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Flashback Arrestor 623N/NU

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Flashback arrestor, certified to EN 730-1 / ISO 5175 for maximum flows

  • highest quality from the world market leader
  • safety elements: flame arrestor [FA], check valve [NV], temperature-sensitive cut-off valve [TV]
  • every arrestor 100% tested
  • with DVGW approval
  • 2.42 X 7.18- 7.61 inches, 72-80.04 oz
  • fuel gases max. 14,331 scfh (free flow-off)
  • air max. 11,825 scfh (free flow-off)
  • Information
  • Applications
  • Downloads
  • Accessories

WITT Flashback Arrestors for reliable protection against dangerous reverse gas flow and flashbacks in accordacne 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 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)
  • also in thermal processing systems against dangerous reverse gas flow and flashbacks
  • 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 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

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

Flashback Arrestor 623N/NU is used in following areas:

Here you find all downloads for the product.

Pipeline Fittings

For flashback arrestors models 270N/NU and 623N/NU, as well as check valve model 70

Test Rig 722

For the annual testing of WITT flashback arrestors and check valves

Products

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Headquarters: +49 (0)2302-8901-0
WITT USA: +1 770-664-4447

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