Ball valves must be installed on horizontal pipelines
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In the ship unloading Pid drawing, it is required that the ball valve with → on the pre-cooling line must be installed on the horizontal pipe. What is the reason?
To prevent material accumulation after stopping the pump, please drain the material.
Is the operating temperature lower than -46℃?
Ball valves with gearboxes or pneumatic actuators should be installed upright, that is, on horizontal pipes with the actuator above the pipe.
As mentioned on the 4th floor, "Ball valves with gearboxes or pneumatic actuators should be installed upright, that is, installed on horizontal pipes, and the driving device is above the pipes", which makes sense.: Mainly for operational safety and convenience in operation and maintenance.
Depending on the type of valve, ball valves are divided into fixed balls and floating balls. The larger the diameter, the heavier the ball core, and the soft-sealed ball valve has mandatory sealing. There is no problem no matter how you install such a small diameter.
possible reasons: Convenient to use up leftovers ； In order to eliminate gas ； For ease of disassembly ； To facilitate cleaning and replacement ； Valve structural requirements. It is common for dock valves to have some special requirements for their installation locations.