DVP CPV Industrial Vacuum Systems with Liquid Separator
DVP CPV industrial vacuum systems combine an oil lubricated rotary vane vacuum pump with an integrated 25 litre liquid separator, creating a compact vacuum solution for machinery where non-aggressive liquids or cutting fluids may be drawn into the vacuum line.
Designed principally for glass processing, marble working and stone machining equipment, the CPV range separates collected liquid before it reaches the vacuum pump and helps provide dependable vacuum performance in demanding wet-process applications.
The complete unit can normally be connected directly to the user machine by a vacuum hose, simplifying installation while keeping the separator, vacuum pump and maintenance controls together in one compact assembly.
Vacuum Pumps UK is the UK & Ireland Master Agent for DVP Vacuum Technology.
Need a vacuum system for glass, marble, stone or other machinery where coolant or cutting fluid may enter the suction line?
Send us the machine details, required vacuum level, expected liquid carry-over and operating hours.
Our technical team can help identify the most appropriate CPV model.
System Type
Compact CPV Unit
pump and separator assembly
Capacity Range
12–75 m³/h
50 Hz / 60 Hz range
Separator Capacity
25 Litres
anodised separator tank
Typical Use
Wet Processes
glass, marble and stone
CPV Vacuum System Overview
The DVP CPV range has been developed for industrial machinery where the vacuum system may draw in small quantities of non-aggressive liquid, normally water-based cutting fluid or coolant used during glass, marble and stone processing.
Instead of allowing this liquid to pass directly into the vacuum pump, the incoming air and liquid first enter the integrated separator tank. Collected liquid remains in the tank while the separated air continues towards the vacuum pump.
A ball valve at the tank inlet allows the separator to be isolated from the connected machine during inspection, draining or routine maintenance. The removable galvanised cover provides access to the tank, helping make cleaning and servicing straightforward.
The CPV 25/25, CPV 40/25 and CPV 60/25 use DVP WR-series oil lubricated rotary vane pumps. Their high-efficiency gas ballast system is designed to help manage residual moisture and condensation within the pump oil.
DVP CPV Vacuum System Range
The standard range covers nominal capacities from 12 to 75 m³/h. All four models use a 25 litre separator tank and are designed to achieve a total final pressure of 5 mbar absolute.
Final model selection should consider the required pumping speed, operating vacuum level, machine cycle, expected liquid carry-over and daily operating hours.
| System | Pump type | Tank capacity Litre |
Nominal capacity m³/h 50 Hz / 60 Hz |
Final pressure mbar absolute |
Motor power kW 50 Hz / 60 Hz |
| CPV 12/25 | LC 12WR | 25 | 12 / 14 | 5 | 0.45 / 0.54 |
| CPV 25/25 | LC 25WR | 25 | 25 / 29 | 5 | 0.75 / 0.90 |
| CPV 40/25 | LC 40WR | 25 | 40 / 48 | 5 | 1.1 / 1.35 |
| CPV 60/25 | LC 60WR | 25 | 60 / 75 | 5 | 1.5 / 1.8 |
How the CPV Liquid Separator Works
1. Air and Liquid Enter
Process air, together with any entrained non-aggressive liquid, is drawn from the connected machine into the separator tank.
2. Liquid Is Collected
The reduction in air velocity inside the tank allows the heavier liquid to separate from the airflow and collect in the lower part of the vessel.
3. Air Reaches the Pump
Separated air continues from the tank to the rotary vane vacuum pump, helping reduce the quantity of liquid entering the pump itself.
4. Tank Is Maintained
The inlet ball valve allows the tank to be isolated before collected liquid is removed and the separator is inspected or cleaned.
Why Use a Vacuum System with a Liquid Separator?
Pump Protection
Separating liquid before it reaches the vacuum pump reduces direct liquid carry-over and helps protect internal pump components and lubricating oil.
Compact Installation
The pump and separator are supplied as one compact assembly, avoiding the need to source and connect separate components around the machine.
Simpler Maintenance
The isolation valve and removable separator cover provide practical access for draining, cleaning and routine inspection.
Purpose-Built Solution
The system is specifically configured for machinery where water, coolant or cutting fluid may occasionally enter the vacuum circuit.
