Instrument Air Dehydration Assembly
Style DA-1

This ideal protection for pneumatic controllers is another Welker Original Product design incorporating two style F-5 filter dryers mounted in parallel with high pressure instrument regulators mounted in the outlet of each filter and connected into a common output line. One regulator should be set 20 psi higher than the other so that only the filter dryer on this regulator is in service. Should the charge become saturated and the regulator freeze off due to hydrates, then the output will drop to the setting of the second regulator without interrupting service. A pressure gauge in the output line would make this condition immediately noticeable so that a new charge could be installed in the primary filter dryer without interrupting service. Features - Replaceable filter cartridges - Silica gel / charcoal (standard) - Final filtration - 4 micron - individual cartridge replacement without shutdown of supply - 1/4" NPT connections