... . 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 ... hydraulic presses & machinery, motors, winches, Where vibration occurs & pressure fluctuates constantly.1-1/2”(40 mm), 2”(50mm), 2 ... -1/2”(63mm), 4”(100mm), 6”(150mm) dial sizes availableBottom or back ...