Aqua Environment 211-L 211 Series Back Pressure Regulator 1/4" NPT Low Temperature

Also known as a priority valve, the model 211 is a fully balanced, economical regulator. It serves a wide variety of uses, however it's main use is on small compressors. The regulator will improve moisture separator efficiency and filter life as much as 450%. This is done by maintaining pressure in the separator and filter at 1800 PSI or more when tank pressure is lower. It has two outlet ports permitting attachment of a filling yoke and gauge directly to the regulator. This eliminates costly fittings.

Features:

• Back pressure regulator
• 1/4 in. NPT
• Low Temperature

Installation

Use a suitable pipe thread sealant such as teflon tape on the inlet and outlet ports. Plug the second outlet port if not used. Connect the inlet to the source gas such as a compressor. If the regulator is installed in a piping line insure it is adequately supported or adjacent piping is supported so any possible force on the regulator or piping will not damage or break the piping. The regulator is NOT shipped oxygen clean and should NOT be used for oxygen service as provided.

Operation

In operation the back pressure regulator will maintain its set pressure upstream and allow just enough gas flow to hold this pressure. The set pressure can be adjusted by loosening the 7/8" hex nut and turning the adjusting screw with a 5/16" Allen wrench. Set pressure is pressure at the inlet port when gas is flowing through the regulator. The gauge connected to the outlet gauge port does not read set pressure. It reads pressure of the tank being filled down stream of the regulator.

Maintenance and repair

For more information, please see Data Sheet