Bi-directional in-line detonation flame arrester, short-time burning proof - G 24.3 N | KITO Armaturen | Philippopoulos s.a.
Bi-directional in-line detonation flame arrester, short-time burning proof - G 24.3 N | KITO Armaturen | Philippopoulos s.a.

Bi-directional in-line detonation flame arrester, short-time burning proof - G 24.3 N | KITO Armaturen

KITO G 24.3 N – Bidirectional In-Line Detonation Flame Arrester

The KITO® EFA-Det4-IIB3-…/…-1.2-X16 is a bidirectional in-line flame arrester designed for pipelines conveying flammable gases or vapors of flammable liquids. It is intended for the protection of vessels and equipment against stable detonation and is 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: 160 °C
  • Installation: Horizontal or vertical pipeline
  • Protection: Bidirectional; suitable where detonation may originate from either side of the line

Thermal Monitoring

Variants -T and -TT are equipped with one or two PT100 temperature sensors. For single-sensor units, installation should be on the side where ignition is expected. Dual-sensor units monitor both sides for short-duration burning.

Dimensions and Connections

Available in NG 65 to NG 300, with connections DN 25 to DN 150. DN 25–40: PN 40; DN 50–150: PN 16. Standard flange: EN 1092-1 type B1; optional ASME B16.5 Class 150 RF.

Materials of Construction

  • Body: Cast steel 1.0619 or cast stainless 1.4408
  • Gasket: HD 3822 or PTFE
  • KITO element: Fully replaceable
  • Shell/mesh: Stainless 1.4571
  • Bolts/nuts: A2
  • PT100: 3/8" connection, material 1.4571

Application Selection

G 24.3 N is selected for gases/vapors up to IIB3 where bidirectional detonation protection and operating temperatures up to 160 °C are required. DN selection must consider flow, pressure drop, gas density, MESG, operating pressure/temperature, and PT100 requirement. Flow curves are based on air ρ = 1.29 kg/m³ at 273 K.

FAQ

Covers IIC?
No. Approval 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.

Standard (Options)
  • DIN
Connection (Options)
  • Flanged
Material (Options)
  • 1.0619
  • 1.4408
Pressure Rating (Options)
  • PN 16
  • PN 40

Datasheet and documents

Description

KITO® EFA-Det4-IIB3-…/…-1.6-X16

KITO® EFA-Det4-IIB3-…/…-1.6-X16-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 1.6 bar abs. and an operating temperature of 160 °C must not be exceeded.
  • The installation of the detonation flame arrester into horizontal and vertical pipes is permissible.
  • Provided with one or two temperature sensors (PT 100) the armature is certified against short time burning from one or both sides.
  • If only one thermal sensor is attached, it must be installed into that part of the body from which a fire is expected.