Model: DA-G
Features:
* Bidirectional
* Modular design
* The individual FLAMEFILTER can be quickly removed and installed
* The individual FLAMEFILTER are easy to service and replace
* Different application possibilities
* Cost efficient spare parts
* Possible installation of temperature sensors

The PROTEGO DA-G series is a compact in-line detonation flame arrester for installation in pipes with diameters up to 2“, and is used, for example, in industrial applications such as gas analysis lines.
Once a detonation enters the flame arrester, energy is absorbed from the shock wave, and the flame is extinguished in the narrow gaps of the original FLAMEFILTER.

Model: DR/SV
Features:
• Protects against stabilised burning
• No expensive emergency switch-offs are required
• Temperature monitoring is not necessary
• Minimum number of FLAMEFILTER
• Easy to maintain
• The individual FLAMEFILTER can be quickly removed and installed
• The FLAMEFILTER can be individually replaced
• Cost efficient spare parts
• Provides protection from deflagrations and stable detonations
• Ideal protective system for vacuum pumps

The PROTEGO DR/SV flame arrester series ideally combines the function of a detonation arrester with the advantages of a cut-off valve. In case of ignition, the fire can be stabilised within the flame arrester when the flammable gas continues to flow. Inside the detonation arrester, is a valve that closes in case of fire, stops the additional supply of fuel and extinguishes the flames. Temperature sensors in combination with an emergency switch off do not have to be installed when a type PROTEGO DR/SV device is used. This device is particularly useful for the intake-side protection of compressors and pumps.
The flame arrester protects against deflagrations and stable detonations. It can be installed anywhere in the pipe independently from the distance of the potential ignition source.

Model: DA-E
Features:
• Eccentric design prevents the collection of condensate
• The modular design enables each individual FLAMEFILTER to be replaced
• Easy maintenance with quick removal and installation of FLAMEFILTER
• Cost efficient spare parts
• Eccentric design allows installation in close to wall pipes
• Bidirectional operation as well as any flow direction and installation position
• Protects from deflagrations and stable detonations
• Possible installation of temperature sensors

The PROTEGO DA-E series of detonation arresters is distinguished by its eccentric housing shape. When condensate accumulates within the PROTEGO flame arrester unit, the design enables the liquid to drain without collecting large amounts in the housing. The eccentricity of the device has decisive advantages in comparison to the classic flame arresters when pipes are installed close to the wall.
The detonation arrester is symmetrical and offers bidirectional flame arresting.

Model: DA-SB & DA-SB-PTFE
Features:
• Optimised performance from the patented Shock Wave Guide Tube Effect (SWGTE)
• Less number of FLAMEFILTER® from the use of the patented shock tube (SWGTE)
• The modular design enables each individual FLAMEFILTER to be replaced
• Different series allow scalable pressure loss across the surface of the FLAMEFILTER
• Minimum pressure loss and associated low operating and life-cycle costs
• Cost efficient spare parts
• Service-friendly design
• Expanded application range for higher operating temperatures and pressures
• Bidirectional operation as well as any direction of flow and installation position
• Installation of temperature sensors are possible

The in-line detonation flame arresters type PROTEGO DA-SB are the newest generation of flame arresters. On the basis of fluid dynamic, explosion dynamics calculation and decades of experience from field tests, a product line was developed that offers minimum pressure loss and maximum safety. The flame arrester uses the Shock Wave Guide Tube Effect (SWGTE) to optimally decouple the flame front and shock wave. The result is an in-line detonation arrester without a classic shock absorber; in addition the use of FLAMEFILTER is minimised.
The devices are symmetrical and offer bidirectional flame arresting for deflagrations and stable detonations.

Model: DR/ES & DR/ES-V & DR/ES-PTFE
Features:
• Compact design
• Minimum number of FLAMEFILTER due to shock absorber technology or optimal geometry
• Design for IIB3
• The device can be serviced without disconnecting the pipe
• The individual FLAMEFILTER can be quickly removed and installed
• Cost efficient spare parts
• Provides protection from deflagrations and stable detonations
• Through right angle design no pipe elbows are needed Works for nearly any flammable gas and gas mixture
• Low life-cycle costs

The PROTEGO DR/ES series in-line detonation flame arrester with connection size up to ¾“ is ideal for installation in small pipes and to protect equipment such as gas analysers. The device protects against deflagrations and stable detonations. It can be installed anywhere in the pipe no matter what the distance is from the potential ignition source. The small and compact flame arrester has a right angle design.
Once a detonation enters the flame arrester, energy is absorbed from the detonation shock wave by diversion mainly through the shock absorber before the flame is extinguished in the narrow gaps of the original FLAMEFILTER.

