DVP BCA Vacuum Booster Pumps
DVP BCA vacuum booster pumps are dry-running volumetric lobe pumps designed to operate in series with a primary oil lubricated rotary vane vacuum pump.
The two synchronised lobes rotate without contact inside the pumping chamber, transferring large volumes of gas from the inlet to the outlet without lubrication or contact-generated residue inside the compression space.
When correctly matched with a suitable backing pump, a BCA booster can substantially increase pumping speed at low pressure, shorten evacuation times and improve the performance of high-vacuum industrial processes.
A BCA booster must not be selected as a stand-alone vacuum pump. It requires a correctly sized primary backing pump and suitable system controls.
Need help selecting a vacuum booster and backing pump combination?
Send us the chamber volume, required pressure, evacuation time, process gas and operating cycle.
Our technical team can help select the correct BCA booster system.
Capacity Range
279–3,465 m³/h
50 Hz / 60 Hz range
Operating Principle
Twin Lobe
Non-contact rotation
Pumping Chamber
Dry Running
No process-chamber lubrication
System Requirement
Backing Pump
Primary pump always required
What is a Vacuum Booster Pump?
A vacuum booster pump is a high-capacity positive-displacement pump installed in series with a primary vacuum pump. It is commonly described as a Roots-type booster, lobe booster or mechanical vacuum booster.
Inside the BCA pumping chamber, two synchronised two-lobe rotors rotate in opposite directions. Their motion creates expanding and contracting volumes that transfer gas from the inlet towards the outlet.
The lobes do not touch one another and do not contact the pumping chamber. As a result, the pumping chamber operates dry, without oil lubrication and without residue caused by rubbing or mechanical contact.
The booster does not normally discharge directly to atmosphere. The primary rotary vane pump reduces the outlet pressure and provides the pressure conditions required for the BCA booster to operate effectively.
How a BCA Booster System Works
1. Primary Pump Starts
The oil lubricated rotary vane backing pump begins evacuating the chamber and lowers the system pressure.
2. Booster Engages
Once suitable operating conditions are reached, the BCA booster begins transferring a much larger volume of gas towards the backing pump.
3. Pumping Speed Rises
The combined system delivers substantially greater pumping speed in the booster operating range than the backing pump can provide alone.
4. Process Vacuum Is Reached
The booster and primary pump work together to reduce evacuation time and achieve the required process pressure.
Why Use a Vacuum Booster Pump?
Faster Evacuation
Higher pumping speed can reduce the time required to evacuate chambers, vessels or production equipment.
Higher Throughput
Shorter pump-down cycles can increase the number of process cycles completed during a shift.
Dry Compression Chamber
No oil is used in the BCA pumping chamber, reducing the risk of process contamination from the booster stage.
High Pumping Speed at Low Pressure
The booster provides increased gas-handling capacity in pressure ranges where a primary pump alone may evacuate more slowly.
Correct Booster and Backing Pump Selection
A vacuum booster cannot simply be added to any rotary vane pump. The booster size, backing-pump capacity, maximum permitted pressure difference, operating pressure and starting method must all be considered as one complete system.
If the booster is operated outside its permitted differential pressure, excessive load and temperature can result. Correct control is therefore essential, particularly during initial pump-down and process pressure changes.
Vacuum Pumps UK can help assess the required pumping speed, booster-to-backing-pump ratio and suitable operating controls for the complete installation.
DVP AdaptShield Protection Technology
DVP offers BCA booster pumps with AdaptShield technology to help manage booster operation and protect both the BCA pump and the primary lubricated backing pump during critical operating events.
Performance Monitoring
Helps identify operating conditions that may cause a loss of expected booster performance.
Temperature Protection
Provides protection when operating conditions create an excessive temperature risk.
Booster Protection
Helps prevent damaging operation of the BCA booster during abnormal or critical events.
Backing Pump Protection
Coordinates protection of the primary lubricated pump as part of the combined vacuum system.
Available BCA Configurations
BCA pumps can be supplied for IEC 72 B5 motors in three principal configurations.
BCA Pump Without Motor
Suitable where the customer or system builder will provide and integrate the required motor and controls.
BCA Pump with IE3 Motor
Complete booster pump and high-efficiency IE3 motor assembly ready for integration into the vacuum system.
BCA + IE3 Motor + AdaptShield
The most complete configuration, combining the booster, IE3 motor and DVP protection technology.
