Elmo Rietschle VCB25 Vacuum Pump
The Elmo Rietschle VCB25 is a compact oil-flooded rotary vane pump in the V-VCB family, a range associated particularly with smaller vacuum packaging installations, with a nominal capacity of 22.5 / 26.5 m³/h and a stated ultimate pressure of 2.0 mbar absolute.
The VCB25 sits immediately above the VCB20 and provides 22.5 m³/h at 50Hz. Its combination of compact construction and 2 mbar absolute ultimate pressure makes it relevant to packaging machinery and other equipment where a modest-capacity oil-lubricated pump is required.
Replacement pumps, spares, service and technical support from Vacuum Pumps UK and VacAir Superstore.
Replacing an existing VCB25?
Send the pump nameplate plus photographs of the installation and connections.
Pump Type
Oil Lubricated
rotary vane
Capacity
22.5 / 26.5
m³/h 50Hz / 60Hz
Ultimate Vacuum
2.0 mbar
absolute
Motor 3PH
0.75 / 0.90
kW 50Hz / 60Hz
Elmo Rietschle VCB25 Overview
The VCB25 sits immediately above the VCB20 and provides 22.5 m³/h at 50Hz. Its combination of compact construction and 2 mbar absolute ultimate pressure makes it relevant to packaging machinery and other equipment where a modest-capacity oil-lubricated pump is required.
Elmo Rietschle describes the V-VCB family as oil-flooded rotary vane pumps designed especially for installation in small vacuum packaging machines. The range uses a fine mesh inlet filter, vacuum non-return valve, oil separator and air cooling.
In an oil-lubricated rotary vane pump, the oil lubricates the pumping mechanism and contributes to sealing and temperature control. Keeping the oil, inlet filtration and exhaust separation system in good condition is therefore important when diagnosing loss of vacuum or deciding whether an older pump should be repaired.
The published three-phase motor rating is 0.75 / 0.90 kW at 50Hz / 60Hz. A single-phase configuration is also listed for this model at 1.10 kW at 50Hz. Exact electrical details should be confirmed from the fitted motor plate.
Elmo Rietschle VCB25 Technical Specifications
| Model | Nominal Capacity m³/h 50Hz / 60Hz |
Ultimate Vacuum mbar abs. 50Hz / 60Hz |
Motor 3PH kW 50Hz / 60Hz |
Motor 1PH kW 50Hz / 60Hz |
| VCB25 | 22.5 / 26.5 | 2.0 / 2.0 | 0.75 / 0.90 | 1.10 / — |
Typical Applications
› vacuum packaging machines
› food packing and sealing equipment
› tray sealing and chamber systems
› vacuum handling and lifting
› small process vacuum installations
› general production machinery
Application lists are only a starting point. Pump selection should be based on the required operating pressure and pumping speed, not simply the free-air capacity shown on the nameplate.
Where vapour, condensate, dust or process contamination is present, the inlet arrangement and pump specification may need additional consideration before a standard oil-lubricated pump is selected.
DVP LC25
Oil lubricated rotary vane vacuum pump
Comparable DVP Alternative
Consider the DVP LC25
The DVP LC25 is slightly higher in nominal capacity at 25 / 29 m³/h, compared with 22.5 / 26.5 m³/h for the VCB25. Its stated ultimate pressure of 0.5 mbar absolute is deeper than the VCB25’s 2 mbar rating.
The deeper final-pressure capability of the DVP pump, whilst often beneficial to the application or process, it does not by itself make it a direct replacement. What matters is whether it delivers the required pumping speed at the machine’s normal operating pressure and whether the physical and electrical installation is compatible.
Vacuum Pumps UK is the UK and Ireland Master Agent for DVP Vacuum Technology.
Elmo Rietschle VCB25 Replacement Comparison
This comparison is intended for initial replacement screening. The working-pressure pumping curve, pipework, mounting arrangement and process conditions should be considered before changing pump type or manufacturer.
| Specification | VCB25 | DVP LC25 |
| Nominal Capacity 50Hz | 22.5 m³/h | 25 m³/h |
| Nominal Capacity 60Hz | 26.5 m³/h | 29 m³/h |
| Ultimate Vacuum | 2.0 mbar abs. | 0.5 mbar abs. |
Elmo Rietschle VCB25 Parts, Oil, Service and Repair
An established Elmo Rietschle pump does not necessarily need replacing simply because performance has fallen. Contaminated oil, restricted filtration, worn separators, leakage or internal wear can all affect performance and should be considered during diagnosis.
VacAir Superstore supports Elmo Rietschle pumps with service parts, oil separators, vacuum pump oil, maintenance and workshop repair.
Spare Parts
Replacement service and repair components can be identified from the pump model and build details.
Oil Separators
Exhaust separator condition is important for oil-mist control and correct oil recovery.
Vacuum Pump Oil
Correct oil grade and condition help maintain lubrication, sealing and vacuum performance.
Service & Maintenance
Routine maintenance can include oil, filtration, separators, inspection and vacuum testing.
Repair & Overhaul
Workshop investigation can establish whether repair or overhaul remains economical.
Elmo Rietschle VCB25 Frequently Asked Questions
What type of vacuum pump is the Elmo Rietschle VCB25?
It is an oil lubricated rotary vane vacuum pump designed for industrial vacuum service.
What is the pumping capacity of the VCB25?
The published nominal capacity is 22.5 m³/h at 50Hz and 26.5 m³/h at 60Hz.
What ultimate pressure is specified?
The stated ultimate pressure is 2.0 mbar absolute.
Was the VCB25 available with single-phase and three-phase motors?
Published data lists both motor configurations. The actual voltage, phase and motor details of an installed pump should be confirmed from its nameplate before replacement.
Can the existing pump be repaired?
Often it can, depending on internal condition and parts availability. VacAir can investigate reduced vacuum, oil mist, noise, leaks, overheating and mechanical wear.
Which DVP pump can be considered as an alternative?
Vacuum Pumps UK can assess the DVP LC25 as a possible alternative, subject to a full application and installation check.
Need Support for an Elmo Rietschle VCB25?
Contact Vacuum Pumps UK for replacement advice, or VacAir for spare parts, oil separators, oil, servicing and workshop repair.
Send us the existing pump details and we can help determine the most practical next step.
