Mechanical Equipment & Tool Parts

What are the Different Types of Mechanical Pressure Switches?

Mechanical pressure switches are essential components in many industrial applications. They are used to monitor and control pressure levels in various systems, such as hydraulic and pneumatic systems, HVAC systems, and water treatment systems. Mechanical pressure switches are reliable, durable, and cost-effective solutions for pressure monitoring and control. In this article, we will discuss the different types of mechanical pressure switches and their applications.

Diaphragm Pressure Switches

Diaphragm pressure switches are the most common type of mechanical pressure switches. They consist of a flexible diaphragm that deflects under pressure and actuates a switch mechanism. Diaphragm pressure switches are suitable for low to medium pressure applications, typically up to 1000 psi. They are widely used in HVAC systems, water treatment systems, and industrial automation.

Piston Pressure Switches

Piston pressure switches use a piston to actuate the switch mechanism. The piston moves in response to pressure changes, and when it reaches a certain position, it actuates the switch. Piston pressure switches are suitable for high-pressure applications, typically up to 10,000 psi. They are commonly used in hydraulic systems, oil and gas applications, and industrial machinery.

Bourdon Tube Pressure Switches

Bourdon tube pressure switches use a curved tube that deflects under pressure and actuates the switch mechanism. Bourdon tube pressure switches are suitable for high-pressure applications, typically up to 10,000 psi. They are commonly used in oil and gas applications, chemical processing, and industrial machinery.

Bellows Pressure Switches

Bellows pressure switches use a metal bellows that deflects under pressure and actuates the switch mechanism. Bellows pressure switches are suitable for low to medium pressure applications, typically up to 500 psi. They are commonly used in HVAC systems, water treatment systems, and industrial automation.

In conclusion, mechanical pressure switches are essential components in many industrial applications. The different types of mechanical pressure switches offer a range of pressure sensing capabilities and are suitable for various applications. Diaphragm pressure switches are suitable for low to medium pressure applications, piston pressure switches are suitable for high-pressure applications, Bourdon tube pressure switches are suitable for high-pressure applications, and bellows pressure switches are suitable for low to medium pressure applications. Choosing the right type of mechanical pressure switch depends on the specific application requirements.