steam, air, oil, water , other pressure media which have no effect on bronz. Application: steam, air, oil, water, other pressure media which have no effect on bronze.1-1/2”(40mm), 2”(50mm), 2-1/2”(63mm), 4”(100mm), 6”(150mm), 8”(200mm), 10”(250mm) dial sizes availableVacuum to 10,000 psi,. other ranges also available upon requestNPT, BSP, PT, and other special connection thread availableBlack ...