Model: DR/SBW
Features:
• Particularly service-friendly design
• Minimum number of FLAMEFILTER due to use of effective shock absorber
• Minimum pressure loss and hence low operating and lifecycle costs
• The modular design enables each individual FLAMEFILTER to be exchanged
• Cost efficient spare parts
• Bidirectional operation as well as any flow direction and installation position
• Expanded application range for higher operating temperatures and pressures
• Installation of temperature sensors possible

In the development of the PROTEGO® DR/SBW in-line detonation flame arrester, special effort was made to ease future maintenance of the flame arresters. The PROTEGO flame arrester unit can be removed and cleaned within moments without having to disassemble the piping. The effective shock absorber of the device and elaborate housing geometry reduces the number of flame arrester elements to a minimum.
The device is symmetrical and offers bidirectional flame arresting protecting from stable detonations and deflagrations.

Model: LDA-W Liquid Detonation Arrester
Features:
• The device is easily accessible since it is mounted on the containers outside
• Minimum risk of soiling
• Low pressure loss
• Provides protection from deflagrations and stable detonations
• Useful for nearly all flammable liquids
• Meets TRbF requirements
• Maintenance friendly design also useable as strainer

The type PROTEGO LDA-W liquid detonation flame arrester was developed for storage container filling lines that are not continuously filled with product and sometimes contain a combustible mixture. The device is installed outside of the container in the filling line. If the explosive atmosphere is ignited, the device prevents the combustion from travelling into the tank. The PROTEGO LDA-W series of liquid detonation flame arresters functions according to the siphon principle in which the liquid product serves as a barrier against flame propagation.

Model: LDA-WF(W)
Features:
• The device is easily accessible since it is mounted on the containers outside
• Siphon protection offers a high degree of safety
• Minimum risk of soiling
• Low pressure loss
• Provides protection from deflagrations and stable detonations
• Useful for nearly all flammable liquids
• Meets TRbF requirements

The PROTEGO® LDA-WF(W) series of liquid detonation flame arresters was developed for storage container filling lines that are not continuously filled with product and sometimes contain a combustible mixture. The integrated siphon protection with PROTEGO flame arrester unit additionally prevents the liquid in which the lines are immersed from being siphoned off while the container is being drained.

Model: LDA
Features:
• Simple construction that helps prevent soiling
• Low pressure loss
• Provides protection from deflagrations and stable detonations
• Useful for nearly all flammable liquids
• Meets TRbF requirements
• Deliverable with different outlets

The PROTEGO LDA series of liquid detonation arresters was developed for storage tank filling lines that are not continuously filled with product and sometimes contain a combustible mixture. The device is installed inside the tank at the end of the line and prevents the combustion from being transferred into the tank if the explosive atmosphere ignites. The liquid detonation arresters function according to the siphon principle in which the liquid product serves as a liquid barrier to flame propagation.

Model: LDA-F
Features:
• Siphon protection offers a high degree of safety
• Minimum risk of soiling
• Low pressure loss
• Provides protection from deflagrations and stable detonations
• Useful for nearly all flammable liquids
• Meets TRbF requirements
• Deliverable with different outlets

The PROTEGO LDA-F series of liquid detonation arresters was developed for storage tanks filling and drain lines that are not continuously filled with product and sometimes contain a combustible mixture. The integrated siphon protection with PROTEGO flame arrester unit additionally prevents the liquid in which the lines are immersed from being siphoned off while the container is being drained.

Model: EF/V
• Almost service-free
• The check valve makes it easier to start the pump
• Provides protection from deflagrations and stable detonations
• Applicable to nearly all flammable liquids
• Meets TRbF 20 requirements
• The special strainer prevents solid particles from entering

The PROTEGO EF/V-IIB3 detonation-safe foot valve protects the suction line in a storage tank. The nearly service-free device is installed at the end of the emptying line within the tank. When a pump draws, the valve opens at an approximate underpressure of 30 mbar / 12 In W.C. . When the pump is turned off, the device functions as a check valve and prevents the line from emptying. This is very helpful when the pump is restarted.
Combustible mixtures can arise in filling and drain lines of storage containers that are not always filled with product. With the ignition of the explosive atmosphere, highly accelerated pipe deflagration or detonations can arise. The detonation-proof foot valve prevents the combustion from being transmitted into the tank and destroying it. The design of the foot valve ensures that the strainer is always filled with residual product. Together with the special valve design, this combination prevents flame flash back from the inside out.

