WITT Flashback Arrestors for reliable protection against dangerous reverse gas flow and
flashbacks according to EN 730-1 / ISO 5175. Every Arrestor 100% tested.

The best Flashback Arrestors in the world

• a large surface area flame arrestor FA of stainless steel construction extinguishes any dangerous flashback entering the device in any direction
• a temperature-sensitive cut-off valve TV extinguishes sustained flashbacks long before the internal temperature of the arrestors reaches a dangerous level
• a spring-loaded check valve NV prevents slow or sudden reverse gas flow from forming explosive mixtures in the gas supply
• a filter at the gas inlet protects the arrestor against dirt contamination, extending the service life

Operation / Usage:

• Flashback Arrestors are used to protect gas cylinders and pipeline outlet points (hoses and any equipment) against dangerous reverse gas flow and flashbacks
• for pipeline outlets and single cylinders with high users for example supply units for gas cutting machines
• WITT Flashback Arrestors may be mounted in any position /orientation
• only one piece of equipment may be connected to a single Flashback Arrestor
• the maximum ambient/working temperature is 70 °C / 158 °F

Maintenance:

• annual testing of the check valve, body leak tightness and flow capacity is recommended
• WITT is happy to supply special test equipment
• Flashback Arrestors are only to be serviced by the manufacturer; the dirt filter may be replaced by competent staff

Approvals
Company certified to ISO 9001 and PED 97/23/EC Module H
CE-marked in accordance with PED 97/23/EC

147-081
147-072
147-069
147-001
147-003
147-065
147-068