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Benefits

Stops the pressure front and flame front.
Stops gas from back feeding into the system.
Prevents fire from being supported by gas.
Signal lever will show if the pressure sensitive cut-off has been activated; the lever is also used for resetting the flashback arrestor.

Unitor W-66S Oxygen is the No. 1 choice for Flame Arrestors (Flashback Arrestors) certified and under surveillance by The Federal Institute for Materials Research and Testing (German: Bundesanstalt für Materialforschung und -prüfung, or BAM) and OCIMF/RIGHTSHIP compliant.

The Wilhelmsen W-66S protects regulators and gas cylinders against flashback and detonation.

Maritime authorities, such as the Norwegian Maritime Directorate, require the installation of flashback arrestors for acetylene and oxygen to prevent flashbacks. Flashbacks can occur when incorrect maintenance or use of gas welding equipment causes a flame to travel back through the hoses and into the regulator or cylinder. This can lead to an explosion or fire. Flashback arrestors work by interrupting the flow of gas if a flashback occurs, preventing the fire from spreading.

Note. For safety, we recommend annual testing and replacement of flashback arrestors every 5 years, in line with COSWP UK, OCIMF SIRE, and RIGHTSHIP RISQ requirements.

Features
Pressure sensitive cut-off valve to prevent further gas supply after a flashback (activated by the pressure shock in front of the flashback) .
Temperature activated cut-off valve to prevent further gas supply in case of fire (activated if the temperature rises to approximately 100° C) .
Flame filter/arrestor to quench the flame front of a flashback or a burn back.
Non-return valve for preventing reverse flow of gases, thereby preventing a gas mixture from reaching pipelines or cylinders.
Resettable.
Marking of manufacturing date and serial number for traceability.

Unitor W-66S Oxygen Flashback Arrestor - 105 m3/h - 302976

Benefits

Stops the pressure front and flame front.
Stops gas from back feeding into the system.
Prevents fire from being supported by gas.
Indicator ring will show if the pressure sensitive cut-off has been activated; the ring is also used for resetting the flashback arrestor.

Introducing the Wilhelmsen Unitor S55 Oxygen Flashback Arrestor – your ultimate safety companion in the world of oxygen cutting and welding. Designed with precision and built to last, this state-of-the-art flashback arrestor is a must-have for professionals who prioritise safety and efficiency in their work.

The Unitor S55 Oxygen Flashback Arrestor is engineered to provide an impenetrable shield against the hazards of flashback incidents. Backed by cutting-edge technology and rigorous testing, this innovative device guarantees uncompromised protection, allowing you to work with confidence and peace of mind.

Featuring a robust construction, the Unitor S55 is built to withstand the toughest working conditions. Its durable housing ensures exceptional durability, while the advanced internal components offer superior performance and longevity. Rest assured that this flashback arrestor will stand the test of time, maintaining its reliability even under intense usage.

Installation and usage are a breeze with the Unitor S55. The user-friendly design makes it easy to connect and integrate into your existing equipment setup. Its compact size ensures seamless integration, without sacrificing valuable workspace. Simply attach it to your oxygen supply line, and you're ready to tackle your tasks with enhanced safety measures.

The Unitor S55 Oxygen Flashback Arrestor goes beyond the basic requirements. It is equipped with dual safety mechanisms that work in perfect harmony to provide an additional layer of protection. The advanced flame arrestor prevents flame propagation, effectively stopping any potential damage from reaching your equipment or workspace. Meanwhile, the built-in non-return valve prevents gas flow in the wrong direction, preventing dangerous backfires.

With its exceptional performance and reliability, the Unitor S55 meets and exceeds industry standards. It is suitable for a wide range of applications, including cutting, welding, brazing, and heating. Whether you're working in automotive repair, shipbuilding, or metal fabrication, this flashback arrestor is your indispensable partner for staying safe and maximising productivity.

Invest in the Wilhelmsen Unitor S55 Oxygen Flashback Arrestor and safeguard yourself and your work environment from the perils of flashback incidents. Prioritise safety without compromising on efficiency – order your Unitor S55 today and experience the ultimate peace of mind while you work.

