Vapor Return Lines

Vent Lines for Storage Tanks and Loading Facilities

The safety of vapor return lines connected to storage tanks and loading facilities plays a critical role in maintaining both operational integrity and environmental compliance. These vent and vapor return systems are designed to allow the controlled movement of vapors, preventing hazardous pressure Pressure (gauge pressure) Pressure for which the value is equal to the algebraic difference between the absolute pressure and the atmospheric pressure. or vacuum Vacuum Vacuum is the pressure in an enclosed space that is lower than the ambient pressure. conditions while managing ignition and flame transmission risks.

Highlights

Zero flashback incidents
when sized, located, and maintained per application
Higher uptime & lower losses
with field proven technology optimized for application efficiency
Lifecycle confidence
with maintenance friendly designs and a global aftersales service network
Compliance made simpler
with documented test data and independent 3rd party approvals

Products for Vapor Return Lines

VD/SV-PA(L)
Pressure and Vacuum Relief Valve
vacuum range
-2 up to -60 mbar
pressure range
2 up to 60 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

Highlights

Robust Protection
Reliable flame arresting and pressure protection 
Customized Solutions
Tailored to local regulations, operating conditions, and customer requirements
Operational Integrity
Ensures safe vapor handling for storage tanks and loading facilities
Certified Safety Components
Tested for consistent safety performance and regulatory compliance

Products for Vapor Return Lines

DA-SB
In-Line Detonation Flame Arrester
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC
DR/ES-V
In-Line Detonation Flame Arrester
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
DV/ZT
Pressure and Vacuum Relief Valve, In-Line
pressure range
2 up to 60 mbar
vacuum range
-2 up to -60 mbar
DR/ES
In-Line Detonation Flame Arrester
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3

Protection of Loading Systems 

Loading operations can displace flammable vapors into gas displacement or vapor recovery lines. This creates a potential ignition source Ignition source Any source with enough energy to initiate combustion. and flame transmission risk, particularly in Road and Rail and Marine loading stations.

Highlights

Improved safety 
at burners/VCUs
Optimal product selection
consulting at early feed stage.
Compliant designs
with documented test data and manuals
Stable operation 
during upset conditions

Products for Vapor Return Lines

DA-SB
In-Line Detonation Flame Arrester
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
B / IIB
B / IIC
DR/ES-V
In-Line Detonation Flame Arrester
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3
DV/ZT
Pressure and Vacuum Relief Valve, In-Line
pressure range
2 up to 60 mbar
vacuum range
-2 up to -60 mbar
DR/ES
In-Line Detonation Flame Arrester
Explosion Group
IIA1
D / IIA
C / IIB1
C / IIB2
C / IIB3

The devices have performed as promised with low leak rates and minimal maintenance effort. We highly recommend them. 

Get in Touch

Contact our engineers for your 
individual requirements