Flashback Arrestor 85-20

Standard flashback arrestor, certified to DIN EN ISO 5175-1, for high flows

highest quality from the world market leader
safety elements: flame arrestor [FA], temperature-sensitive cut-off valve [TV], check valve [NV]
every arrestor 100% tested
2.44 X 5.16 inches, 51.15 oz
acetylene max. 1,588 scfh (free flow-off)
fuel gases max. 11,436 scfh (free flow-off)
oxygen max. 11,754 scfh (free flow-off)

This model is also available in Stainless Steel

WITT Flashback Arrestors for reliable protection against dangerous reverse gas flow and
flashbacks according to DIN EN ISO 5175-1.

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

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 158 °F

Maintenance:

annual testing of the non-return 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

Approvals
Company certified to ISO 9001

Cleaned for Oxygen Service according to EIGA IGC Doc 13/12/E: Oxygen Pipeline and Piping Systems

149-001

149-002

149-003

149-004

149-014