Peristaltic Pump vs Diaphragm Pump

What is the peristaltic pump?

The peristaltic pump consists of three parts: driver, pump head, and silicone tube. The main competitive advantages of the peristaltic pump are fluid isolation in the pump tube, rapid replacement of the pump tube, fluid retrograde, dry operation, and low maintenance costs.

A peristaltic pump works like squeezing a fluid-filled hose between your fingers. The fluid moves forward as you slide your finger forward. Peristaltic pumps work the same way but with rollers instead of fingers. The fluid is pumped by alternately squeezing and releasing the pump's flexible delivery hose. Like squeezing a hose between two fingers, as the fingers move, negative pressure forms inside the tube and the liquid flows with it

What is a diaphragm pump?

Diaphragm pump, also known as the control pump, is the main type of actuator, by accepting the control signal output from the control unit, with the help of dynamic operation to change the flow of fluid. The role of the diaphragm pump in the control process is to accept the regulator or computer control signal, change the flow of the medium so that the parameters are maintained in the required range, so as to achieve the automation of the production process.

Peristaltic pump and diaphragm pump common: diaphragm pump and the peristaltic pump is the same they are positive displacement pump.

The difference between peristaltic pump and diaphragm pump:

1. Peristaltic pump and diaphragm pump work in different principles.

2. Peristaltic pump and diaphragm pump cleaning methods are different.

The diaphragm pump cleaning method is difficult, difficult to disassemble. 3. Peristaltic pump disassembly cleaning than diaphragm pump convenient

4. The service life of the peristaltic pump and diaphragm pump is different

Diaphragm pump transport some corrosive medium, stainless steel pneumatic diaphragm pump will not be easy to plug. Compared with a peristaltic pump, the service life is longer.

5. Diaphragm pump is driven by air pressure, so there is a pressure limit at the outlet, when the pressure reaches the limit, the pump will stop working, and the peristaltic pump does not have this.

6. diaphragm pumps will have a ball valve when the system contains positive and back pressure to close the whole pump loop, otherwise, there will be no way to work properly.

7. Peristaltic pump and diaphragm pump prices are different

Diaphragm pump early purchase cost is not much, but more consumables, maintenance costs are higher than a peristaltic pump. Diaphragm pump prices and peristaltic pump prices differ a lot.

Diaphragm pump and peristaltic pump different applications:

Industrial application of peristaltic pump: medical instruments, analytical instruments, water treatment, environmental protection equipment, paint, printing and inkjet, food and beverage, chemical, biological pharmaceutical, process industry, and many other industries.

Diaphragm pump industry application: chemical, mining, ceramics, manufacturing, pharmaceutical, food, beverage and cosmetics, and other industries.