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New differential pressure and flow products

Differential Pressure Flow Meters

DP Flow Meters

Our fully integrated differential pressure flow meters are compact and rugged, with directly connected, large-throated flow nozzles.

PVC Instruments

PVC Instruments

These PVC indicators and switches are ideal for water and corrosive liquids and very popular for water treatment systems.

Mini Transmitters

Mini Transmitters

With a miniature design that measures liquid and gas differential pressure, these low-cost, rugged transmitters are useful in OEM applications.

2-wire transmitters

2-Wire Transmitters

Low-cost differential pressure and flow transmitters for remote use. These transmitters are also offered as an option with our gauge units.

Orange Research

"the differential pressure people"

World leaders in differential pressure gauges, switches and transmitters… all manufactured in Milford, CT…about an hour's drive from New York City. 50 years experience in partnering with customers by engineering solutions and delivering value. Our continuous improvement approach reduces costs, allows for the industry's fastest deliveries and the world's highest quality standards!


Contact Orange Research today for all your differential pressure needs.

50th anniversary