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Since 1954

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Part No

Where to Use

  • Anywhere Liquids Slugs or Free Liquids Accumulate and Need to be Removed
  • Natural Gas or Instrument Air Supply Lines: Upstream of Pneumatic Instruments or Pneumatically Actuated Equipment as Part of a CleanFlow™ System

The Welker MLD-1 Manual Liquid Dump is designed to protect downstream instrumentation from damage and contamination by separating free liquids from a wet gas stream. Gas flows freely through the MLD-1, but any aerosols or free liquids are separated from the stream as they pass through the internal coalescer. Gravity causes the separated liquids to fall to the bottom of the MLD-1, where they collect until drained by an operator.


  • Internal coalescer
  • Replaceable coalescing element


  • Prevents and separates aerosols and free liquids from reaching downstream instruments
  • Helps protect sensitive instrumentation equipment from damage caused by liquids and contaminants
More Information
Maximum Allowable Operating Pressure : 1500 psig @ -20 °F to 120 °F
Drain Valve : ¼" FNPT
Inlet Connection : ½" FNPT
Filter : 5 Microns
Weight : 24 lb

Weight and/or dimensions are approximate.

Specifications subject to change without notice.

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