Note. For safety, we recommend annual testing and replacement of flashback arrestors every 5 years, in line with COSWP UK, OCIMF SIRE, and RIGHTSHIP RISQ requirements.

Features
BAM-certified and OCIMF/RIGHTSHIP-compliant
Pressure sensitive cut-off valve to prevent further gas supply after a flashback (activated by the pressure shock in front of the flashback) .
Temperature activated cut-off valve to prevent further gas supply in case of fire (activated if the temperature rises to approximately 100° C) .
Flame filter/arrestor to quench the flame front of a flashback or a burn back.
Non-return valve for preventing reverse flow of gases, thereby preventing a gas mixture from reaching pipelines or cylinders.
Resettable.
Marking of manufacturing date and serial number for traceability.
Each flashback arrestor 100% tested.

Unitor S55 Oxygen Flashback Arrestor - 50 m3/h - 708545

Benefits

Stops the pressure front and flame front.
Stops gas from back feeding into the system.
Prevents fire from being supported by gas.
Signal lever will show if the pressure sensitive cut-off has been activated; the lever is also used for resetting the flashback arrestor.

The Wilhelmsen Unitor W-66S Acetylene Flashback Arrestor is a safety device that prevents flashbacks from occurring during gas welding. Flashbacks can occur when a flame travels back through the hoses and into the regulator or cylinder, which can lead to an explosion or fire. The W-66S flashback arrestor works by interrupting the flow of gas if a flashback occurs, preventing the fire from spreading.

The W-66S flashback arrestor is made of high-quality materials and is designed to withstand the harsh conditions of gas welding. It is also easy to install and use. The W-66S flashback arrestor is a valuable safety device for anyone who uses gas welding equipment.

Note. For safety, we recommend annual testing and replacement of flashback arrestors every 5 years, in line with COSWP UK, OCIMF SIRE, and RIGHTSHIP RISQ requirements.

Features
BAM-certified and OCIMF/RIGHTSHIP-compliant
Pressure sensitive cut-off valve to prevent further gas supply after a flashback (activated by the pressure shock in front of the flashback) .
Temperature activated cut-off valve to prevent further gas supply in case of fire (activated if the temperature rises to approximately 100° C) .
Flame filter/arrestor to quench the flame front of a flashback or a burn back.
Non-return valve for preventing reverse flow of gases, thereby preventing a gas mixture from reaching pipelines or cylinders.
Resettable.
Marking of manufacturing date and serial number for traceability.

Unitor W-66S Acetylene Flashback Arrestor - 19 m3/h - 183970

Benefits

Stops the pressure front and flame front.
Stops gas from back feeding into the system.
Prevents fire from being supported by gas.
Indicator ring will show if the pressure sensitive cut-off has been activated; the ring is also used for resetting the flashback arrestor.
Wilhelmsen Unitor S55 Acetylene Flashback Arrestor - the ultimate solution for a safe and worry-free welding experience!

Designed with the highest safety standards in mind, this top-of-the-line flashback arrestor is an essential tool for any welding job. It effectively prevents dangerous flashbacks from occurring by interrupting the flame path and extinguishing the flame before it can travel back to the gas source.

Crafted with superior quality materials, the Unitor S55 is built to last and withstand the toughest working conditions. Its compact, lightweight design makes it easy to install and use, while its reliable performance ensures optimal protection for both the user and equipment.

With its excellent flow capacity and precision-engineered components, the Unitor S55 provides exceptional gas flow control, ensuring a stable and consistent flame for the best welding results. Plus, its user-friendly design makes it easy to maintain and service, ensuring maximum uptime and reliability.

Don't compromise on safety when it comes to welding - choose the Wilhelmsen Unitor S55 Acetylene Flashback Arrestor and stay protected on the job!

Note. For safety, we recommend annual testing and replacement of flashback arrestors every 5 years, in line with COSWP UK, OCIMF SIRE, and RIGHTSHIP RISQ requirements.

