Is it compliant to install the air filter of a pneumatic valve horizontally?
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Is horizontal installation compliant? I hope the regulatory provisions can help. Thank you!
The air filter of the pneumatic valve should not be installed horizontally. Liquid (water, oil, etc.) is generated within the filter; vertical installation causes this liquid to settle at the bottom of the filter, while horizontal installation may allow it to enter the pneumatic valve.
There are no relevant regulations specifying this, but based on the working principle, it cannot be installed horizontally
It is generally required to be installed vertically to facilitate the removal of impurities from the bottom
It must be installed vertically, as specified in the standard \"SHT3551-2013 - Specifications for Quality Inspection of Oil and Chemical Industry Instrumentation Project Construction\"
It must be installed vertically. Structurally, an air filter is a cyclone separator; the air rotates inside, causing dust, oil droplets, and other particles to be thrown against the outer walls and settle at the bottom. If debris gets trapped there, it will move along with the airflow, reducing the filtering efficiency.