• A flashback happens when a flame burns back into the torch blowpipe and travel back along one of the gas hoses, & into your gas cylinders.
• A flashback can burn inside of your hose and cause serious damage, and we have witnessed serious flashbacks that cause equipment to melt, explosion, personnel burns
• A flashback arrestor is a safety device that stops the flame from re-entering your handpiece, hoses and gas cylinders.
• Also inside a flashback arrestor is a gas non-return valve

Periodic Testing
AS 4839
Recommends
functional testing to be
carried out at 6
monthly intervals by a
technically qualified
person. Flash
arrestors are tested
yearly as detailed in
AS 4603
Progas perform onsite testing of gas
equipment in accordance with AS 4839
The safe use of portable and mobile
oxy-fuel gas systems for welding,
cutting, heating and allied processes.

The Following Is
Tested
• Regulators
• Flashback Arrestors
& Non-Return Valves
• Hose Assemblies
• Blowpipes, Mixers &
Attachments

Illawarra Progas Solutions perform onsite testing using the Ibeda flashback arrestor testing machine in accordance with Australian Standard 4603.
The following Is Tested
•
Through Flow
•
Reverse Flow
•
Leak Tightness
•
Labelling of the arrestor for compliance
Periodic Testing
AS 4603: 3.3
Testing on flashback Arrestors in service shall be carried out at minimum interval of 12 months

The Following Is Tested
Every 6 Months
• Flexible Connectors
• Inspections for work
hardening of copper
Connections
• Safety Devices
• Valves, glands & joints
of all types
• Filters
• Pressure Regulators
• Every 12 Months
• Leak testing of all piping
at the designated
operating pressure
under static conditions.
• Functioning of
Flashback Arrestors and
non-return valves