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Welker CleanFlow F-31 Instrument Grade Gas Conditioning System

CleanFlow™ F-31

High-capacity clean, dry seal gas conditioning for compressors and critical instruments.

The Welker CleanFlow™ F-31 Instrument Grade Gas Conditioning System provides a continuous supply of clean, dry gas to critical pneumatic instruments, industrial equipment, and dry gas seal support systems. Designed for centrifugal and reciprocating compressors, emergency shutdown valves, and remote pneumatic instruments, the CleanFlow™ F-31 uses two or four high-capacity Welker F-31 Filter Dryers to handle high-pressure, high-flow gas streams. With single, dual, or quad filter service configurations, filter cartridge options, simplified 4-step cartridge changeout, optional ALD liquid dump, and optional differential pressure gauges, CleanFlow™ F-31 supports long service intervals and reliable equipment protection.

Where to Use

Dry Gas Seal Support Systems

As part of a seal support system for centrifugal and reciprocating compressors with dry gas seals.

Emergency Shutdown Valve Supply Lines

Upstream of pneumatically actuated emergency shutdown valves requiring clean, dry supply gas.

Remote Pneumatic Instruments

Upstream of sensitive pneumatic instruments in remote locations where reliable instrument gas conditioning is critical.


High-Capacity Welker F-31 Filter Dryers

Remove contaminants and moisture from pipeline gas for use as seal gas or instrument supply gas.

Single, Dual, or Quad Filter Service Configurations

Allows the system to be configured based on flow rate, pressure, and service interval requirements.

Filter Cartridge Options

Provides targeted contaminant removal based on application needs.

Simple Cartridge Changeout

Simplifies maintenance and helps reduce service time.

Optional Welker ALD Automatic Liquid Dump

Supports wet gas applications by automatically removing collected liquids.

Optional Differential Pressure Gauges

Provides local indication when filter cartridge maintenance may be needed.

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