Temperature and pressure reduction control valve
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The valve core appears to be two inverted, hole-filled barrels stacked on top of each other, with cooling water entering at the bottom.
Usually, this kind of structure is used to reduce the noise generated by fluids. That sieve hole sleeve serves a sound-damping purpose.
Is the hole there to change the cross-section or to reduce noise? Please advise, experts
It seems to be the spool of a cage valve, but this one is horizontal
So it’s to reduce noise, I learned something new!
It is an improved version of cage-type control valves, designed primarily to address the noise problem caused by the high-speed flow of fluids such as high-pressure steam or other gases; it is commonly referred to as a noise-reducing type. The cooling water sprayed from the cooling water nozzles vaporizes directly into water vapor due to the high-temperature environment.