Using methanol and ethanol as marine fuels presents explosion and fire risks due to flammable vapor-air mixtures and flashback. Protection for methanol-fueled ships includes controlling tank breathing, preventing flame transmission, and managing pressure and vacuum conditions. PROTEGO® devices safeguard fuel tanks, vapor return lines, and in-line piping, meeting IMO and international standards. All devices comply with EN ISO 16852, ISO/IEC 80079-49, and ISO 15364, with marine approvals available.

Highlights

Durable designs
for harsh, salt-laden environments
Compliance 
with documented testing and independent 3rd party type approvals
Safer operation
through flashback prevention and optimal tank breathing
Comprehensive protection
backed by application-specific engineering

Products for Methanol Fueled Ships

DR/ES
In-Line Detonation Flame Arrester
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
VN-A-PCPF
Pressure/Vacuum Relief Valve,
vacuum range
2.2 up to 7 mbar
pressure range
20 up to 1034 mbar
DA-SB
In-Line Detonation Flame Arrester
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC
SV/E
Vacuum Relief Valve
vacuum range
-2 up to -60 mbar
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC

Application Example 
Scheme B

  • Protection of the fuel tank with a redundant in-line combination of pilot-operated  Pressure Vacuum Relief Valve and a high-velocity Pressure Relief Valve  in combination with a Vacuum Relief Valve at the vent mast
  • PROTEGO® Valves are type approved as per EN ISO 16852 and conform to ISO/IEC 80079-49 respectively and ISO 15364
  • Type approvals as per classification authority upon request

Highlights

Durable designs
for harsh, salt-laden environments
Compliance 
with documented testing and independent 3rd party type approvals
Safer operation
through flashback prevention and optimal tank breathing
Comprehensive protection
backed by application-specific engineering

Products for Methanol Fueled Ships

DE/S-IIB3
High Velocity Pressure Relief Valve
pressure range
100 up to 500 mbar
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
VN-A-PCPF
Pressure/Vacuum Relief Valve,
vacuum range
2.2 up to 7 mbar
pressure range
20 up to 1034 mbar
DA-SB
In-Line Detonation Flame Arrester
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC
SV/E
Vacuum Relief Valve
vacuum range
-2 up to -60 mbar
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC

Application Example 
Scheme C

  • PROTEGO® Flame Arresters are type approved as per EN ISO 16852 and conform to ISO/IEC 80079-49 respectively to prevent against the impact of atmospheric deflagration and endurance burning 
  • PROTEGO® Flame Arresters are type approved for endurance burning with alcohols as required by the operating conditions
  • Type approvals as per classification authority upon request
Methanol-fuelled ship with PROTEGO® safety devices installed for protection and efficient operation.

Products shown in this application

BE/HR-E-IIB3
Deflagration Flame Arrester, endurance burning proof, End-of-Line
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
DV/ZT-F
Pressure and Vacuum Relief Valve, In-Line
vacuum range
-3.5 up to -50 mbar
pressure range
60 up to 500 mbar
DA-SB
In-Line Detonation Flame Arrester
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC
DR/ES
In-Line Detonation Flame Arrester
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3

Application Example 
Scheme D

  • PROTEGO® Flame Arresters are type approved as per EN ISO 16852 and conform to ISO/IEC 80079-49 respectively for explosion group IIA for methanol and IIB1 or higher for ethanol
  • PROTEGO® Flame Arresters are type approved and tested for elevated pressures and temperatures as required by the operating conditions
  • Type approvals as per classification authority upon request
Methanol-fuelled ship with PROTEGO® safety devices installed for protection and efficient operation.

Products shown in this application

BE/HR-E-IIB3
Deflagration Flame Arrester, endurance burning proof, End-of-Line
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
DV/ZT-F
Pressure and Vacuum Relief Valve, In-Line
vacuum range
-3.5 up to -50 mbar
pressure range
60 up to 500 mbar
DA-SB
In-Line Detonation Flame Arrester
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC
DR/ES
In-Line Detonation Flame Arrester
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3

Application Example 
Scheme E

  • PROTEGO® Valves are type approved as per EN ISO 16852 and conform to ISO/IEC 80079-49 respectively and ISO 15364​
  • Type approvals as per classification authority upon request
Methanol-fuelled ship with PROTEGO® safety devices installed for protection and efficient operation.

Products shown in this application

DE/S-IIB3
High Velocity Pressure Relief Valve
pressure range
100 up to 500 mbar
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
SV/E
Vacuum Relief Valve
vacuum range
-2 up to -60 mbar
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC
DA-SB
In-Line Detonation Flame Arrester
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC
DR/ES
In-Line Detonation Flame Arrester
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3

Highlights

Durable designs
for harsh, salt-laden environments
Compliance 
with documented testing and independent 3rd party type approvals
Safer operation
through flashback prevention and optimal tank breathing
Comprehensive protection
backed by application-specific engineering

The PROTEGO® devices are working to our utmost satisfaction. PROTEGO® - who, with their technical expertise, supported in reducing the overall life cycle cost of the Detonation Flame Arresters installed at our plant by installing flame arresters, which are easy to clean and maintenance-friendly. 

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