Check the machine parts are defective and loose. For the use of harmful human health media, must be intensity, sealing, leakage and accuracy testing. Clean the pipes and valves before installation to remove impurities and grease. In particular, oil-free occasions, users can make specific cleanliness requirements. Selection of lubricants, must consider the taboo of working medium, to avoid accidents. Body and pipe flange connection, pay attention to the coaxiality. Use a wraparound connection between the connection flange on the bonnet and the cold box whenever possible. Installation site should consider the safety of personnel and equipment, both for easy operation, but also conducive to disassembly and maintenance. The valve should be upright, mounted vertically on the horizontal pipe, the last resort can be tilted installation, the valve from the vertical or larger vibration occasions, must be fixed with a support frame. Media flow should be consistent with the arrow on the body. Air flow should be dry, no oil. Valves should be between the ambient temperature -30 ~ 60 ℃ role. In order to make the automatic control system failure or repair the valve can still be continuous production, should be set up bypass. Bypass valve flow characteristics and travel Keywords in this article: Regulating valve
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