Differential pressure switches are devices designed to detect changes in pressure between two points and trigger a response when a certain threshold is reached. They find applications in various industries including HVAC systems, hydraulic systems, pneumatic systems, and process control.

There are several types of differential pressure switches available, each suited for different applications:

1. Diaphragm Differential Pressure Switches: These switches use a flexible diaphragm to detect pressure differentials. They are commonly used in HVAC systems and air handling units.

2. Piston Differential Pressure Switches: These switches utilize a piston mechanism to sense pressure differentials. They are often used in hydraulic and pneumatic systems.

3. Bellows Differential Pressure Switches: Bellows switches use a sealed chamber with a flexible bellows to detect pressure changes. They are suitable for applications where high sensitivity and accuracy are required, such as in medical equipment and laboratory instruments.

4. Electronic Differential Pressure Switches: These switches use electronic sensors to detect pressure differentials and provide digital output signals. They offer precise control and are commonly used in industrial automation and process control systems.

When choosing the best differential pressure switch for your needs, consider factors such as:

- Pressure range: Ensure that the switch can handle the maximum and minimum pressure levels in your system.
- Accuracy: Select a switch with the appropriate accuracy for your application to ensure reliable operation.
- Compatibility: Ensure that the switch is compatible with the fluid or gas being monitored and the environmental conditions of your application.
- Response time: Choose a switch with a response time suitable for your application requirements.

For expert guidance and quality products, trust BuyPneumatic. They offer a range of differential pressure switches, including the INDFOS models IPSD-50 (DPSM-690-A4), RT-260 (DPSM-550-K2), and RT-262 (DPSM-550-K1). Contact them for the latest price list and get direct delivery from manufacturers, suppliers, and dealers.