Flame Arresters
Flame arresters are a mechanical devices installed in-line or end of line to quench the propagation of a flame and prevent it from igniting potentially explosive mediums inside or outside of pipes and vessel. In-line flame arresters are often employed in-series with a pipe, and end of line flame arresters are generally positioned on the vent or outlet of a vessel. Flame arresters may also be paired with a pressure/vacuum relief valve to provide emissions control and flame protection in one device.
A flame arrester extinguishes a flame by passing it through a series of internal channels that cools the inlet flame down to a point that can no-longer sustain ignition.
Deflagration or Deflagration?
Depending on the flame front's rate of propagation you may choose to use a detonation type flame arrester over a Deflagration type flame arrester. Deflagration is typically used for applications with propagation rates below the speed of sound (subsonic), where detonation type arresters address speeds above the speed of sound (supersonic). Detonation arresters are heavier duty items that can handle both conditions however are often more restrictive in their capacity for a given line size.
Detonation arresters may also be helpful in applications where the unprotected line includes bends, tees or other elements that create turbulence and flow restriction. These have the effect of increasing the speed and intensity beyond what a deflagration type arrester can handle. Jump to detonation types
Flame Control CatalogueCombined Valve and Flame Arrester Combination Catalogue
Model 76C-AF
Flame Arrester
- Flame arrester element geometry maximizes flame quenching capability while minimizing pressure drop
- Spiral-wound, crimped ribbon flame element
- Flame elements made standard with premium 316SS material reducing corrosion
- Spiral-wound, crimped ribbon flame element
- Bi-directional with respect to flow and ignition source
- High operating pressures
- Certified to ISO 16852:2010
The Groth Model 76C-AF is designed to inhibit flame propagation in gas piping systems and to protect low pressure tanks containing flammable liquids. Arresters protect low flash point liquids from external sources of ignition providing increased fire protection and safety.
Model 77E-AF
Groth Flame Arrester
The Groth Model 77E-AF is designed to inhibit flame propagation in gas piping systems and to protect low pressure tanks containing flammable liquids. Arresters protect low flash point liquids from external sources of ignition providing increased fire protection and safety.
- Flame arrester utilizes multiple-element technology, in order to maximize flame quenching capability while minimizing pressure drop
- Removable element housing for ease of maintenance
- Spiral-wound, crimped ribbon flame elements
- Flame elements made standard with premium 316SS material, reducing corrosion
- Bi-directional with respect to flow and ignition source
- MESG of 0.65, IIB3 compatible, Ideal for Ethanol.
- Certified to ISO 16852:2016
Model 7678
Groth Flame Arrester
The Groth Model 7678 is an End-Of-Line Vertical Deflagration Flame Arrester designed to inhibit flame propagation in gas piping systems and to protect low pressure tanks containing flammable liquids. Arresters protect low flash point liquids from external sources of ignition providing increased fire protection and safety.
- Weather-hood
- Unique recessed seating for superior protection
- Quick and easy maintenance
- Modular design allows easy and cost-effective flame-bank maintenance
- Flame arrester element geometry maximises flange quenching capability while minimising
pressure drop - Proven spiral-wound, crimped-ribbon flame element provides reliable protection
- Certified to ISO 16852:2010
Model 7588
Groth Flame Arrester
The 7588 model is a In-Line Vertical Deflagration Flame Arrester designed to inhibit flame propagation in gas piping systems and to protect low pressure tanks containing flammable liquids. Arresters protect low flash point liquids from external sources of ignition. This provides increased fire protection and safety.
- Vertical Installations
- Burn time tBT 5 minutes per ISO 16852:2010
- Modular design allows easy and cost-effective flame bank maintenance
- Flame arrester element geometry maximizes flame quenching capability while minimizing
pressure drop - Proven spiral-wound, crimped-ribbon flame element provides reliable flame protection
- Certified to ISO 16852:2010
Model 7688
Groth Flame Arrester
The Groth Model 7688 is an In-Line Vertical Deflagration Flame Arrester designed to inhibit flame propagation in gas piping systems and to protect low pressure tanks containing flammable liquids. Arresters protect low flash point liquids from external sources of ignition providing increased fire protection and safety.
- Vertical Installations
- Burn time tBT 10 minutes for 2" thru 6" and 2 minutes for 8" thru 12" per ISO 16852:2010
- Modular design allows easy and cost-effective flame bank maintenance
- Flame arrester element geometry maximizes flame quenching capability while minimizing
pressure drop - Proven spiral-wound, crimped-ribbon flame element provides reliable flame protection
- Certified to ISO 16852:2010
Model 8800A
Combined Pressure/Vacuum Valve and Flame Arrester
The Model 8800A Pressure/Vacuum Valve & Flame Arrester combination units are designed to protect your tank from damage created by over- pressure or excessive vacuum, at the same time that they provide protection from externally caused sources of heat and ignition. The result is increased fire protection and safety.
- Cushioned Air Seating
- Fluoropolymer seating diaphragms are standard to minimize sticking caused by resinous
vapors and atmospheric moisture - Self draining housing and drip rings
- Spiral-wound, crimped ribbon flame element
- Modular Construction
- Weather hood
Model 8820A
Combined Pressure/Vacuum Valve and Flame Arrester - Pipe away
The Model 8820A combination units are used for pressure and vacuum relief where vapors must be piped away. They are designed to protect your tank from damage created by overpressure or excessive vacuum, at the same time that they provide protection from externally caused sources of heat and ignition. The result is reduced emissions level and increased fire protection and safety.