Features
BAM-certified and OCIMF/RIGHTSHIP-compliant
Pressure sensitive cut-off valve to prevent further gas supply after a flashback (activated by the pressure shock in front of the flashback) .
Temperature activated cut-off valve to prevent further gas supply in case of fire (activated if the temperature rises to approximately 100° C) .
Flame filter/arrestor to quench the flame front of a flashback or a burn back.
Non-return valve for preventing reverse flow of gases, thereby preventing a gas mixture from reaching pipelines or cylinders.
Resettable.
Marking of manufacturing date and serial number for traceability.
Each flashback arrestor 100% tested.

Wilhelmsen Unitor S55 Acetylene Flashback Arrestor - the ultimate solution for a safe and worry-free welding experience!

Designed with the highest safety standards in mind, this top-of-the-line flashback arrestor is an essential tool for any welding job. It effectively prevents dangerous flashbacks from occurring by interrupting the flame path and extinguishing the flame before it can travel back to the gas source.

Crafted with superior quality materials, the Unitor S55 is built to last and withstand the toughest working conditions. Its compact, lightweight design makes it easy to install and use, while its reliable performance ensures optimal protection for both the user and equipment.

With its excellent flow capacity and precision-engineered components, the Unitor S55 provides exceptional gas flow control, ensuring a stable and consistent flame for the best welding results. Plus, its user-friendly design makes it easy to maintain and service, ensuring maximum uptime and reliability.

Don't compromise on safety when it comes to welding - choose the Wilhelmsen Unitor S55 Acetylene Flashback Arrestor and stay protected on the job!

Note. For safety, we recommend annual testing and replacement of flashback arrestors every 5 years, in line with COSWP UK, OCIMF SIRE, and RIGHTSHIP RISQ requirements.

Features
BAM-certified and OCIMF/RIGHTSHIP-compliant
Pressure sensitive cut-off valve to prevent further gas supply after a flashback (activated by the pressure shock in front of the flashback) .
Temperature activated cut-off valve to prevent further gas supply in case of fire (activated if the temperature rises to approximately 100° C) .
Flame filter/arrestor to quench the flame front of a flashback or a burn back.
Non-return valve for preventing reverse flow of gases, thereby preventing a gas mixture from reaching pipelines or cylinders.
Resettable.
Marking of manufacturing date and serial number for traceability.
Each flashback arrestor 100% tested.

Wilhelmsen Unitor S55 Acetylene Flashback Arrestor - 8.5 m3/h - 708537

Benefits

Saves money on costly gauge repairs
Ensures accurate gas flow control for optimal welds
Extends regulator lifespan
Provides peace of mind while welding

Protect Your Investment: Wilhelmsen Unitor Manometer/Regulator Gauge Guard+ 619379

Keep your welding operations running smoothly and safely with the Wilhelmsen Unitor Manometer/Regulator Gauge Guard+ 619379. This essential accessory shields your regulator's pressure gauge – a critical component for accurate gas flow control – from accidental bumps, drops, and flying debris commonly encountered in busy welding environments.

Built to last, the Gauge Guard+ is constructed from high-strength materials that can withstand the rigors of the workshop. Wilhelmsen, a trusted name in welding safety for over a century, ensures this guard delivers the quality and durability you expect.

Features
Heavy-duty construction: Built to withstand the harsh environments of welding shops
Impact protection: Shields pressure gauge from accidental bumps, drops, and flying debris
Maintains gauge integrity: Protects against cracks and shatters for accurate readings
Universal fit: Designed to work with most gas regulator models
Easy installation: Quick and simple to attach for immediate protection

Compatibility
Wilhelmsen Unitor 510 Nitrogen (N2) Regulator Wilhelmsen Unitor 510 Nitrogen (N2) Regulator with Flowmeter – 0-1.3 l/min
Wilhelmsen Unitor 510 Carbon Dioxide (CO2) Regulator – 0-20bar
Wilhelmsen Unitor 510 Nitrogen (N2) Regulator – 0-10bar
Wilhelmsen Unitor 510 Oxygen Acetylene Regulator 0-1.5bar
Wilhelmsen Unitor 510 Oxy Acetylene Regulator – 0-10bar
Wilhelmsen Unitor 510 Argon/CO2 Regulator – 0-35l per Min

Specifications
Burst pressure (bar)
60 bar minimum

Operating pressure (bar)
20 bar maximum

Test Pressure (bar)
40 bar

Our Official Wilhelmsen Product Range

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