Dwyer Instruments, Inc.

Michigan City, IN  |  219-879-8000

Since our founding in 1931, customers have come to recognize Dwyer Instruments to stand for quality, reliability, and readily available low cost products. As a leading manufacturer in the controls and instrumentation industry, we continue to grow and serve major markets including, but not limited to HVAC, chemical, food, oil and gas, and pollution control. Call us today for diaphragm valves!

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