KAMAT is an expert when it comes to positive displacement pumps in the industrial sector. Our advanced positive displacement pumps are at the heart of efficient and reliable processes in numerous industrial sectors. With a combination of innovative technology, robust design and customised functionality, our pumps offer unrivalled performance tailored specifically to the needs of demanding industrial applications.
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What are positive displacement pumps and how do they work?
Positive displacement pumps are special pumps that transport liquids or gases by displacement. In contrast to other types of pumps, such as centrifugal pumps, their mode of operation is based on the principle of displacing the volume of elements.
Functionality of positive displacement pumps
The basic function of a positive displacement pump is to contain a certain amount of the medium to be pumped – be it liquid or gas – in a chamber and to move it from an inlet to an outlet by mechanical movement (e.g. turning or pushing). This process is achieved by various mechanisms, such as pistons, diaphragms, screws or gears. These mechanisms periodically increase the volume in the chamber (to draw in the medium) and then reduce it (to displace it). When the displacement is achieved by a plunger, the pumps are also called plunger pumps.
Suction phase: The displacer (e.g. a piston or plunger) in the pump retracts, creating a vacuum and drawing the medium through the inlet into the chamber.
Displacement phase: The displacer moves forwards, reducing the volume of the chamber and increasing the pressure inside.
Discharge phase: The increased pressure forces the medium out of the chamber through an outlet and into the pipe system or a container.
Return to initial state: The displacer returns to its starting position to repeat the cycle.
Areas of application for positive displacement pumps
Due to their efficiency and precision, positive displacement pumps are indispensable in a variety of industries. Some of the most common areas of application are:
Oil and gas industry
Positive displacement pumps – different types
Positive displacement pumps are a class of pumps that displace liquids or gases by periodically increasing and decreasing the volume of an enclosed space. They are classified into
oscillating (e.g. piston or diaphragm pumps)
rotating (e.g. gear or rotary lobe pumps)
and a combination (e.g. radial piston pumps).
A very well-known type of positive displacement pump is the plunger pump. Plunger pumps use a piston (plunger) that moves back and forth in a cylinder. The reciprocating motion of the plunger, which is often made of ceramic, draws liquid into the cylinder, which is then expelled by the movement of the plunger towards an outlet valve, compressing the liquid by reducing the volume of the cylinder. Plunger pumps are not used for gases, as these generally have a larger free space.
Positive displacement pumps from KAMAT: high performance meets quality
Here at KAMAT, the specialist for high-pressure technology, we understand that every industry has its own challenges and requirements. That’s why we offer a wide range of positive displacement pumps suitable for a variety of applications – from the chemical and process industries to mining and construction. Discover how our positive displacement pumps can help boost your productivity and reduce operating costs while ensuring the highest safety standards.
Find out how we can revolutionise your industrial processes with tailor-made solutions and first-class service.
Benefits of positive displacement pumps from KAMAT
Positive displacement pumps by KAMAT stand for innovation and quality, specially tailored to the demanding needs of industry. Here are some of the key benefits that make KAMAT high-pressure pumps a preferred choice in various industries:
High efficiency and precision: the KAMAT positive displacement pumps are known for their high delivery accuracy. They enable precise control of flow and pressure, which is crucial in processes that require accurate dosing.
Robustness and durability: The pumps are known for their robust design and ability to operate reliably even in harsh conditions. They can withstand corrosive, abrasive or highly viscous media, ensuring a longer service life and lower maintenance costs.
Flexibility in applications: KAMAT has a wide range of positive displacement pumps suitable for a wide variety of requirements. From the chemical and food industry to mining and the oil and gas industry, KAMAT offers customised solutions for various industrial requirements.
Customised service and support: KAMAT offers outstanding customer service. From advice and customisation of pumps to after-sales service and technical support worldwide, KAMAT provides excellent support for its customers.
This combination of performance, reliability and customer-orientation makes KAMAT positive displacement pumps the ideal solution for industrial companies looking for high-quality and efficient pump systems.
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