Inline Deflagration

Inline deflagration flame arresters are installed in process piping that handles flammable gases or vapors where a potential flame front is expected to propagate as a subsonic deflagration rather than a fully developed detonation. The flame arrester element removes heat from the combustion front and reduces the gas mixture temperature below the limit required to sustain flame propagation, thereby preventing transmission to upstream or downstream sections of the line.

This category includes KITO inline deflagration flame arresters for both unidirectional and bidirectional flow service. Unidirectional designs include types H26N, H26.1N, and H26.2N. Bidirectional designs include series H31N, H32N, H33N, H34N, H35N, H36N, H37N, H39N, H40N, H41N, H42N, H44.1N, H45.1N, and H46.1N. Short-time burning proof and endurance burning proof versions are also available and should be selected based on the ignition scenario, expected flame holding duration, and installation location within the piping system.

Technical selection should be based on gas explosion group, maximum operating pressure and temperature, line size, piping geometry, expected flame propagation direction, allowable pressure loss, and the presence of condensate, fouling, or deposits. The referenced designs include flanged constructions to DIN standards with pressure ratings PN 10, PN 16, and PN 40, and material options including 1.0619, 1.4408, 1.4571, and carbon steel or stainless steel configurations as required by the process medium and corrosion conditions.

During maintenance, the flame arrester element should be inspected periodically for contamination, corrosion, mechanical deformation, and increasing differential pressure. In ATEX applications, the arrester should be assessed as part of the overall explosion protection concept, including pipe length, ignition sources, vent points, isolation valves, and the full hazardous area and ignition risk evaluation.

Uni-directional in-line deflagration flame arrester, short-time burning proof - H 26 N | KITO Armaturen - KITO Armaturen GmbH

Uni-directional in-line deflagration flame arrester, short-time burning proof - H 26 N | KITO Armaturen

Uni-directional in-line deflagration flame arrester, short-time burning proof - H 26 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 26 N Inline Flame Arrestor, Unidirectional Flow The KITO H 26 N is an inline flame arrestor designed for deflagration protection in gas/vapor pipelines, typically installed upstream of thermal oxidizers or vent combustion units. The device operates in a unidirectional flow configuration and is suitable for vapor/air or air/gas mixtures at operating...
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Uni-directional in-line deflagration flame arrester, short-time burning proof - H 26.1 N | KITO Armaturen - KITO Armaturen GmbH

Uni-directional in-line deflagration flame arrester, short-time burning proof - H 26.1 N | KITO Armaturen

Uni-directional in-line deflagration flame arrester, short-time burning proof - H 26.1 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 26.1 N In-line Deflagration Flame Arrester The KITO H 26.1 N is an in-line deflagration flame arrester for vapor/air and gas/air pipelines, primarily used on lines to thermal incineration plants. Technical data specifies a maximum operating pressure of 1.6 bar abs. and temperature up to 200 °C. Application Scope Installed in lines where...
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Uni-directional in-line deflagration flame arrester, short-time burning proof - H 26.2 N | KITO Armaturen - KITO Armaturen GmbH

Uni-directional in-line deflagration flame arrester, short-time burning proof - H 26.2 N | KITO Armaturen

