What Do We Do?
As accredited service providers, National Hydro Cylinder Testing Services technicians are here to perform your SCUBA Cylinder Hydro Testing and Air Fills in Adelaide.
We operate and manage an approved gas cylinder test station, number 720.
We are focusing and specialising in all Scuba Cylinder Tests and Air Fills aspects.
With more than 35 years of experience, we can help you with your SCUBA cylinders.
When you work with us, you can be assured you will receive high-quality service and care from our friendly technicians, assisting you with all your needs to help you with your SCUBA Cylinder Requirements in Adelaide.
Testing Requirements
- Air Bank Cylinders test cycle is on a (10) yearly basis.
- Aluminium & Steel SCUBA test cycle is on a (1) yearly basis.
- Aluminium SCUBA Eddie Current test cycle is on a (3) three yearly basis.
Feel free to call us today if you have any questions.
Air Fills
At Fire System Services, we provide professional air fill services for both SCUBA and SCBA cylinders, ensuring safety and reliability every time.
Our facility is equipped to handle fills up to 200 bar and 300 bar, meeting the needs of divers, emergency responders, and industrial users alike.
With strict quality control and a focus on clean, breathable air, you can trust us to keep your cylinders ready for use when it matters most.
Hydrostatic Testing
National Hydro Cylinder Testing Services offers hydrostatic testing at various pressures, ranging from as low as 1.0 MPA to as high as 100 MPA, utilizing both Proof Test and Volumetric Expansion Test methods.
We provide certified hydrostatic testing for SCUBA cylinders to ensure safety, compliance, and reliability.
Our testing process assesses cylinder strength and integrity under pressure, helping to prevent failures and prolong service life.
Equipped with professional tools and staffed by qualified technicians, we deliver precise results and certification to maintain the safety and readiness of your SCUBA cylinders.
SCUBA Cylinder Hydro Testing & Air Fills Call us today at 1300 883 473 or email us at info@firesys.com.au
Steel vs Aluminium SCUBA Cylinders
Our licensed gas cylinder test station and capabilities allow us to test and refill high-pressure breathable air gas cylinders ranging from air bank and bailout cylinders to aluminium and steel SCUBA cylinders.
Steel SCUBA Cylinders
Steel cylinders are considered more robust and more durable than aluminium cylinders.
Steel SCUBA cylinders have lower total weight and better buoyancy characteristics.
What does it mean in practice?
Steel tanks shift from negative to neutral buoyancy during a dive, allowing the diver to have more consistent weight and finish the dive better balanced.
Steel SCUBA cylinders have working pressures between 232 bar to 300 bar.
SCUBA cylinders rated to 300 bar are heavier as they have thicker walls to be stronger.
Aluminium SCUBA Cylinders
Aluminium is a softer material requiring thicker walls to contain pressurised gas.
Aluminium SCUBA cylinders also differ from steel ones with buoyancy characteristics – they tend to be slightly negatively buoyant at the beginning of the dive and positively buoyant when they are empty.
The typical working pressure of an aluminium SCUBA diving tank varies between 200 – 230 bar.
Sustained Load Cracking “SLC”
Aluminium 6351-T6
6351 Aluminium Cylinders are generally recommended to be replaced with new ones. However, they can still undergo a Hydrostatic and Eddie Current Test if the owner wishes to continue to use them.
Dive Shops and SCUBA refillers have the right to refuse air fills as the cylinders pose a risk due to SLC developing and the cylinder experiencing a catastrophic failure.
Our Services
The Company offers various services to the Scuba Community within Australia.
- Air Bank Cylinder Testing
- Eddie Current Testing
- Hooker Air Line Pressure Testing
- Hydrostatic Pressure Testing
- SCUBA Cylinder Repaints & Repairs
- SCUBA Cylinder Air Fills