- In-line and End of line applications
- Cushioned Air Seating
- Fluoropolymer seating diaphragms are standard to minimize sticking caused by resinous
vapors and atmospheric moisture - Self draining housing and drip rings
- Spiral-wound, crimped ribbon flame element
- Modular Construction
L76T-UF
LaMOT Threaded In-Line Flame Arrester
The L76T-UF model is designed to inhibit flame propagation in gas piping systems and to protect low pressure tanks containing flammable liquids. Arrestors protect low flash point liquids from external sources of ignition. This provides increased fire protection and safety.
- Sizes from 2" to 4" NPT
- Bi-direction with respect to flow and ignition source
- Removable 316SS spiral-wound flame element
Model 7622B
Groth Flame Arrester
The Groth Model 7622B is designed to prevent flashback in small lines carrying flammable gases. They are often used in small pilot lines and are intended for use where the gas flow can be shut off. The units are union type fittings with FNPT connections. An ideal and economical choice for protecting small ethanol tanks and equipment.
- For vertical installations
- Module design allows easy access for inspection and maintenance
- Flame element provides minimal pressure drop without compromising flashback prevention
- IIB compatible
- Certified to ISO 16852:2010
Model 7598
Groth Flame Arrester
The Groth Model 7598 is an In-Line Horizontal Deflagration Flame Arrester designed to inhibit flame propagation in gas piping systems and to protect low pressure tanks containing flammable liquids. Arresters protect low flash point liquids from external sources of ignition to help provide increased fire protection and safety.
- Horizontal installation
- Flame arrester element geometry maximizes flame quenching capability while minimizing
pressure drop - Modular design allows easy and cost-effective flame bank maintenance
- Proven spiral-wound, crimped-ribbon flame element provides reliable flame protection
- Eccentric design allows for horizontal installation to prevent liquid accumulation
- Certified to ISO 16852:2010
Model 7628
Groth Flame Arrester
The Groth 7628 model is designed to inhibit flame propagation in gas piping systems and to protect low pressure tanks containing flammable liquids. Arresters protect low flash point liquids from external sources of ignition which provides increased fire protection and safety.
- Horizontal installation
- Flame arrester element geometry maximizes flame quenching capability while minimizing
pressure drop - Spiral-wound, crimped ribbon flame element
- Modular design allows easy and cost-effective flame bank maintenance
- Compact design keeps weight and installation cost down
- Eccentric design minimizes liquid accumulation
- Certified to ISO 16852:2010
Model 7698
Groth Flame Arrester
The Groth Model 7698 is an In-Line Horizontal Deflagration Flame Arrester designed to inhibit flame propagation in gas piping systems and to protect low pressure tanks containing flammable liquids. Arresters protect low flash point liquids from external sources of ignition. This provides increased fire protection and safety.
- Horizontal installation
- Eccentric design minimizes liquid accumulation
- Flame arrester element geometry maximizes flame quenching capability while minimizing
pressure drop - Spiral-wound, crimped ribbon flame element
- Modular design allows easy and cost-effective flame bank maintenance
- Certified to ISO 16852:2010
Model 7758A
Groth Detonation Flame Arrester
The Groth Model 7758A Deflagration & Detonation Flame Arrester inhibits flame propagation in gas piping systems. The design of the flame arrester makes it ideal to protect liquid storage tanks containing both NEC Group D and Group C vapors (IEC Class IIA and IIB1 through IIB3 vapors).
- Vertical or horizontal installation
- In-line or end-of-line Deflagration
- Stable and unstable detonations
- Burn Time tBT up to 30 minutes
- Bi-directional with respect to flow and ignition source
- Elements are easily removed in-line for cleaning and maintenance and are economical to
replace if necessary - Low pressure drop with multiple element sizes available for each flange size
- High operating pressures
- Certified to ISO 16852:2010
Model 7658A
Groth Detonation Flame Arrester
The Groth Model 7658A Deflagration & Detonation Flame Arrester inhibits flame propagation in gas piping systems. The design makes it ideal to protect liquid storage tanks containing NEC Group D (IEC Class IIA) gases.
- Vertical or horizontal installation
- In-line or end-of-line Deflagration
- Unstable detonations
- Burn Time tBT 10 minutes
- Bi-directional with respect to flow and ignition source
- Elements are easily removed in-line for cleaning and maintenance and are economical to
replace if necessary - Low pressure drop with multiple element sizes available for each flange size
- Certified to ISO 16852:2010
Model 7661
Groth Detonation Flame Arrester
The Groth Model 7661 Deflagration & Detonation Flame Arrester inhibits flame propagation in gas piping systems. The design makes it ideal to protect liquid storage tanks containing NECC Group D (IEC Class IIA) gases with Maximum Experimental Safe Gap (MESG) equal to or greater than 0.90 mm.
- Compact with high flow capacity and low pressure drop
- Elements are easily removed in-line for cleaning and maintenance
- Vertical or horizontal installation
- In-line or end-of-line Deflagration
- Bi-directional with respect to flow and ignition source
- Low pressure drop with multiple element sizes available for each flange size
Model 8400A
Groth Pressure Relief and Flame Trap Assembly
The Groth Model 8400A Pressure Relief and Flame Trap Assembly accomplishes two purposes. It will maintain a predetermined back pressure in order that only surplus gas is flared and it inhibits a possible flame flashback of the flare into the gas control system. A fusible element that is rated at 127 C precludes valve shut-off unless contacted by flame. The visual indicator provides operator with easy adjustments. The proven spiral wound, crimped ribbon flame element provides the best flame quenching performance with the least pressure drop.
- Simple upstream pressure regulation allows for accurate pressure relief
- Adjustable set pressure for easy process pressure relief adjustment
- Prevents pipeline deflagration from damaging tanks, pipelines, and other process equipment
- Corrosion Resistant throughout