YOUR "EMPTY"
OXYGEN CYLINDER
PROBABLY ISN'T.
Gas transfer stopping early is not a malfunction, it is simply how standard decanting was always designed to work. Up to 90% of the original gas can be left inside the supply cylinder. SPRESS developed a system specifically to recover it, built around Maximator high-pressure pump technology and available exclusively through SPRESS.
~ 0
%
WASTAGE IN THE RECOVERY PROCESS
0
X
MORE GAS RECOVERED VS. STANDARD DECANTING
0
BAR
FILL PRESSURE, REGARDLESS OF RESIDUAL
0
%
GAS PURITY MAINTAINED THROUGHOUT
Want to know
how much
you are losing?
We can run the numbers for your setup. No obligation, just information.
THE PROBLEM WITH STANDARD DECANTING
Pressure equalisation
stops long before the cylinder is empty.
Standard decanting relies on pressure balance. Gas flows from the high-pressure supply cylinder into the output cylinder until the two pressures equalise. At that point, transfer stops, regardless of how much gas remains in the supply cylinder.
Up to 90% of gas can be left stranded in the supply cylinder, with no means of extracting it through standard methods
Residual gas sits at too low a pressure to fill rescue or output cylinders to their required operating pressure
Open systems carry contamination risk at every transfer point
The lost gas is typically absorbed as an ongoing supply cost, without operators realising an alternative exists
THE SPRESS SOLUTION
A Spress-developed system that
bypasses the pressure-equalisation
limit entirely.
HOW SPRESS ENGINEERED AROUND THE PROBLEM
SPRESS designed and built the Oxygen Transfer System to solve the pressure-qualisation limitation that makes standard decanting inefficient. At its core is a Maximator high-pressure pump, integrated into the transfer process to actively draw residual gas from the supply cylinder and push it into the output cylinders, consistently achieving fill pressures up to 300 bar, regardless of how much pressure remains in the supply source. The system is a closed design throughout, maintaining 99.99% gas purity with zero atmospheric
exposure at any point in the process.
MAXIMATOR TECHNOLOGY
The Maximator high-pressure pump at the core of this system is German-engineered and used across industrial, defence and gas-handling applications worldwide. SPRESS selected and integrated it
specifically for this application.
EXCLUSIVELY THROUGH SPRESS
This system is designed, built and supplied
exclusively through SPRESS. It is not available
through any other distributor or reseller, and is
supported directly by the SPRESS team across
Africa.
WHAT CHANGES, IN NUMBERS
Standard Decanting
vs O² Transfer System
Standard Decanting
Up to 90% gas wasted
Transfer stops at pressure
equalisation
equalisation
Cannot fill to operating pressure
Open system - contamination risk
Higher ongoing gas supply cost
O2 Transfer System
Near-zero wastage
Active booster - draws residual gas
Fills to 300 bar consistently
Closed system - zero
contamination
contamination
Up to 10x more efficient
SPECIFICATIONS
What the system
delivers in practice
0
X
MORE GAS RECOVERED VS. STANDARD DECANTING
0
BAR
FILL PRESSURE, REGARDLESS OF RESIDUAL
0
%
GAS PURITY MAINTAINED THROUGHOUT
~ 0
%
WASTAGE IN THE RECOVERY PROCESS
- Closed system - zero contamination by design
- Compatible with most cylinder types and valve configurations
- Handles oxygen, compressed air and speciality gases
WHERE IT’S USED
Used across a
wider range of industries
than most would expect.
Mines Rescue Operations
Hospital & Medical Gas Filling
Emergency Medical Services
Fire Service Oxygen Supply
Military & Defence
Aviation Ground Support
Remote Site Operations
Industrial Gas Management
WHAT’S NEXT
Now you know it exists.
The SPRESS Oxygen Transfer System is the only system of its kind available through
SPRESS. It is exclusively designed and built in-house, using Maximator high-pressure
pump technology, and supported directly by the SPRESS team across Africa.
Frequently asked questions
Is a supply cylinder actually still full when standard decanting stops?
In most cases, yes. Standard decanting stops at pressure equalisation, not when the cylinder is empty. Up to 90%
of the original gas volume can remain inside the supply cylinder after transfer is complete.
How much of that residual gas can the SPRESS system recover?
The system achieves near-total recovery, with wastage approaching zero. In efficiency terms, it is up to 10 times more effective than standard pressure-equalisation decanting.
What fill pressure does the system reach?
Up to 300 bar on output cylinders, consistently, regardless of how much pressure remains in the supply cylinder at the start of the transfer.
Is it suitable for use with oxygen specifically?
Yes. The system is a fully closed design, maintaining 99.99% gas purity throughout the transfer process with zero
atmospheric exposure, eliminating contamination risk.
What gases and cylinder types is it compatible with?
The system handles oxygen, compressed air and speciality gases, and is compatible with most cylinder types and
valve configurations.
Where is this system available?
The SPRESS Oxygen Transfer System is designed, built and supplied exclusively through SPRESS, with direct
support across Africa.