Uni-directional in-line deflagration flame arrester, short-time burning proof - H 26.2 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 26.2 N In-line Deflagration Flame Arrester The KITO H 26.2 N is a unidirectional in-line deflagration flame arrester for vapor/air and gas/air pipelines, primarily used in vent lines to thermal incineration plants. The RV/N-IIA-1000/…-1.2-X08 series operates up to 1.2 bar abs. and 80°C. Suitable for explosion group IIA substances with MESG > 0.9...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 31 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 31 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 31 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 31 N In-Line Deflagration Flame Arrestor The KITO H 31 N is a bidirectional in-line deflagration flame arrestor designed for the protection of tanks, process equipment, and pipeline sections against flame propagation in flammable gases or vaporized liquids. It is suitable for horizontal or vertical installation, with a maximum operating pressure of...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 32 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 32 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 32 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 32 N In-Line Deflagration Flame Arrestor The KITO H 32 N is a bidirectional in-line deflagration flame arrestor designed for installation in piping connected to vessels, process equipment, or network sections handling flammable gases and liquid vapors. The device is engineered to prevent flame transmission in both flow directions within the...
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Bi-directional in-line deflagration flame arrester, endurance burning proof - H 32.1 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, endurance burning proof - H 32.1 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, endurance burning proof - H 32.1 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 32.1 N In-line Deflagration Flame Arrestor The KITO H 32.1 N is a bidirectional in-line deflagration flame arrestor designed for the protection of vessels, equipment, and piping systems containing flammable gases or vapors. Unlike short-time burning variants, this model is tested for stabilized burning and is rated for unlimited endurance burn, as...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 33 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 33 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 33 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 33 N In-Line Deflagration Flame Arrestor The KITO H 33 N is a bidirectional in-line deflagration flame arrestor designed for piping systems connected to vessels, process equipment, or installation sections handling flammable gases and liquid vapors. The series is referenced as KITO EFA-Def0-I-…/…-1.2 and EFA-Def0-I-…/…-1.2-T / -TT. Application...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 33.1 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 33.1 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 33.1 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 33.1 N In-Line Deflagration Flame Arrestor The KITO H 33.1 N is a bidirectional in-line deflagration flame arrestor designed for installation in piping connected to tanks, process equipment, and network sections handling flammable gases or vapors. The series is referenced as KITO CFA-Def0-I-…/…-1.2 and CFA-Def0-I-…/…-1.2-T / -TT. Operating Limits...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 33.3 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 33.3 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 33.3 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 33.3 N In-Line Deflagration Flame Arrester The KITO H 33.3 N is a bidirectional in-line deflagration flame arrester designed for piping systems connected to tanks, process equipment, or installation sections handling flammable gases and vapors. The series is designated as KITO EFA-Def0-I-…/…-1.2-X16 and EFA-Def0-I-…/…-1.2-X16-T / -TT. Operating...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 34 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 34 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 34 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 34 N In-Line Deflagration Flame Arrestor The KITO H 34 N is a bidirectional in-line deflagration flame arrestor designed for the protection of vessels, equipment, and pipeline sections containing flammable gases or vapors. The series is referenced as KITO EFA-Def0-I-…/…-2.5 and EFA-Def0-I-…/…-2.5-T / -TT. Operating Limits Explosion group: IIA1,...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 34.2 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 34.2 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 34.2 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 34.2 N In-Line Deflagration Flame Arrestor The KITO H 34.2 N is a bidirectional in-line deflagration flame arrestor designed for pipelines conveying flammable gases or vapors. It is installed to protect vessels, process equipment, and pipeline sections from flame transmission within piping systems. This series corresponds to KITO types...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 35 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 35 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 35 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 35 N In-Line Deflagration Flame Arrestor The KITO H 35 N is a bidirectional in-line deflagration flame arrestor designed for installation in piping systems to prevent flame transmission in flammable gases and vapor service. It is suitable for the protection of tanks, process equipment, and piping sections. The series corresponds to types KITO...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 35.1 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 35.1 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 35.1 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 35.1 N In-line Deflagration Flame Arrestor The KITO H 35.1 N is a bidirectional in-line deflagration flame arrestor designed for installation in piping connected to vessels, process equipment, or network sections handling flammable gases and vapors. This model corresponds to KITO CFA-Def0-IIA-…/…-1.2 and CFA-Def0-IIA-…/…-1.2-T / -TT variants....
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 36 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 36 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 36 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 36 N In-Line Deflagration Flame Arrester The KITO H 36 N is a bidirectional in-line deflagration flame arrester designed for pipelines conveying flammable gases or vapors. It is used to protect vessels, process equipment, and pipeline sections from flame transmission within piping systems. Reference types include KITO EFA-Def0-IIA-…/…-…-X10 and...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 37 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 37 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 37 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 37 N In-Line Deflagration Flame Arrestor The KITO H 37 N is a bidirectional in-line deflagration flame arrestor designed for installation in piping connected to vessels, process equipment, or network sections handling flammable gases and liquid vapors. Reference types: KITO EFA-Def0-IIA-…/…-…-X16 and EFA-Def0-IIA-…/…-…-X16-T / -TT. Operating...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 38.2 N | KITO Armaturen - KITO Armaturen GmbH

