Positive displacement pumps are an essential component in many manufacturing processes, and they are commonly used in industries such as food and beverage, pharmaceuticals, oil and gas, and many others. These pumps work by using a rotating or reciprocating mechanism to move a fixed amount of fluid from the inlet to the outlet. Positive displacement pumps can be classified into several types based on their working principle and application. In this article, we will discuss the different types of positive displacement pumps and their applications.
1. Rotary Pumps
Rotary pumps are the most common type of positive displacement pumps, and they work by rotating a mechanism to move fluid from the inlet to the outlet. The two most common types of rotary pumps are gear pumps and screw pumps. Gear pumps are used for low viscosity fluids, while screw pumps are used for high viscosity fluids.
2. Reciprocating Pumps
Reciprocating pumps use a reciprocating mechanism to move fluid from the inlet to the outlet. The two most common types of reciprocating pumps are piston pumps and diaphragm pumps. Piston pumps are used for high-pressure applications, while diaphragm pumps are used for corrosive and high-viscosity fluids.
3. Peristaltic Pumps
Peristaltic pumps use a flexible tubing and a rolling mechanism to move fluid from the inlet to the outlet. The tubing is squeezed by the rolling mechanism, which creates a vacuum to draw the fluid into the tubing. Peristaltic pumps are commonly used in the pharmaceutical and food industries because they are easy to clean and can handle delicate fluids.
4. Vane Pumps
Vane pumps use a rotating mechanism with vanes that slide in and out of slots to move fluid from the inlet to the outlet. Vane pumps are commonly used in the power steering systems of vehicles and as hydraulic pumps.
5. Progressive Cavity Pumps
Progressive cavity pumps, also known as PC pumps, use a single helical rotor and a stator to move fluid from the inlet to the outlet. The rotor turns inside the stator, creating cavities that move fluid from the inlet to the outlet. PC pumps are commonly used in the oil and gas industry for transferring heavy crude oil.
In conclusion, positive displacement pumps are essential in many manufacturing processes, and there are several types available for different applications. It is important to choose the correct positive displacement pump for your application based on the working principle, viscosity of the fluid, and operating conditions. Understanding the different types of positive displacement pumps and their applications is crucial in ensuring efficient and effective operations.
Publisher Details:
Specialised Seals and Flow Solutions
https://www.specialised-sfs.com.au/
+61 481 383 019
Specialised Seals and Flow Solutions is the exclusive distributor for Flexaseal Engineered Seals and Systems in Australia. We offer an expansive product line of mechanical seals including single and dual cartridges, split seals, edge welded metal bellows, slurry, gas, mixer, multi-lip, OEM replacement, and custom engineered solutions. We can also provide seal support systems, valves, electric motors, drives, and other process equipment to suit the needs of virtually every industrial process. We only work with leading manufacturers to deliver you a quality outcome in the fastest timeframe possible. What sets us apart is our technical expertise, market knowledge, competitive lead times, responsive customer service and our purchasing power which ensures you get a competitive price. As an independent we can recommend the best option for your application and budget.
