6”inch-150mmall stainless steel back connection high static pressure differential pressure gauge

Diameter size :4”(100mm);  6”(150mm);
Case/cover :Stainless steel
Window ;Safety glass
Connection :Stainless steel
Thread :M20*1.5  NPT1/2
Bourdon tube :Stainless steel
Movement :Stainless steel
Dial plate :aluminum
Differential pressure   standard : 0-1mpa 0-1.6mpa 0-2.5mpa   0-4mpa 0-6mpa.............
Static pressure 1.6mpa 2.5mpa 4mpa 6mpa   10mpa 16mpa ...........
Accuracy :2.5%
Liquid filling :No