Cylinder Hydrostatic Testing

Cylinder Hydrostatic Testing

Hydrostatic testing is critical for assessing pressure vessels such as pipelines, plumbing, gas cylinders, boilers and fuel tanks for strength and potential leaks. Newcastle Safety Servicing are fully trained professionals who provide hydrostatic testing for all compressed air cylinders. From personal SCUBA cylinders to G size industrial medical and specialty storage gas cylinders – we've got you covered.

Depending on the nature of the cylinder, many cylinders require hydrostatic testing every twelve months. This must be carried out in accordance with Australian Standards and be completed by a Certified Test Station. An SAI Global Certified Test Station, Newcastle Safety can service, test and repair all types of compressed air cylinders belonging to SCBA, SCUBA, CABA and emergency breathing systems.

Our Experience with Cylinder Hydrostatic Testing

Newcastle Safety Servicing's state of the art hydrostatic test station allows cylinder hydrostatic testing, inspection and servicing of all seamless cylinders in strict compliance with Australian Standards AS2030 and AS2337. This includes SCUBA, Self-Contained Breathing Apparatus, Emergency breathing systems and CABA. Prior to undertaking cylinder hydrostatic testing, all cylinders are subject to a full external and internal examination to ensure that any corrosion or defects are within the specifications outlined in the Australian Standards.

Cylinder hydrostatic testing is crucial to assess the leak-resistance of pressure valves for all types of cylinders. Newcastle Safety Servicing conduct a strict process for cylinder hydrostatic testing. Whether it be SCUBA cylinders, breathing apparatus or other various types of cylinders, hydrostatic testing needs to be performed with the utmost diligence as such high-pressure vessels require careful handling.


Newcastle Safety Servicing employs highly trained technicians across a wide range of engineering disciplines. Our diverse experience and skillset enables us to deliver the best cylinder hydrostatic testing and services on the east coast. Conveniently located in Newcastle, we can be onsite managing your equipment or delivering after-hours services at your convenience.

Reach & Resources

We have the reach and resources to provide comprehensive cylinder hydrostatic testing across NSW.

End to End Support

Support for every step of the process. We'll diagnose, advise, and implement the necessary inspections on-site.

Extensive Experience

Our breadth of experience in cylinder hydrostatic testing mean that we are more than capable.

Safety Lead

Above all else, our cylinder hydrostatic testing is centred on safety of all employees, clients and workers.

Local Resources

With staff and resources covering the whole East Coast of NSW - we've got your cylinder hydrostatic testing covered.

Upfront Pricing

We deliver fair, transparent, upfront pricing on all cylinder hydrostatic testing and servicing projects.

Diverse Portfolio

We are the preferred cylinder hydrostatic testing professionals for all job sites that require work with cylinders.

Licensed Professionals

Strictly following Aus Standards for cylinder hydrostatic testing, we'll make sure everything is by the book.


How Often Do I Need Cylinder Hydrostatic Testing Services?

In Australia, many high-pressure cylinders, including SCUBA and SCBA cylinders, are required to be hydrostatically tested every twelve months. Cylinder hydrostatic testing frequency is carried out with Australian Standard 2030.1 by a certified test station – such as Newcastle Safety Servicing. Following the testing service, cylinders are stamped on the neck area indicating the month, year and testing station number.

Why Are Cylinder Hydrostatic Testing Services So Important?

Cylinder hydrostatic testing services are so important because such high-pressure cylinders can explode if they fail under pressure. Cylinder hydrostatic testing is performed to check the pressure performance and for potential leaks of a cylinder. These tests are required in order to validate the accuracy and reliability of cylinders used for SCUBA equipment, self-contained breathing apparatus, compressed air breathing apparatus and emergency breathing systems. Without accurate hydrostatic testing, users of such devices cannot be confident that their cylinders will perform correctly while diving, in hazardous working environments or emergencies.

Which Industries Do You Service?

At Newcastle Safety Servicing, we service a wide range of industries. Our breadth of experience and industry-leading knowledge into cylinder hydrostatic testing services has seen us work with clients across a diverse range of industries, including:

• Mining
• Diving
• Communications
• Firefighting
• Defence
• Aviation
• Utilities
• Ports & Maritime Services
• Agribusiness
• Local Councils Across NSW

Which Brands Do You Service?

Our extent of experience in the field has provided us with the ability to test, service, inspect, calibrate and maintain all types and brands of cylinders, gas monitors, breathing apparatus, harnesses, lanyards, anchors points and attachments including but not limited to:

• Honeywell
• Draeger
• Luxfer
• And Many More

What's Involved in Cylinder Hydrostatic Testing Services?

To start, an external inspection is carried out looking for physical damage, alterations, gouges, dents or corrosion. Special attention needs to be paid to repainted cylinders as they may have been heat-treated or had dents or gouges filled. Dents, gouges, corrosion or heat treating, can all affect the integrity of the compressed air cylinder, and as a result, they can lead to failed testing.

The cylinder is then drained, and the valve removed. If in the opinion of the service technician, the valve requires to be serviced, it will usually be serviced at an additional cost. The neck thread and internal space is checked for corrosion, wear, pitting or rust using telescopic mirrors. Steel cylinders as we all know can be subject to rust, some brands more than others due to the amount of carbon used in the steel when manufactured. It is worth noting that rust in steel cylinders is typically a result of carelessness by its user or fill station.

If your cylinder has been filled with moist air from a station that has not been maintaining its filters or compressor adequately, rust will occur. There may also be oil found if this is the case.

The cylinder is then hooked up to the Newcastle Safety Servicing Test Panel. Once all air is removed, the cylinder is pressurised to its test pressure and held there for one minute. The pressure is slowly released, and the expansion measured on a manometer tube. The maximum allowed expansion is measured as per the Australian Standards.

The cylinder is disconnected from the test panel and inverted to drain after which it is dried using warm air on our cylinder heater. After a final internal inspection to ensure proper drying, the neck "o" ring is replaced, and the valve is installed.

The cylinder is then stamped, filled, leak tested at the neck and the test certificate completed. In most cases, unless additional servicing is required, Newcastle Safety will have this process complete and the cylinder ready to go back to you within 48 hours.

How Much Does Cylinder Hydrostatic Testing Service Cost?

How much cylinder hydrostatic testing services costs depends on several factors. Whether or not the cylinder requires additional servicing, the type of cylinder and the process of testing can influence cylinder hydrostatic testing costs. If in the opinion of the service technician, the valve requires to be serviced, it will usually be serviced at an additional cost.

The costs for a standard cylinder hydrostatic test vary from company to company and test station. In NSW, costs will generally range between $25 and $55*. However, this will need to be verified by an agreed-upon quote from your technician. Considering the methods involved and the fact that cylinders are returned full, cylinder hydrostatic testing is an important investment for your breathing equipment and cylinders.

*These are just rough cost estimates - please call us on (02) 4960 1372 to discuss your cylinder testing and we will provide you with an accurate quote.


Do you require cylinder hydrostatic testing? Newcastle Safety Servicing is the answer for a thorough inspection, comprehensive assessment and servicing solutions. Contact us today, to discuss your hydrostatic testing requirements.