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CleanFlow™ Plus

CleanFlow™ Plus

Continuous instrument gas conditioning with automatic backup filtration and regulation.

The Welker CleanFlow™ Plus Instrument Grade Natural Gas System provides clean, dry, regulated pipeline gas for pneumatic instruments and pneumatically actuated equipment while adding automatic backup protection for critical applications. Built with primary and backup filtration, integrated regulation, optional ALD or MLD liquid removal, and optional catalytic heating, CleanFlow™ Plus helps protect instruments from liquids, contaminants, pressure issues, clogs, and freezing. When the primary filter or regulator requires maintenance, the backup filter and regulator automatically activate to help reduce downtime and maintain continuous instrument gas supply.

Where to Use

Critical Pneumatic Instrument Supply Lines

Upstream of pneumatic instruments and pneumatically actuated equipment where uninterrupted clean gas supply is important.

Compressor Stations and Processing Facilities

Natural gas compressor stations, refineries, offshore production sites, processing plants, and valve automation systems.

Backup Filtration and Regulation Applications

Instrument gas systems where automatic backup filter and regulator activation helps reduce service interruptions.


Primary and Backup Filter System

Provides added protection by automatically activating backup filtration when the primary filter requires maintenance.

Integrated Backup Regulator System

Helps maintain regulated instrument gas supply when the primary regulator requires service.

Industry-Recognized Welker Filter Dryers

Remove moisture, liquid hydrocarbons, and mercaptan to help protect downstream pneumatic instruments.

Optional Welker ALD or MLD Liquid Dump

Allows automatic or manual liquid removal for applications with wet pipeline gas.

Optional Catalytic Heater

Helps heat pipeline gas to reduce freezing risk in cold or moisture-prone applications.

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