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Why should rotary joint be equipped with pneumatic butterfly valve
When installing the rotary joint, we did not know whether we had noticed that the other end of the rotary joint must be a soft link with the pneumatic butterfly valve. In some places, pneumatic butterfly valve soft links are even made on both sides. The pneumatic butterfly valve has strong flexibility, and the structure of the rotary joint allows it to fully distribute the liquid flow. There are several basic points for the use of rotary joints.
1. Make up for the coaxiality, displacement, deflection and other deviations between the fluid transmission pipeline and the rotary joint connection. Compensate the axial displacement caused by the wear of the friction pair of the rotary joint and the thermal expansion and contraction displacement caused by the temperature during installation and use.
2. The pneumatic butterfly valve is equipped to reduce or eliminate the influence of the axial degree, perpendicularity, equipment vibration, deflection and other factors on the sealing performance and life of the rotary joint during installation and use. It is used to reduce and weaken the vibration caused by the pressure fluctuation of the conveying fluid and the vibration caused by the matching equipment during operation. Therefore, the manufacturers of rotary joints generally produce pneumatic butterfly valves, because the requirements of rotary joints in the installation process decide that they must be used.