Flashback Arrestor RF53NSK

Flashback Arrestor RF53NSK

Universal flashback arrestor, certified to EN 730-1 / ISO 5175, with the integrated coupling body

– highest quality from the world market leader
– safety elements: flame arrestor [FA], temperature-sensitive cut-off valve [TV], check valve [NV], filter on the gas inlet
– every arrestor 100% tested
– BAM certified UL listed
– 1.0 X 4.3 inches, 8.75 oz
– acetylene max. 459 scfh (free flow-off)
– fuel gases max. 2,401 scfh (free flow-off)
– oxygen max. 6,603 scfh (free flow-off)

Product of WITT 

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WITT RF Flashback Arrestors for reliable protection against dangerous reverse gas flow and flashbacks in accordance with 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:

● RF 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
● 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


● 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

● Company certified to ISO 9001


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Flashback Arrestor RF53NSK