Cage valve flow direction

This post was last edited by CHANGBAISHI on 2020-3-15 08:10. Follow the flow direction indicated on the valve body; if there are any problems, contact the manufacturer. The flow is from top to bottom. There used to be such a common saying, \"low entry, high exit,\" but this phrase is no longer applicable today due to the advancements in valve manufacturing. As early as over a decade ago, the stop valves produced by a factory in Tianjin had a design with flow from high to low; upon disassembly, it was evident that the valve head and valve stem were manufactured with great precision. Therefore, when determining the flow direction of a valve, one should follow the direction arrows as a guide. If in doubt, it is best to consult the manufacturer or supplier for confirmation. Oh, the subject of this valve is a \"gate valve\", and the actuator on it is called a pneumatic diaphragm control mechanism. The combined term for these is called a \"pneumatic diaphragm control valve\". I don’t know what the name of this “cage valve” is?

The valve in the picture is quite ordinary! The installation direction of the cage-type control valve should follow the direction indicated on the valve body. When selecting the flow direction, it is generally preferred to have the flow move outward (low inlet, high outlet), but considering factors such as the stress on the actuator, noise, and cavitation effects, it is also possible to choose a flow direction with the flow moving inward (high inlet, low outlet) ； Gas flow selection: on; Liquid flow selection: off. :lol

Oh, I remember now – there are also those with sieve-hole sleeves to reduce noise. Thank you!

A cage-type control valve is a pressure-balancing type of control valve; there is no need to worry too much about whether the flow is from low to high or from high to low – just follow the direction indicated on the valve body.