Piston Pumps



For over 25 years, Hunter Pumps Industrial has been a regional and nationwide industry leader in providing industrial pump solutions across Australia. Specialising in the supply of piston pumps and positive displacement pumps, we effectively deal with viscous media and media containing solid particles. Partnering with the world’s most trusted brands, we deliver unbeatable quality and reliability.

A Piston Pump is a type of positive displacement pump. It has a disc-shaped displacement body that uses a piston or plunger to move liquids. The plunger moves into the cylinder through a revolving shaft, displacing fluids. Once the plunger moves out, it draws in another volume of fluids.

Hydraulic Piston Pumps are excellent at pumping liquids, compressed gases, viscous materials, and materials containing suspended solids. They are also excellent at applications like water and oil hydraulics, chemical injection, industrial processing, odour control, and high-pressure jetting or washing, to name a few.

Key Features

Strong and Simple Design

Piston pumps boast a sturdy construction and an uncomplicated design. They consist of a cylindrical compartment, a piston, and a few regulating components.

Positive Displacement Pump

These pumps fall under the type of positive displacement pumps. This means they employ a piston, diaphragm, or plunger to transport fluids.

Rotary Pump

The typical piston pump is a rotary-style pump, utilising a wheel or rotating shaft to drive the piston.

Multiple Pistons

Some piston pumps may include multiple pistons, each with its regulating components.

Single or Double-Acting Pumps

There are single-acting and double-acting piston pumps. The latter has dual sets of control devices and fluid at both ends.


Besides their key features, piston pumps have many benefits, such as:

High Efficiency

Piston pumps are recognised for their excellent efficiency.

High-Pressure Capacity

They can manage high pressure up to 1,000 bar or 14,000 psi.

Low Flow and Pressure Fluctuations

Piston pumps maintain consistent flow and pressure levels.

Low Noise Development

These pumps operate with low noise levels.

High Load at Minimum Speed

Piston pumps can sustain significant loads, even at reduced speeds.

High Reliability

These pumps are known for their reliability.

High Suction Performance

Piston pumps excel in suction performance, particularly when dealing with viscous materials.

Robust and Resilient

The pump is built to withstand heavy-duty usage, especially with dense fluids.

Spare Wearable Parts

Their intermittent operation helps prolong the life of wearable parts.

High Material Pressure

High material pressure and volume make Piston Pumps compatible with long hoses.

Lightweight Housing

The pump's housing is lightweight but resilient, ideal for harsh conditions and construction sites.


How Does a Piston Pump Work?

A piston pump works on a simple principle: the reciprocation of a piston within a cylindrical chamber. This reciprocating motion alternates between drawing fluid and discharging it, creating an almost continuous flow.

The process begins with the suction stroke. As the piston retracts, it creates a vacuum within the cylinder. This decrease in pressure opens the inlet valve (due to the higher external pressure), allowing the fluid to enter the cylinder.

Next comes the discharge stroke. The piston moves forward, compressing the fluid within the cylinder. The increased pressure opens the discharge valve (as internal pressure exceeds external pressure), pushing fluid out of the cylinder.

The suction and discharge valves in piston pumps are spring-loaded. This design ensures efficient pump operation by opening only when the pressure difference reaches a specific threshold. With this mechanism, piston pumps can effectively handle viscous media or media with solid particles, making them suitable for various industrial applications.

If you need dependable and efficient piston pumps, look no further than Hunter Pumps. We’ve got you covered for all your pumping needs!

Piston Pump Types

Understand the different types of piston pumps:

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Lift Piston Pump
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Force Piston Pump
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Axial Piston Pump
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Radial Piston Pump

INDUSTRY Applications

Piston Pumps can process a wide range of materials, from low-viscosity materials such as glazes to high-viscosity and highly-filled materials for outdoor use. This includes:

PISTON PUMP Specifications

The primary specifications to consider when selecting piston pumps are:

Experience Unmatched Efficiency with Hunter Pumps' Piston Pumps

At Hunter Pumps Industrial, we supply Piston Pumps, a type of reciprocating pump known for its efficiency in moving and pressurising fluid. As a positive displacement pump, it’s perfect for high-pressure applications due to its seal that reciprocates with the piston. We’re a trusted provider across Australia, offering an extensive range of world-leading manufacturers. Our service extends to emergency spare parts availability and on-field servicing by trained staff. Trust us for your pump solutions.

Explore our extensive Piston Pump range at Hunter Pumps Industrial and experience unparalleled service and product quality. From supply to repair and servicing, Hunter Pumps Industrial can help you select and maintain your piston pumps, hydraulic piston pumps, and piston water pumps to suit the needs of your operations. Contact us now!

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Frequently Asked Questions (FAQs)

Piston pumps are usually quiet since they're one of the most efficient pump types, with an efficiency of up to 85-90%.

Regular maintenance of a piston pump typically involves checking and replacing worn parts, keeping the pump clean, and ensuring it’s properly lubricated. Always refer to the manufacturer’s instructions for specific maintenance guidelines.

While some piston pumps can handle corrosive or abrasive fluids, it’s important to check the specifications of the specific pump model to ensure it’s suitable for such applications.

While both are types of positive displacement pumps, the main difference lies in the design. In a piston pump, the piston is in direct contact with the pumped fluid. In a plunger pump, a high-pressure seal separates the plunger from the fluid.