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

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 38.2 N | KITO Armaturen
KITO Armaturen GmbH
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...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 39 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 39 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 39 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 39 N In-line Deflagration Flame Arrestor The KITO H 39 N is a bidirectional in-line deflagration flame arrestor designed for pipelines conveying flammable gases or vapors. It is intended for the protection of vessels, process equipment, and pipeline sections where ignition sources may be present on either side of the device. Reference type: KITO...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 39.1 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 39.1 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 39.1 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 39.1 N In-Line Deflagration Flame Arrestor The KITO H 39.1 N is a bidirectional in-line deflagration flame arrestor designed to prevent flame transmission in piping and vessel sections handling flammable gases or vapors. Reference types: KITO CFA-Def0-IIB3-…/…-1.2 and CFA-Def0-IIB3-…/…-1.2-T / -TT. Operating Limits Explosion group: IIA1 to IIB3...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 39.2 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 39.2 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 39.2 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 39.2 N Inline Deflagration Flame Arrestor The KITO H 39.2 N is a bidirectional in-line deflagration flame arrestor, short-time burning proof, designed for the protection of vessels and pipeline sections handling flammable gases or vapors. Reference type: KITO EFA-Def0-IIB3-…/…-1.2-X10, with -T / -TT versions for PT100 temperature sensors. Operating...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 39.3 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 39.3 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 39.3 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 39.3 N In-line Deflagration Flame Arrestor The KITO H 39.3 N is a bidirectional in-line deflagration flame arrestor, short-time burning proof, designed for installation in piping systems conveying flammable gases or vapors. Reference type: KITO EFA-Def0-IIC-…/…-1.2. Versions -T / -TT are equipped with PT100 temperature sensors. Operating Limits...
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Bi-directional in-line deflagration flame arrester, endurance burning proof - H 40.1 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, endurance burning proof - H 40.1 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, endurance burning proof - H 40.1 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 40.1 N In-line Deflagration Flame Arrestor The KITO H 40.1 N is a bidirectional in-line deflagration flame arrestor, endurance burning proof, designed for installation in piping systems conveying flammable gases or vapors of flammable liquids. Reference types: KITO RG-Def-I-…-1.3 and RG-Def-I-…-1.3-T / -TT. Operating Limits Explosion group: IIA1,...
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Bi-directional in-line deflagration flame arrester, endurance burning proof - H 40.2 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, endurance burning proof - H 40.2 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, endurance burning proof - H 40.2 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 40.2 N In-line Deflagration Flame Arrestor The KITO H 40.2 N is a bidirectional in-line deflagration flame arrestor with flanged connections, designed to prevent flame transmission in piping and vessel sections handling flammable gases and vapors. Reference types: KITO RG-Def-I-…-1.3 and RG-Def-I-…-1.3-T / -TT. Operating Limits Explosion group:...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 41 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 41 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 41 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 41 N In-Line Deflagration Flame Arrestor The KITO H 41 N is a bidirectional in-line deflagration flame arrestor with threaded connections, designed for the protection of vessels and pipeline sections handling flammable gases or vapors from flammable liquids. Reference types: KITO RG-Def-IIA-…-1.2 and RG-Def-IIA-…-1.2-T / -TT. Operating Limits...
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Bi-directional in-line deflagration flame arrester, short-time burning proof - H 41.0 N | KITO Armaturen - KITO Armaturen GmbH

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 41.0 N | KITO Armaturen

Bi-directional in-line deflagration flame arrester, short-time burning proof - H 41.0 N | KITO Armaturen
KITO Armaturen GmbH
KITO H 41.0 N In-line Deflagration Flame Arrestor The KITO H 41.0 N is a bidirectional in-line deflagration flame arrestor with flanged connections, designed for the protection of vessels, equipment, and piping sections against flame transmission in flammable gas or vapor mixtures. Reference types: KITO RG-Def-IIA-…-1.2 and RG-Def-IIA-…-1.2-T / -TT....
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