Marsh Instruments is introducing a new line of differential pressure gauges, devices that measure the difference between two inlet pressures in a system using just one instrument. They can help extend equipment life and prevent malfunction. These are the first differential pressure gauges from Marsh Instruments. Diaphragm-type and piston-type differential pressure gauges are available now through authorized distributors.

Options include aluminum or 316SS wetted parts, multiple dial sizes of 2.5 ", 4 ", 4.5 ", and 6 ", static pressures up to 6,000 PSI, inline, bottom, or back connections/ports, and direct, front flange, 2 " pipe, and surface mounting. Maximum/minimum pointer and integrated pressure switches are also available. Differential pressure gauges from Marsh Instruments can detect clogs, flow abnormalities, and help determine proper system functioning in diverse applications such as oil and gas, irrigation, HVAC, and filtration, as well as measuring liquid levels in cryogenic tanks. Large dial versions are available for use on backflow prevention and test applications in municipal water systems.

For more information, visit