DVP BCA Vacuum Booster Pump Range
The range covers nominal capacities from 279 to 3,465 m³/h. Final selection must consider both nominal capacity and the maximum permissible pressure difference across the booster.
| Model | Nominal Capacity m³/h 50 / 60 Hz |
Maximum Pressure Difference mbar |
Motor Power kW 50 / 60 Hz |
Nominal Speed rpm 50 / 60 Hz |
Inlet / Outlet DN |
|---|---|---|---|---|---|
| BCA 300 | 279 / 334 | 80 | 1.1 / 1.5 | 3000 / 3600 | 80 |
| BCA 500 | 504 / 605 | 80 | 2.2 / 3 | 3000 / 3600 | 100 |
| BCA 1000 | 1008 / 1210 | 80 | 4 / 4 | 3000 / 3600 | 100 |
| BCA 1500 | 1433 / 1720 | 66 | 4 / 5.5 | 3000 / 3600 | 150 |
| BCA 2000 | 2045 / 2454 | 50 | 5.5 / 7.5 | 3000 / 3600 | 150 |
| BCA 3000 | 2887 / 3465 | 40 | 7.5 / 11 | 3000 / 3600 | 150 |
Typical BCA Vacuum Booster Applications
DVP identifies BCA booster pumps for demanding industrial processes that require high pumping speed at low pressure.
› Pharmaceutical vacuum processes
› Vacuum metal treatment
› Vacuum furnaces and heat treatment
› Electrical transformer oil degassing
› Vacuum drying processes
› Vacuum coating and treatment systems
› High-throughput industrial pump-down systems
Process compatibility, gas composition, contamination risk and operating pressure should always be reviewed before selecting the booster and primary pump combination.
Information Required to Select a BCA Booster
› Chamber or vessel volume
› Starting and final pressure
› Required evacuation time
› Existing backing pump model
› Process gas or vapour
› Operating cycle and daily hours
› Electrical supply
› Required control and protection package
DVP Booster Pump Sales and Technical Support
Vacuum Pumps UK supplies genuine DVP BCA vacuum booster pumps throughout the UK and Ireland. We can assist with booster selection, backing-pump matching, configuration and replacement requirements.
System Selection
Advice on booster size, backing pump capacity, pressure range and evacuation performance.
Genuine DVP Equipment
New BCA boosters, motor configurations and genuine replacement components.
Replacement Boosters
Help identifying existing lobe boosters and assessing suitable DVP BCA replacements.
Service and Repair
Vacuum pump servicing, repairs and spares support are available through our sister company, VacAir Superstore.
DVP BCA Vacuum Booster Frequently Asked Questions
What is a DVP BCA vacuum booster pump?
It is a dry-running positive-displacement lobe booster designed to operate in series with a primary vacuum pump. It increases pumping speed in the booster operating pressure range.
Is a BCA booster the same as a Roots blower?
The operating principle is commonly referred to as Roots-type technology. Two synchronised lobes rotate without contact to transfer gas from the inlet to the outlet.
Can a BCA booster operate on its own?
No. DVP states that BCA boosters should always be installed in series with a primary oil lubricated rotary vane vacuum pump.
Why does the booster need a backing pump?
The backing pump lowers the outlet pressure and creates the conditions needed for the booster to operate within its permitted pressure difference.
Is the BCA pumping chamber oil free?
The booster pumping chamber operates dry and does not use oil for internal compression. The complete vacuum system still includes a lubricated primary backing pump unless another approved arrangement is specified.
What does maximum pressure difference mean?
It is the maximum permitted pressure differential between the booster inlet and outlet. Operating above this value can overload and overheat the booster.
What is DVP AdaptShield?
AdaptShield is DVP protection technology intended to help protect both the BCA booster and the primary lubricated pump during critical events such as excessive temperature or loss of performance.
What capacities are available?
The BCA range covers nominal capacities from 279 m³/h to 3,465 m³/h across the BCA 300, 500, 1000, 1500, 2000 and 3000 models.
Which industries use vacuum booster pumps?
Typical applications include pharmaceutical processing, vacuum metal treatment, transformer oil degassing, food processing and food packaging.
Can Vacuum Pumps UK select the backing pump as well?
Yes. Send us the process pressure, chamber volume, required evacuation time and existing equipment details, and we can help assess the complete booster and backing-pump combination.
Need Faster Pump-Down or Greater Low-Pressure Capacity?
Contact Vacuum Pumps UK for DVP BCA vacuum booster prices, backing-pump selection and technical advice.
Send us your chamber volume, target pressure and required evacuation time for a system assessment.
