Flame Arresters

Flame arresters are used in pipelines, tank vents, and vapor-handling systems where ignition of flammable gases or vapor/air mixtures is possible. Their function is based on a flame-quenching element that removes heat from the combustion front and prevents flame transmission to protected sections of piping, vessels, tanks, or process equipment.

This category includes in-line flame arresters for atmospheric deflagration, detonation arresters, and vent caps with integrated flame arresters for controlled tank breathing. Selection should be based on the hazard type—deflagration or detonation—the location of the potential ignition source, flow direction, gas explosion group, MESG, operating pressure, temperature, nominal size, allowable pressure loss, and accessibility for inspection of the arrester element.

Available configurations include unidirectional and bidirectional flame arresters, short-time burning proof or endurance burning proof designs, with flanged connections, DIN drilling, pressure ratings such as PN10, PN16, or PN40, and body materials including 1.0619, 1.4301, 1.4408, and 1.4571.

For deflagration service, certain versions are specified for explosion groups IIA or IIA1, with limits on operating pressure, temperature, and distance from the possible ignition source. Representative KITO deflagration types are referenced with limits of 1.1–1.2 bar abs., 60°C, and pipe length restrictions expressed either as L/D ratio or up to 50 times the internal pipe diameter, depending on design.

Maintenance should include inspection for fouling, corrosion, mechanical deformation of the flame arrester element, vent passage cleanliness, flange tightness, and operation of optional temperature sensors. In services involving polymerizing media, solids, or condensate formation, inspection frequency should be increased, since reduction of free flow area raises pressure drop and can change the protection characteristics of the device.

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Inline Detonation
Inline Detonation
Inline Deflagration
Inline Deflagration
Burning Proof Ventilation
Burning Proof Ventilation
Uni-directional in-line deflagration flame arrester, short-time burning proof - H 26 N | KITO Armaturen | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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 | Philippopoulos s.a.

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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Flame Arresters