Orange Research Inc.: differential pressure instruments
The company’s differential pressure instruments are explosion-proof and are available in indicator/switch and switch-only models in pressure ranges from 0 to 5 in. of water to 0 to 100 psid. Maximum line service is up to 5,000 psig. Other features include mounting lugs and a 3⁄4 in. NPT conduit connection.
—Orange Research Inc.