... common parts for easy maintenance8. diaphagm material contact with the medium optional safety explosion -proof, weather use9.LCD display ... pipe thread)electrical connection :M20*1.5 with the threaded end of the conduit product parameters : pressure mediumliquid ,gas,vaporpressure ... 20 * 1.5 (mm) use widely used in the chemical, petroleum, power plants, metallurgy, building materials, medicine, food, ...