Peristaltic pumps are a type of positive displacement pump that uses a flexible tube or hose to transfer fluids. There are several types of peristaltic pumps, including:

1. **Roller pumps**: These pumps use a series of rollers to compress the tubing and force the fluid through.

2. **Pinch pumps**: These pumps use a pinch valve to compress the tubing and force the fluid through.

3. **Linear pumps**: These pumps use a linear actuator to compress the tubing and force the fluid through.

4. **Diaphragm pumps**: These pumps use a diaphragm to compress the tubing and force the fluid through.

 

The type of peristaltic pump you choose will depend on your specific application requirements, such as the type of fluid being pumped, the flow rate, and the pressure.