pure water, can not have drug residues, steel parts omitted this step; 5, one by one parts with non-woven fabric dry heating valves, not wired wool retained the part surface, or be dry with a clean nitrogen; 6, with a non-woven fabric or paper dipped analytical precision parts alcohol to wipe one by one, until there are no dirty color. Yuanda Valve | Jiangxi valves | valve provided by the Dongguan Ming Kong, the Hong Kong Science and Technology Co., Ltd. valve. Valve Co., Ltd., Dongguan Ming Kong (www.gdmgfm.com) strong, credible, butterfly and other industries in Dongguan, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead valve and you work out of Hong Kong into the brilliant, for a better future!