Bi-directional in-line detonation flame arrester, short-time burning proof - G 27 N | KITO Armaturen | Philippopoulos s.a.
Bi-directional in-line detonation flame arrester, short-time burning proof - G 27 N | KITO Armaturen | Philippopoulos s.a.

Bi-directional in-line detonation flame arrester, short-time burning proof - G 27 N | KITO Armaturen

KITO G 27 N – Bidirectional Inline Detonation Flame Arrester

The KITO® RG-Det4-IIB3-…-1.2 / -T / -TT is a bidirectional inline detonation flame arrester with threaded connections, designed for the protection of vessels and equipment against stable detonation in piping systems conveying flammable gases or vapors of flammable liquids. Tested and certified as a detonation flame arrester type 4.

Operating Limits

  • Explosion groups: IIA1 to IIB3
  • MESG: ≥ 0.65 mm
  • Max. operating pressure: 1.2 bar abs.
  • Max. operating temperature: 60 °C
  • Endurance to stabilized burning: BT ≤ 6.0 min
  • Installation: horizontal or vertical piping

Connections and Thermal Monitoring

Thread sizes from G 1/8" to G 2" are available. -T and -TT variants include a PT100 sensor with 1/4" connection, stainless steel 1.4571. For stabilized burning detection, a sensor is required on each side exposed to potential ignition. PT100 is not available for G 1/8" to G 3/8" connections.

Construction Materials

  • Body: carbon steel or stainless 1.4571
  • Gasket: HD 3822 or PTFE
  • KITO element: fully replaceable
  • Shell / mesh: 1.4301 / 1.4310 or 1.4571 / 1.4571
  • Bolts / nuts: A2 or A4

Application Selection

The G 27 N differs from G 26 N in explosion group coverage, as it is rated up to IIB3 (G 26 N: IIA only). Selection must consider MESG, flow rate, pressure drop, gas density, temperature, operating pressure, and PT100 requirement. Flow curves are based on air ρ = 1.29 kg/m³ at 273 K.

FAQ

Does it cover group IIC?
No. Certification is limited to IIB3.

Is it a check valve?
No. It is a passive flame transmission barrier, not a non-return valve.

Certification?
Type tested to EN ISO 16852 and CE marked per ATEX 2014/34/EU.

Datasheet and documents

Description

KITO® RG-Det4-IIB3-…-1.2

KITO® RG-Det4-IIB3-…-1.2-T (-TT)

  • For installation into pipes to the protection of vessels and components against stable detonation of flammable liquids and gases.
  • Tested and approved as detonation flame arrester type 4.
  • Approved for all substances of explosion groups IIA1 to IIB3 with a maximum experimental safe gap (MESG) ≥ 0.65 mm.
  • Bi-directionally working in pipes, whereby an operating pressure of 1.2 bar abs. and an operating temperature of 60 °C must not be exceeded.
  • All sizes are tested against “stabilized burning” and withstand this up to a max. burn time BT ≤ 6.0 min.
  • To detect a “stabilized burning” a temperature sensor must be installed at each endangered side.
  • Mounting is acceptable in any position, in horizontal as well as in vertical pipes.