Is it necessary to equip each pneumatic valve’s intake pipe with a three-piece unit?
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Is it necessary to equip each pneumatic valve’s intake pipe with a three-piece unit? Is it okay to install one on the main pipe? If an solenoid valve box is installed, is it against the specifications to install a three-way fitting on the main pipe?
It’s not necessarily the case; some of the air used for instruments in our company goes through specialized drying and oil-removal equipment, so pneumatic triple units are not required when using them.
It’s better to add it; after all, the instrument is the eyes of production
Does that mean it needs to be added in front of each pneumatic valve?
Definitely add it; how much is a triple unit anyway? Control valves are incredibly expensive~
If the facility has a common instrument air system, and the instrument air is specially treated, then it may not be necessary to install a triple unit; otherwise, its installation is required.
A filter-regulator valve should be installed on the air supply pipeline for pneumatic control valves. For cylinder-type pneumatic on/off valves (without valve positioners), a pneumatic trio should be used, which serves to filter, regulate pressure, and lubricate the cylinder.
Sir, what is a valve positioner used for? If I already have it, do I still need to install a three-piece set?