D520/7DD, D520/7DDK differential pressure controllerDetailed product description：

The D520/7DD and D520/7DDK differential pressure controllers use bellows type sensors, which can be used for neutral gases such as air, gas, and water vapor, as well as liquid media such as water, oil, and refrigerants. The set values of the controllers are adjustable, with a range of 0.02-1.6MPa and a working pressure range of 0.05-2.5MPa.