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Custom Valve Case Studies

See how Humphrey engineers custom valves and manifold assemblies for OEMs across medical, analytical, transportation, material handling and more. Filter by market segment and download any case study PDF.

An Ultra-Low Leakage Custom Manifold for Compact Analytical Instrument

The customer designs and manufactures a wide range of laboratory analytical instruments. A new device incorporated advanced automated technologies to increase accuracy and testing efficiency. The instrument utilized a single-stroke pump to provide compressed air to the instrument, eliminating the need for an air compressor. Miniature valves the customer originally contributed to an unacceptable leak rate. Learn how we fixed the issue.

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A Custom Valve Manifold for High-Performance Leak Testing Instruments

When a customer faced leakage problems in their testing instruments, we created a solution that greatly improved the issue. Their equipment detects pressure changes to 0.00001 PSI, then calculates the leak rate. Selected manifold assemblies were subjected to 200,000 cycles, and every 50,000 cycles the customer ran a precision leak test. On every test, the pressure drop due to leaks was less than 0.002 PSI over 30 seconds at 100psi – the equivalent of a 0.0025 scc/min flow rate. That exceeded the customer’s specifications by a factor of twenty. Read on.

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Smaller Custom Manifold for Carbon/Sulfur Determinator

A manufacturer of portable test equipment wanted to improve the performance and reduce costs in its test equipment. Humphrey reduced the size and complexity of the pneumatic control valve manifold for their carbon and sulfur determinator used in chemical composition analysis. Discover how we created the solution.

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A Miniature Custom Valve Module to Reduce Costs and Improve Performance

A manufacturer of nitrogen and protein determinators needed to reduce the module size in their system. Humphrey designed an assembly that reduced the module size, installation time and costs. Discover how we incorporated all components, including pneumatics, sensors and circuitry, into a pre-tested unit.

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A Custom Valve Manifold for Precision Medical Laboratory Equipment

When a customer required an extremely low leakage valve package that was highly resistant to a variety of reagents, we designed a solution that exhibited consistent and predictable valve-to-valve performance. They also needed a fully automated system that was fast and accurate. We utilized our standard HK5 valve and modified it to be more compact and reduce leakage. Learn how we did it.

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Valve Selection Can Be Complicated

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