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Sand Probes

When it comes to safety system controls, HLR Controls Inc. leads the way in providing the most reliable, innovative, high quality products. Our line of HLR sand probe relays, switches and elements are specifically designed to monitor erosion in process pipes, signaling an alarm or closing the well until an inspection can be completed. Serving the oil and gas industry worldwide, we offer proven products, quick delivery and the highest level of customer service.

Read more about our HLR line of sand probes below or request a quote from us today.


HLR 7550A Sand Probe Relay

The HLR 7550A is a two position, three way, Normally Open flow control valve assembly that is manually reset. It is designed for use with the HLR 7620 Adaptor and the HLR 7620 Series Sand Probe Elements.

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HLR 7930 Pneumatic Sand Probe Relay


The HLR 7930 is a two position, three way Normally Open, pressure operated, panel mounted, manual
reset flow control valve.

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HLR 350-10 Electric Sand Probe Switch


The HLR 350-10 Electric Sand Probe Switch is a SPDT single pole double throw switch that will provide
an electrical output to a receiving circuit or device upon erosion of a Sand Probe Element.

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HLR 7620 Series Sand Probe Elements


The HLR 7620 Series Pipe Element is one component of a typical three piece Sand Probe
companion assembly.

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HLR 7620MR Series Sand Probe Elements


The HLR 7620 "MR” Series is one part of a two piece Sand Probe companion assembly.

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