Methanol Fueled Ships

Explosion Protection according to IMO MSC.1/Circ.1621

Using methanol and ethanol as marine fuels presents explosion Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. and fire risks due to flammable vapor-air mixtures and flashback Flashback Phenomenon occurring in a flammable mixture of air and gas when the local velocity of the combustible mixture becomes less than the flame velocity, causing the flame to travel back to the point of mixture. . Protection for methanol-fueled ships includes controlling tank breathing, preventing flame transmission, and managing pressure and vacuum Vacuum Vacuum is the pressure in an enclosed space that is lower than the ambient pressure. 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 approvals
Safer operation
through flashback prevention and optimal tank breathing
Comprehensive protection
backed by application-specific engineering

Products for Methanol Fueled Ships

In-Line Detonation Flame Arrester

DR/ES

Explosion Group

IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3

Pressure/Vacuum Relief Valve,

VN-A-PCPF

Pressure Range:

20 up to 1034 mbar

Vacuum Range:

2.2 up to 7 mbar

In-Line Detonation Flame Arrester

DA-SB

Explosion Group

IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC

Vacuum Relief Valve

SV/E

Explosion Group

IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC

Pressure Range:

-2 up to -60 mbar

Application Example 
Scheme B

Highlights

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

Products for Methanol Fueled Ships

High Velocity Pressure Relief Valve

DE/S-IIB3

Explosion Group

IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3

Pressure Range:

100 up to 500 mbar

Pressure/Vacuum Relief Valve,

VN-A-PCPF

Pressure Range:

20 up to 1034 mbar

Vacuum Range:

2.2 up to 7 mbar

In-Line Detonation Flame Arrester

DA-SB

Explosion Group

IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC

Vacuum Relief Valve

SV/E

Explosion Group

IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC

Pressure Range:

-2 up to -60 mbar

Application Example 
Scheme C

Methanol-fuelled ship with PROTEGO® safety devices installed for protection and efficient operation.

Products shown in this application

Deflagration Flame Arrester, endurance burning proof, End-of-Line

BE/HR-E-IIB3

Explosion Group

IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3

Pressure and Vacuum Relief Valve, In-Line

DV/ZT-F

Pressure Range:

60 up to 500 mbar

Vacuum Range:

-3.5 up to -50 mbar

In-Line Detonation Flame Arrester

DA-SB

Explosion Group

IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC

In-Line Detonation Flame Arrester

DR/ES

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

Deflagration Flame Arrester, endurance burning proof, End-of-Line

BE/HR-E-IIB3

Explosion Group

IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3

Pressure and Vacuum Relief Valve, In-Line

DV/ZT-F

Pressure Range:

60 up to 500 mbar

Vacuum Range:

-3.5 up to -50 mbar

In-Line Detonation Flame Arrester

DA-SB

Explosion Group

IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC

In-Line Detonation Flame Arrester

DR/ES

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

High Velocity Pressure Relief Valve

DE/S-IIB3

Explosion Group

IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3

Pressure Range:

100 up to 500 mbar

Vacuum Relief Valve

SV/E

Explosion Group

IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC

Pressure Range:

-2 up to -60 mbar

In-Line Detonation Flame Arrester

DA-SB

Explosion Group

IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC

In-Line Detonation Flame Arrester

DR/ES

Explosion Group

IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3

Highlights

Durable designs
for harsh, salt-laden environments
Compliance 
with documented testing and 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. 

Maintenance and Reliability Engineer

DOW UCAR Emulsion Systems Jebel Ali FZE Plant