... ”(100mm), 6”(150mm), 8”(200mm), 10”(250mm) dial sizes availableVacuum to 10,000 psi,. other ranges also ... 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 connection, front and back flanges, ... different stem lengths, connections and configurations pressure gauge