Elmo Rietschle VCB20 Vacuum Pump
The Elmo Rietschle VCB20 is an oil lubricated rotary vane vacuum pump with a nominal capacity of 20 / 24 m³/h at 50Hz / 60Hz and a stated ultimate pressure of 2.0 mbar absolute.
The VCB20 is an oil-flooded rotary vane pump that Elmo Rietschle describes as being designed especially for installation in small vacuum packaging machines. Published manufacturer information also identifies a fine mesh inlet filter, vacuum non-return valve, oil separator and air cooling as standard features.
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Pump Type
Oil Lubricated
rotary vane
Capacity
20 / 24
m³/h 50Hz / 60Hz
Ultimate Vacuum
2.0 mbar
absolute
Motor 3PH
0.75 / 0.90
kW 50Hz / 60Hz
Elmo Rietschle VCB20 Overview
The VCB20 is an oil-flooded rotary vane pump that Elmo Rietschle describes as being designed especially for installation in small vacuum packaging machines. Published manufacturer information also identifies a fine mesh inlet filter, vacuum non-return valve, oil separator and air cooling as standard features.
Current Elmo Rietschle information for the V-VCB range describes the VCB20/25 family as oil-flooded rotary vane pumps for compact installations, particularly small vacuum packaging machines.
Oil in this type of rotary vane pump performs several jobs: it lubricates internal moving parts, helps seal the pumping chamber and contributes to heat management. Oil condition, inlet cleanliness and effective exhaust separation can therefore have a direct effect on vacuum performance and service life.
The published three-phase motor rating for this model is 0.75 / 0.90 kW at 50Hz / 60Hz. Because older pumps can exist in different electrical and build configurations, the motor plate and pump nameplate should be checked before a replacement is selected.
Vacuum Pumps UK can assess a new replacement, while VacAir Superstore can support installed Elmo Rietschle pumps with servicing, repair, oil separators, oil and spare parts.
Elmo Rietschle VCB20 Technical Specifications
| Model | Nominal Capacity m³/h 50Hz / 60Hz |
Ultimate Vacuum mbar abs. 50Hz / 60Hz |
Motor 3PH kW 50Hz / 60Hz |
| VCB20 | 20 / 24 | 2.0 / 2.0 | 0.75 / 0.90 |
Typical Applications
› small vacuum packaging machines
› food packing and processing equipment
› vacuum handling and lifting
› printing and paper machinery
› closed vessel evacuation
› general industrial vacuum systems
The correct pump should be selected around the real operating point rather than nominal capacity alone. Required working pressure, evacuation time, inlet restrictions, process gas, vapour load, contamination and duty cycle can all change the result.
For an existing machine, sending Vacuum Pumps UK a photograph of the pump nameplate and installation is often the quickest way to begin a replacement check.
DVP LC20
Oil lubricated rotary vane vacuum pump
Comparable DVP Alternative
Consider the DVP LC20
The DVP LC20 is exceptionally close on the principal published figures: both pumps are rated at 20 / 24 m³/h and 2 mbar absolute. This makes it a logical model to assess when the installation does not require an exact Elmo Rietschle replacement.
The DVP LC20 provides a nominal capacity of 20 / 24 m³/h at 50Hz / 60Hz and a stated ultimate pressure of 2 mbar absolute.
A replacement still needs to be checked for mounting dimensions, inlet and exhaust connections, motor supply, orientation, available space and performance at the machine’s normal working pressure.
Vacuum Pumps UK is the UK and Ireland Master Agent for DVP Vacuum Technology.
Elmo Rietschle VCB20 Replacement Comparison
The figures below are useful for initial screening, but a replacement decision should also consider the pumping curve and the actual pressure at which the machine operates.
| Specification | VCB20 | DVP LC20 |
| Nominal Capacity 50Hz | 20 m³/h | 20 m³/h |
| Nominal Capacity 60Hz | 24 m³/h | 24 m³/h |
| Ultimate Vacuum | 2.0 mbar abs. | 2 mbar abs. |
Elmo Rietschle VCB20 Parts, Service and Repair
Replacement is not always the first answer. Older Elmo Rietschle oil-lubricated pumps can often remain useful when the fault is identified correctly and the condition of the main pumping components is still serviceable.
VacAir Superstore can assist with routine servicing, oil and separator changes, reduced vacuum, oil mist, unusual noise, overheating, leaks and workshop repair.
Spare Parts
Service and repair components for Elmo Rietschle pumps, subject to model and build version.
Oil Separators
Exhaust separation is important for controlling oil mist and maintaining the pump’s oil recovery system.
Vacuum Pump Oil
Correct oil condition supports lubrication, sealing and reliable vacuum performance.
Service & Maintenance
Planned servicing can include oil, filters, separators, inspection and vacuum testing.
Repair & Overhaul
Where servicing is insufficient, workshop investigation and rebuild may provide an alternative to replacement.
Elmo Rietschle VCB20 Frequently Asked Questions
What type of pump is the Elmo Rietschle VCB20?
It is an oil lubricated, or oil-flooded, rotary vane vacuum pump for industrial vacuum duty.
What is the nominal pumping capacity?
The published capacity is 20 m³/h at 50Hz and 24 m³/h at 60Hz.
What ultimate vacuum is specified?
The stated ultimate pressure is 2.0 mbar absolute.
Can an existing VCB20 be serviced or repaired?
Potentially, yes. The sensible route depends on pump condition, parts availability and the nature of the fault. VacAir can inspect and support Elmo Rietschle oil-lubricated pumps.
What replacement can be considered?
Where an exact Elmo Rietschle replacement is not essential, Vacuum Pumps UK can assess the DVP LC20 against the application and installation.
Need Support for an Elmo Rietschle VCB20?
Contact Vacuum Pumps UK for replacement advice, or VacAir support for spare parts, oil separators, oil, servicing and workshop repair.
We can help you decide whether to maintain, repair or replace the existing pump.