Model: BR/TS
Features:
• Meets all ADNR requirements
• Flat design
• The emergency venting with the flexibly mounted flame arrester enables use even in bad weather conditions as well as with contaminated products
• Extraordinarily easy to service
• The design of the PROTEGO flame arrester unit enables individual FLAMEFILTER to be replaced
• Cost efficient spare parts
• We offer support in calculating loading and unloading rates
• Applicable for nearly all flammable liquids
• May be used as maintenance and cleaning hatch

The type PROTEGO BR/TS-250-IIB3 detonation flame arrester was specially developed for protecting tankships and can also be used for containers. These devices are specially used on tank ships for inland navigation or coastal shipping. The device is installed on the tank or a pipe section connected to the tank with a nominal size of 250 mm / 10" and connected to the gas balancing line (DN 80 / 3"). The individual tanks connected via the gas balancing line are technically decoupled by the detonation arresters and protected.

For unstable detonation

Model: DA-UB
• Optimised performance from the patented Shock Wave Guide Tube Effect (SWGTE)
• Less number of FLAMEFILTER from the use of the patented shock tube (SWGTE)
• The modular design enables each individual FLAMEFILTER to be exchanged
• Different series allow scalable pressure loss across the surface of the FLAMEFILTER
• Minimum pressure loss and associated low operating and life-cycle costs
• Cost efficient spare parts
• Service-friendly design
• Expanded application range for higher operating temperatures and pressures
• Bidirectional operation as well as any direction of flow and installation position
• Possible installation of temperature sensors

The in-line detonation flame arresters type PROTEGO DA-UB are the newest generation of flame arresters. On the basis of fluid dynamic and explosion-dynamic calculations and decades of experience from field tests, a line was developed that offers minimum pressure loss and maximum safety. The device uses the Shock Wave Guide Tube Effect (SWGTE) to optimally decouple the flame front and shock wave. The result is an in-line detonation flame arrester without a classic shock absorber, and the use of flame-extinguishing elements is minimised.

Model: DA-CG
Features:
• Offers protection against deflagrations, stable and unstable detonations
• Less number of FLAMEFILTER from the use of the effective shock absorber
• The modular design enables each individual FLAMEFILTER to be exchanged
• Different series allow scalable pressure loss across the surface of the FLAMEFILTER
• Minimum pressure loss and associated low operating and life-cycle costs
• Cost efficient spare parts
• Service-friendly design
• Also available for large nominal sizes
• Expanded application range for higher operating temperatures and pressures
• Bidirectional operation as well as any direction of flow and installation position
• Possible installation of temperature sensors

The PROTEGO DA-CG series of detonation arresters was developed especially for the North American market and optimised to meet the demands of the US Coast Guard. The devices are symmetrical and offer bidirectional flame arresting for deflagrations, stable and unstable detonations. The speed of incoming detonations is greatly reduced by the effective shock absorber. This improves the flame extinction in the narrow gaps of the original FLAMEFILTER.

Model: DR/EU
Features:
• Minimum number of FLAMEFILTER due to the effective shock absorber
• Quick removal and installation of the complete PROTEGO flame arrester unit and of the FLAMEFILTER in the cage
• The modular design enables each individual FLAMEFILTER to be replaced
• Cost efficient spare parts
• Provides protection from deflagration as well as from stable and unstable detonation
• The right angle design saves pipe elbows
• Minimum pressure loss and hence low operating and lifecycle costs
• Extended application range for higher operating temperatures and pressures

The PROTEGO DR/EU series of in-line detonation flame arresters represents a further development of PROTEGO flame arresters DR/ES used successfully for decades in industry. The device protects against deflagrations, stable and unstable detonations. The classic right angle design offers considerable cost and maintenance advantages in comparison to a straight through design.
Once a detonation enters the flame arrester, energy is absorbed from the detonation shock wave by the integrated shock absorber before the flame is extinguished in the narrow gaps of the original FLAMEFILTER.