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Welker SP-2 Sample Probe

SP Sample Probe

A versatile fixed probe for gas, light liquid, sampling, injection, and siphoning applications

The Welker SP Sample Probe is a versatile fixed pipeline probe designed for spot or composite sampling of natural gas and light liquid hydrocarbons, as well as injection or liquid siphoning applications. Extending into the center third of the pipeline, the SP helps extract a representative sample for accurate analysis in gas, liquid, and multipurpose pipeline service. Built with 316/316L stainless steel construction, a large port outlet valve, and NPT, flanged, or wafer connection options, the SP Sample Probe provides a durable, corrosion-resistant solution for sampling systems, injection points, and natural gas pipeline liquid removal.

Where to Use

Natural Gas Sampling

Spot or composite sampling of natural gas from the center third of the pipeline.

Light Liquid Hydrocarbon Sampling

Spot or composite sampling of light liquid hydrocarbons for representative sample analysis.

Sampling, Injection, or Siphoning

Multipurpose pipeline service for sample extraction, chemical injection, or liquid siphoning.


Fixed Probe Design

Provides a simple, reliable pipeline sampling point for gas or light liquid applications.

Center-Third Pipeline Insertion

Helps extract a more representative sample from the flowing product stream.

Large Port Outlet Valve

Supports sampling, injection, or siphoning with reduced restriction through the outlet.

316/316L Stainless Steel Construction

Provides corrosion resistance and durability for long service life.

NPT, Flanged, and Wafer Connection Options

Gives operators installation flexibility across different pipeline and system requirements.

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