13839 West Bellfort Street Sugar Land, TX

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Since 1954

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Part No

Where to Use

  • Natural Gas or Instrument Air Supply Lines: Upstream of Pneumatic Instruments or Pneumatically Actuated Equipment
    • Locations With Low Ambient Temperatures
    • Supply Lines With Moisture
    • Valves
      • Emergency Shutdown Valves
      • Control Valves
      • Automated Ball Valve Assemblies
    • Natural Gas Compressor Stations
    • Centrifugal Compressors
    • Reciprocating Compressors
    • Oil Refineries
    • Offshore Production Sites
    • Processing Plants
Filter Condition        

The Welker CleanFlow Instrument Grade Natural Gas Systems effectively remove contaminants and liquids from pipeline gas, protecting pneumatic instruments from costly damage, clogs, and freezes.


  • Industry-recognized Welker Filter Dryer
  • Integrated regulator system
  • Optional Welker Automatic Liquid Dump (ALD) or Manual Liquid Dump (MLD)
  • Optional catalytic heater


  • Protects sensitive equipment from damage caused by liquids and contaminants
  • Effectively reduce pipeline pressure to functional range
  • Prevent service interruptions due to freezing
  • Use pipeline gas to supply pneumatic instruments
  • Heats pipeline gas to desired temperature (optional)
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