Bi-directional in-line deflagration flame arrester, short-time burning proof - H 38.2 N | KITO Armaturen KITO Armaturen GmbH - 1
Bi-directional in-line deflagration flame arrester, short-time burning proof - H 38.2 N | KITO Armaturen KITO Armaturen GmbH - 1

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 38.2 N | KITO Armaturen

KITO H 38.2 N In-line Deflagration Flame Arrester

The KITO H 38.2 N is a bidirectional in-line deflagration flame arrester designed for installation in piping connected to vessels, process equipment, or network sections handling flammable gases and vapors. Reference types: KITO EFA-Def0-IIA-…/…-1.6 and EFA-Def0-IIA-…/…-1.6-T / -TT.

Operating Limits

  • Explosion group: IIA1 to IIA, MESG > 0.9 mm
  • Max. operating pressure: 1.6 bar abs.
  • Max. operating temperature: 60 °C
  • Max. ignition source distance: 50 × pipe internal diameter
  • Installation: horizontal or vertical piping
  • Short-time burning: tBT = 1.0 min with one or two PT100, atmospheric conditions

Applications

Used in vapor recovery, tank venting, off-gas lines, and process piping requiring bidirectional protection for IIA group and pressures up to 1.6 bar abs. Compared to 1.2 bar abs. variants, the H 38.2 N is selected where process design specifies higher operating pressure, provided the 60 °C temperature limit is not exceeded.

Dimensions and Connections

Available in NG 100, NG 150, and NG 200, with connections from DN 40 to DN 100. EN flanges: PN 40 for DN 40, PN 16 for larger sizes. Optional ASME B16.5 Class 150 RF connection available.

Construction Materials

  • Body: cast steel 1.0619 or cast stainless 1.4408
  • Gasket: HD 3822 or PTFE
  • Flame arrester element: fully replaceable
  • Casing: galvanized steel or stainless 1.4571
  • KITO grid: stainless 1.4310 or 1.4571
  • Bolts/nuts: galvanized steel or A2
  • Sensor: PT100, 3/8" connection, material 1.4571

Selection Criteria

Selection must confirm explosion group, pressure, temperature, DN, flow rate, and allowable pressure drop. Flow curves are provided for air at ρ = 1.29 kg/m³, 273 K, atmospheric pressure.

Certification

Type examination certificate per EN ISO 16852 and CE marking in accordance with 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-Def0-IIA-…/…-1.6

KITO® EFA-Def0-IIA-…/…-1.6-T (-TT)

  • For installation into pipes to the protection of vessels and components against deflagration of flammable liquids and gases.
  • Approved for all substances of explosion groups IIA1 to IIA with a maximum experimental safe gap (MESG) > 0.9 mm.
  • Bi-directionally working in pipes, whereby an operating pressure of 1.6 bar abs. and an operating temperature of 60 °C must not be exceeded.
  • The distance between a potential ignition source and the flame arrester must not exceed 50 times the inner pipe diameter.
  • The installation of the deflagration flame arrester into horizontal and vertical pipes is permissible.
  • When equipped with one or two temperature sensors, the devices are protected under atmospheric conditions against a short time burning by a burning time tBT = 1.0 min.
  • If only one temperature sensor, then it is to be placed on the device side where a burning could be expected.