Regulators
Welker DA-1 Instrument Air Dehydration Assembly
Instrument Filters

This ideal protection for pneumatic controllers is another Welker Original Product design. The DA-1 incorporates two F-5 style 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 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.

 

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Welker F-23 Low Pressure Filter Dryer
Instrument Filters
  • Low pressure application
  • Filtration and drying in one unit
  • 1/4" NPT connections
  • Ideal for distribution company applications
  • Quick canister replacement
  • 200psi maximum inlet
  • Silica Gel standard
  • Aluminum construction

 

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Welker F-4 Filter/Dryer-Coalescer
Instrument Filters

The Welker F-4 Filter/Dryer is designed for use in pipelines and systems where it is required to filter and to remove moisture and aerosols from gas that is to be used on controllers and instruments. The F-4 features a spin-on replaceable cartridge and a large free liquid fallout volume.

 

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Welker F-5 Filter/Dryer
Instrument Filters

The Welker F-5 Filter/Dryer is designed for use in pipelines and systems where it is required to filter and to remove moisture and aerosols from gas that is to be used on actuators and instruments.
The F-5 features a spin on replaceable cartridge and a large free liquid fallout volume. The standard cartridge has a primary hydrophobic, secondary and a final 4 micron filter. A combination
silica gel and activated carbon desiccant is available as standard with and alternative Iron Sponge is available for H2S applications.

 

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Welker Guardian Flow Conditioner
Regulators

The Welker Guardian Flow Conditioner is designed to protect analytical instruments from liquids. Welker has taken two of it’s products and combined them into one great product. The “Guardian” is quick and easy to install. The “Guardian” is equipped with a shut-off ball that floats on the free liquid and moves up to shut off the flow of liquid slugs that would flood the analyzer. This new product design is to help protect analyzers from damage and contamination by removing liquids and particulates while sampling.

 

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