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Crude Oil Samplers

The Welker Crude Oil Sampler is the...

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Refined Product Samplers

Welker leads the industry in the design...

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Filters/Filter Dryers

Welker also designs and manufactures...

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Instrumentation

Welker also designs and manufactures a...

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Control Valves

Welker began with control valves and is...

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Probes and Miscellaneous Products

Welker also designs and manufactures a...

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Gas Samplers

The Welker Composite Gas Sampler, with...

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Light Liquid Hydrocarbon Samplers

Utilizing a constant pressure system,...

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Vacuum Switches - General

Vacuum Switches, Vacuum Pressure...

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Vacuum Switches - Hazardous

Vacuum Switches, Vacuum Pressure...

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Temperature Switches - Hazardous

Temperature Switches and Temperature...

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Temperature Switches

Temperature Switches and Temperature...

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SmartCone™

Smart, Accurate and Easy. Combine...

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SFC-332

The SFC 332 is a 32-bit bi-directional,...

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SFC 332P

The SFC 332P is a stationary or mobile...

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SFC 500

The next generation Flow Computer, only...

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SFC 1000

This 4-in-1 flow computer is a very...

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Sanitary Switch

Sanitary Switches, Sanitary Control...

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