WITT 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
• 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 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) with high flow against dangerous flashbacks
• without check valve for lower working pressures with low pressure drop i.e. before and after
  analyzers
• ideal for use with corrosive gases in the chemical industry, process technology or in laboratories
• WITT Flashback Arrestors may be mounted in any position/orientation
• the maximum ambient/working temperature is 70 °C / 158 °F

Maintenance:

• annual testing of the 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