Twin Ferrule Compression Fittings Archives

Never over- or under-tighten again

VIS-LOK is the most reliable and user-friendly stainless steel compression tube fitting on the market today. With its innovative check ring that signals exactly how much to tighten each fitting, our compression fittings allow for a quick and perfect installation every time. No more guesswork, leaking systems or downtime due to costly repairs, just a simple, durable piping system you can rely on.

Discover our VIS-LOK technology Shop compression fittings

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Experience the Ibex Australia difference with high-quality products, a supportive team, and technical experts that you can rely on—all backed by 30 years of industry experience in delivering smarter, safer industrial piping solutions.

Products you can rely on

With a global network of suppliers, we offer the most reliable products in the industry, backed by numerous certifications and accreditations.

A team you can rely on

When you partner with Ibex Australia, you can trust that you’re working with a team of experienced professionals who are always available to provide expert advice and support. We understand the importance of communication and strive to build long-term relationships with our customers.

Technical experts you can rely on

Our team of technical experts can provide product advice and guidance, from initial enquiry through to after-sales service. We have a wealth of knowledge and expertise, enabling us to support you through any stage of your project.

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TESTIMONIALS

Hear From Our Partners

“Their knowledge, friendliness and willingness to go out of their way to ensure the project was completed on time and on budget was outstanding.”

Installation Manager, at Australian Defence Force

We needed a piping system that was versatile enough to cater to the complexity of this project. This is why we chose the Impress® press fit system.

Errol Ewen, Technical Superintendent at Boskalis

“We received good customer service from Ibex from start till the end of the project. I would use these products on our next project…”

Venkatesh Bhupathi, Project Engineer at ProMinent

“We found the press fit systems to be of high quality, and the pipes performed well during the hydrostatic testing. No leaks were reported.”

Danny Vella , Project Mechanical Engineer at Downer Group

“Ibex Australia was a great partner for us. We were very happy with the product and the outstanding service they supplied.”

Installation Manager, at FIJI Water

“No welding, low labour costs, easy installation and reliable results make the product a ‘no-brainer’.”

, Installation Manager at Citic Pacific Mining

Thank you for your help in providing full support on SS tube and fitting delivery. Your service and your team’s assistance are always valued.

Stephen Tedja, at Melbourne Fire Protection

“The team at Ibex have always gone out of their way to make sure we get prompt deliveries and product support”

Peter Carlino, Workshop Manager at SAACKE Australia

“Press fit is much faster than welded tube systems, particularly compared to purge welding. It is simple to use and produces quality pipe work”

Courtney McSpadden, Process Engineering Manager at Automation Mechatronics Industries

“The Express piping system has enabled Endfire to meet and exceed challenges on the Project.”

Ethan Krinks, Fire Project Manager at Endfire

“Ibex delivers a high quality, high spec system that is simple, fast, compliant and cost effective”

Valero Jimenez, Managing Director & Head Distiller at Joadja Distillery

“Being stainless steel and due to the harsh environment, the system is a no-brainer for endless applications”

Jeffrey Manks, Water, Sewer and Landfill Overseer at Berrigan Shire Council

“love the fittings, as it takes out the tensioning guesswork having these check rings & no need to polish the tubing…and it looks GREAT”

Rick Nightingale, Hydraulic Technician/Boilermaker at Fluid Power Services

Frequently asked questions

These fittings work by securely locking onto the pipe or tubing through a compression mechanism. As you tighten the fitting, a ferrule compresses against the tube, creating a tight seal that prevents leaks while ensuring a strong, durable connection. Our VIS-LOK technology means that every fitting includes a check ring, providing you a guide on how much to tighten the fitting. Simply tighten until the check ring comes off and you’ll know you’ve got the perfect connection.

Yes! Our VIS-LOK stainless steel compression fittings are suitable for the severest of applications including vacuum, cryogenic, and high temperatures, as well as hydrogen systems. If you have questions about compatibility with your specific industry or situation, don’t hesitate to give our team a call today.

Installation is straightforward and requires no specialised qualifications. Simply insert the tubing into the fitting until it stops, finger-tighten the nut until it's snug, and then give it a final turn with an appropriate tool until the check ring comes off. The VIS-LOK technology gives you a perfect connection, every time.

High-quality stainless steel tubing that is fully annealed—seamless or welded per ASTM A269, A213 or equivalent—should be used with VIS-LOK tube fittings. The tubing must not exceed a maximum hardness of HRB 90 on the Rockwell Scale. HRB 80 is more suitable for bending and offers a greater difference in hardness to the ferrules. This difference in hardness offers more ease in assembly and better interaction between the ferrules and the tubing.

Choosing the correctly sized fitting depends on the outer diameter of the tubing and the application's pressure requirements. It's crucial to measure the tubing accurately and consult with our sizing guide. If in doubt, Ibex's technical support team can assist in selecting the appropriate fitting size for your needs.

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At Ibex Australia, we will always work to ensure our customers have the best experience with our products and services.