The pressure switch D520/7DD uses a bellows sensor, which is suitable for neutral gases such as air, gas, water vapor, and liquid media such as water, oil and refrigerant. Its set value is adjustable, the adjustment range is 0.02 to 1.6MPa, and the working pressure range is 0.05 to 2.5MPa. The pressure switch has high precision, high stability and good pressure resistance, which can meet the needs of various industrial environments.

Main technical indicators

• Working viscosity: less than 1×10^-3 m²/s.

• Switching element: micro switch.

• Shell protection level: ordinary type is IP65, explosion-proof type is IP54.

• Ambient temperature: ordinary type is -30℃ to +50℃, explosion-proof type is -20℃ to +40℃.

• Medium temperature: ordinary type is 0℃ to 120℃, explosion-proof type is 0℃ to 95℃.

• Repeatability error: no more than 1%.

• Contact capacity: AC220V 6A (resistive).

Pressure switch D520/7DD provides a variety of set value adjustment ranges and switching difference options to meet the needs of different application scenarios. For example, when the lower limit of the set value range is 0.02MPa and the upper limit is 0.1MPa, the switching difference is no more than 0.012MPa. In addition, the interface of this pressure switch is G1/4″ internal thread, and the material is brass or stainless steel.

Pressure switch D520/7DD is widely used in industrial automation control systems to monitor and control the pressure of various media. For example, in water treatment systems, this pressure switch can be used to monitor the inlet and outlet water pressure of water pumps to ensure the normal operation of the system. In refrigeration systems, it can be used to control the pressure of refrigerants to ensure the refrigeration effect.

D520/7DD pressure switch has become an important component in the field of industrial automation due to its excellent performance and wide range of applications. Its high precision, high stability and good pressure resistance enable it to work stably in various harsh industrial environments. Whether it is water treatment systems, refrigeration systems or other industrial applications, D520/7DD pressure switch can provide reliable solutions.

By the way, we have been supplying spare parts for power plants around the world for 20 years, and we have rich experience and hope to be of service to you. Looking forward to hearing from you. My contact information is as follows:

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