Pneumatic

Pressure Sensors, Reset Relays, Controller Units, Relief Valves, Velocity Checks

Sand Probes

Pneumatic and Electric Options, Flowline and Panel Mount, Standard Pipe Sizes and Custom Applications Available

Hydraulic

Hydraulic Interface Valves Quick Exhausts Regulators Accumulators

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Innovative

Providing the industry with complete innovative solutions for pressure safety control.

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Reliable

A proven product line with a reliable track record.

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Consistent

All products subject to thorough testing procedures for 100% compliance.

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Quality

SigmaHLR is an ISO 9001:2015 certified company.

OUR PRODUCTS

When it comes to safety system controls, SigmaHLR. leads the way in providing the most reliable, innovative, high quality products. Over the past five decades, our line of SigmaHLR products has set the industry standard for dependable pneumatic and hydraulic instruments. Serving the oil and gas industry worldwide, we offer proven products, quick delivery and the highest level of customer service.

Specialty Valve Provider

SigmaHLR provides specialty valves that are able to operate in the most extreme conditions. We manufacture our valves for use in low temperature arctic service, high temperature industrial applications, as well as having the capabilites of manufacturing exotic materials used in highly corrosive environments.