DVP Piston Vacuum Pumps
Manufactured in Italy
DVP piston vacuum pumps are designed and manufactured in Italy, combining compact construction with dependable performance for specialist vacuum and pressure applications.
UK & Ireland Master Agent
Vacuum Pumps UK is the official DVP Technology Master Agent for the UK and Ireland, providing genuine DVP pumps, technical advice and after-sales support.
Genuine DVP Parts
We supply genuine DVP filters, valves, seals and replacement components, together with technical support for maintaining piston pump performance.
Speak to a Piston Pump Specialist
Unsure which piston vacuum pump is suitable for your equipment? Vacuum Pumps UK can advise on pumping speed, vacuum or pressure duty, moisture exposure, operating cycle and installation requirements.
Contact Our SpecialistsDVP Piston Vacuum Pumps and Compressors
DVP piston pumps provide a compact and robust source of vacuum or positive pressure for medical, analytical, construction and general equipment applications. Their operating principle is based on a piston moving backwards and forwards inside a cylinder.
Inlet and outlet valves control the direction of airflow. During the suction stroke, air enters the cylinder through the inlet valve. During the compression stroke, the air is discharged through the outlet valve.
Piston pumps are particularly useful in applications where moisture may be present. Versions fitted with a protective safety guard and intake filter are also available for use as portable or mobile units.
How Does a Piston Vacuum Pump Work?
The piston is driven mechanically inside the cylinder, creating alternating increases and decreases in cylinder volume.
Suction Stroke
As the piston moves away, the cylinder volume increases and the pressure falls. The inlet valve opens and air is drawn into the cylinder.
Compression Stroke
As the piston returns, the cylinder volume decreases. The inlet valve closes, the outlet valve opens and the air is expelled.
Suitable for Applications Where Moisture May Be Present
Piston pumps can be a useful choice where the inlet air may contain moisture and where some other vacuum pump technologies may require additional protection or application restrictions.
The pump must still be selected for the actual gas, temperature, liquid carry-over risk and operating conditions. Contact Vacuum Pumps UK where the application contains significant moisture, condensate or process contamination.
Using a Piston Pump as a Compressor
Certain piston pumps can be used to generate positive pressure as well as vacuum. Because each piston stroke delivers a separate volume of air, the outlet flow is naturally pulsating.
A correctly sized air reservoir or receiver should therefore be installed where a smoother and more stable compressed-air supply is required. The reservoir helps absorb pressure fluctuations and reduces pulsation within the system.
Typical Piston Pump Applications
DVP piston pumps are used where compact size, dependable vacuum or pressure and tolerance of demanding operating conditions are important.
• Construction equipment
• Portable vacuum units
• Mobile pressure units
• Sampling and measuring systems
• General equipment vacuum
Why Choose a Piston Pump?
Piston pumps combine a simple mechanical operating principle with compact construction and the ability to work as either a vacuum pump or compressor.
They are often selected for specialist machines, instruments and portable units where reliable intermittent or continuous operation is required.
Choosing the Correct Model
The correct pump depends on the required airflow, ultimate vacuum or delivery pressure, operating frequency, duty cycle and the nature of the gas being handled.
For compressor operation, the required receiver size and acceptable pressure pulsation should also be considered.
Parts, Service & Support
As the official DVP Technology Master Agent for the UK & Ireland, Vacuum Pumps UK provides genuine replacement pumps, OEM components, factory-backed technical support and comprehensive after-sales service.
Frequently Asked Questions
What is a piston vacuum pump?
A piston vacuum pump uses a reciprocating piston inside a cylinder. Inlet and outlet valves control the airflow as the piston alternately draws air in and discharges it.
Can a piston pump handle moisture?
Piston pumps can be suitable for applications where moisture may be present. The amount of moisture, risk of liquid carry-over and operating conditions should still be reviewed before selection.
Can a piston vacuum pump also produce pressure?
Yes, suitable models can be used as compressors. Because the outlet flow is pulsating, a reservoir or air receiver is normally required where smooth pressure delivery is needed.
Are mobile piston pump versions available?
Yes. Versions are available with a protective safety guard and intake filter for use as mobile or portable units.
What information is needed to select a piston pump?
Useful information includes the required airflow, vacuum or pressure, operating frequency, duty cycle, gas temperature, moisture level, electrical supply and whether the pump will be fixed or mobile.
Need Help With a Piston Vacuum Pump?
Speak to our vacuum pump experts for advice on selecting a DVP piston pump, replacing an existing unit, choosing a mobile version or specifying a reservoir for compressor operation.