WR-Series Pumps for Moisture-Related Applications
The larger CPV models use DVP LC WR-series oil lubricated rotary vane pumps. These pumps incorporate a high-efficiency gas ballast system intended to help separate residual condensation from the lubricating oil.
Moisture that passes beyond the separator can mix with the pump oil during operation. The WR arrangement assists moisture management and allows separated condensation to be expelled from the pump when it is stopped, helping preserve the condition of the oil.
The separator is intended for non-aggressive liquids. Chemical compatibility, liquid quantity and operating conditions should always be checked before selecting the system.
Standard CPV System Features
25 Litre Anodised Tank
Provides integrated liquid separation and collection within a compact industrial assembly.
Galvanised Removable Cover
Allows access to the separator tank for inspection, cleaning and routine maintenance.
Tank Inlet Ball Valve
Allows the separator to be isolated from the connected machine before maintenance work is carried out.
DVP Rotary Vane Pump
Provides dependable industrial vacuum performance across four standard CPV system sizes.
Typical CPV Applications
DVP CPV systems are intended for industrial machinery where the vacuum circuit may be exposed to non-aggressive process liquid, particularly during glass, marble and stone working.
› Glass cutting and processing machinery
› Glass edge grinding and polishing machines
› CNC glass machining centres
› Marble cutting and shaping equipment
› Stone and granite processing machines
› Wet-process CNC machinery
› Machinery using water-based cutting fluids
› OEM equipment requiring liquid separation
Information Required to Select a CPV System
Correct selection depends on more than the nominal pumping speed. The amount and type of liquid entering the system, required vacuum level and machine operating cycle must also be considered.
› Machine manufacturer and model
› Required pumping speed
› Required vacuum level
› Daily operating hours
› Type of liquid or cutting fluid
› Expected liquid carry-over
› Hose length and diameter
› Electrical supply
DVP Sales, Spares and Service Support
Vacuum Pumps UK supplies genuine DVP vacuum pumps and vacuum systems throughout the UK and Ireland. Our team can assist with model selection, technical questions, replacement systems and application advice.
Technical Selection
Advice on pumping speed, vacuum level, liquid compatibility and the most suitable CPV model.
Genuine DVP Equipment
New DVP vacuum pumps, complete systems and original replacement components.
Replacement Systems
Support when replacing an existing CPV system or assessing an alternative machine-mounted vacuum arrangement.
Service and Repair
Servicing, repairs and spare-parts support are available through our sister company, VacAir Superstore.
DVP CPV Frequently Asked Questions
What is a DVP CPV vacuum system?
It is a compact industrial vacuum unit combining a DVP oil lubricated rotary vane vacuum pump with a 25 litre liquid separator. It is designed for machinery where non-aggressive liquid may be drawn into the suction line.
What liquids can the separator handle?
The CPV range is intended for non-aggressive liquids, normally water-based cutting fluids used on glass, marble or stone machinery. Compatibility should be confirmed before use, particularly where additives, chemicals or unusual coolants are present.
Does the separator stop all liquid reaching the pump?
The separator is designed to collect the main liquid carry-over before the airflow reaches the pump. Fine moisture or vapour may still pass beyond the separator, which is why WR-series pumps are used on the larger CPV models.
Why are WR pumps used?
DVP WR pumps include a high-efficiency gas ballast system designed to help manage residual condensation in the lubricating oil and expel separated moisture when the pump is stopped.
How often should the separator tank be emptied?
The interval depends on the amount of liquid entering the system and the operating cycle of the machine. The tank should be inspected regularly and drained before the collected liquid reaches a level that could affect separation performance.
Can the CPV system be connected directly to a machine?
Yes. The compact unit is normally connected to the user machine by a suitable vacuum hose. Hose diameter, length and layout should be selected to minimise pressure loss.
Can Vacuum Pumps UK help select the correct model?
Yes. Send us the machine details, required vacuum level, operating hours, process liquid information and any existing pump data, and we can help identify the most suitable CPV model.
Need a Vacuum System with Liquid Separation?
Contact Vacuum Pumps UK for DVP CPV prices, technical advice and help selecting a vacuum system for glass, marble, stone or wet-process machinery.
Send us your machine and process requirements and we will help identify the most appropriate system.
