PROTEGO®
Pressure and Vacuum Relief Valves with Flame Arrester

Cutaway 3D render of a red industrial valve showing internal components inside the housing, with a gray side-mounted actuator on a black background.

Reliable tank protection with controlled venting and explosion protection

Pressure and Vacuum Vacuum Vacuum is the pressure in an enclosed space that is lower than the ambient pressure. Relief Valves with integrated Flame Arrester Flame arrester Device fitted to the opening of an enclosure, or to the connecting pipe work of a system of enclosures, and whose intended function is to allow flow but prevent the transmission of a flame. Unit combine two critical safety functions into a single unit: controlled tank breathing and protection against flame transmission. This configuration is widely used in storage tank systems handling flammable vapours, where both pressure and vacuum protection and ignition risk must be addressed in a compact, engineered solution.

Please select a product from our range below

Filter products
Device
Type
Place of Installation
Explosion Group
Pressure/Vacuum
Material
Size DN
Design
Heating Jacket
Horizontal / Vertical
Combustion Process
Connection Type

Pressure Relief Valve

BE/HR-D

Explosion Group

IIA1
D / IIA

Pressure Range:

2 up to 35 mbar

Pressure Relief Valve

D-SVL-EB-IIA

Explosion Group

IIA1
D / IIA

Pressure Range:

2 up to 60 mbar

High Velocity Pressure Relief Valve

DE-S-IIC

Explosion Group

B / IIC

Pressure Range:

60 up to 350 mbar

High Velocity Pressure Relief Valve

DE/S-IIB

Explosion Group

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

Pressure Range:

100 up to 500 mbar

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

High Velocity Pressure Relief Valve

DE/S-MK VI - IIB3

Explosion Group

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

Pressure Range:

60 up to 350 mbar

Pressure Relief Valve

P/EB

Explosion Group

IIA1
D / IIA

Pressure Range:

3.5 up to 210 mbar

Pressure Relief Valve

P/EB-E

Explosion Group

IIA1
D / IIA
C / IIB1

Pressure Range:

3.5 up to 210 mbar

Pressure Relief Valve

P/EBR

Explosion Group

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

Pressure Range:

3.5 up to 210 mbar

Pressure Relief Valve

P/EBR-E-IIB1

Explosion Group

IIA1
D / IIA
C / IIB1

Pressure Range:

3.5 up to 210 mbar

Pressure Relief Valve

P/EBR-E-IIB3

Explosion Group

IIA1
D / IIA
C / IIB1

Pressure Range:

3.5 up to 210 mbar

Pressure/Vacuum Relief Valve

PV/EB

Explosion Group

IIA1
D / IIA

Pressure Range:

-3.5 up to -35 mbar

Vacuum Range:

2 up to 210 mbar

Pressure/Vacuum Relief Valve

PV/EB-E

Explosion Group

IIA1
D / IIA
C / IIB1

Pressure Range:

-3.5 up to -35 mbar

Vacuum Range:

2 up to 210 mbar

Pressure/Vacuum Relief Valve

PV/EBR

Explosion Group

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

Pressure Range:

-3.5 up to -50 mbar

Vacuum Range:

2 up to 210 mbar

Pressure/Vacuum Relief Valve

PV/EBR-E-IIB1

Explosion Group

IIA1
D / IIA
C / IIB1

Pressure Range:

2 up to 210 mbar

Vacuum Range:

-3.5 up to -50 mbar

Pressure/Vacuum Relief Valve

PV/EBR-E-IIB3

Explosion Group

IIA1
D / IIA
C / IIB3

Pressure Range:

2 up to 210 mbar

Vacuum Range:

-3.5 up to -50 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

Pressure Diaphragm Valve

UB/DF

Explosion Group

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

Pressure Range:

3.5 up to 140 mbar

Pressure/Vacuum Diaphragm Valve

UB/SF

Explosion Group

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

Pressure Range:

-3.5 up to -35 mbar

Vacuum Range:

3.5 up to 140 mbar

Pressure/Vacuum Diaphragm Valve

UB/SF-G

Explosion Group

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

Pressure Range:

3.5 up to 140 mbar

Vacuum Range:

-3.5 up to -3.5 mbar

Pressure/Vacuum Diaphragm Valve

UB/SF-IIA1

Explosion Group

IIA1

Pressure Range:

3.5 up to 150 mbar

Vacuum Range:

-3.5 up to -35 mbar

Vacuum Diaphragm Valve

UB/VF

Explosion Group

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

Pressure Range:

-3.5 up to -35 mbar

Vacuum Relief Valve

V/SV-AD-IIB3

Explosion Group

C / IIB3

Pressure Range:

-2 up to -35 mbar

Pressure/Vacuum Relief Valve

VD-SV-EB

Explosion Group

IIA1
D / IIA

Pressure Range:

-2 up to -60 mbar

Vacuum Range:

2 up to 60 mbar

Pressure/Vacuum Relief Valve

VD/SV-AD, VD/SV-ADL

Explosion Group

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

Pressure Range:

-3.5 up to 35 mbar

Vacuum Range:

-2 up to -35 mbar

Pressure/Vacuum Relief Valve

VD/SV-HR

Explosion Group

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

Pressure Range:

-2 up to -35 mbar

Vacuum Range:

3.5 up to 35 mbar

Pressure/Vacuum Relief Valve

VD/SV-HRL

Explosion Group

IIA1
D / IIA

Pressure Range:

-2 up to -35 mbar

Vacuum Range:

3.5 up to 35 mbar

Pressure/Vacuum Relief Valve

VD/TS

Explosion Group

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

Pressure Range:

-2 up to -25 mbar

Vacuum Range:

3.5 up to 50 mbar

Highlights of PROTEGO® Breather Valves

10% Technology
(set pressure close to relieving pressure)
Extreme tightness
reduced product losses
ZETOP
Zero Emission at Tank Operating Pressure
Lifecycle confidence
with maintenance-friendly designs and global service
Stable operation
during transients
Very high flow capacity
for your operations

Lorem Ipsum Zero Emissions with PROTEGO® Breather Valves

Lorem IpsumThe extreme tightness of PROTEGO® Valves guarantees Zero Emission at Tank Operating Pressure.

 

Due to the highly developed manufacturing technology of PROTEGO® valves the tank pressure Tank pressure Tank pressure is the pressure within a tank. is maintained up to set pressure Set pressure Set pressure is the gauge pressure at the device inlet at which the relief device is set to start opening under service conditions. with a tightness that is far superior to the conventional standard. According to the PROTEGO® Standard PS-001 leak rates are measured at 90% of the set pressure. This testing ensures PROTEGO® Valves exceed the most stringent leakage rate requirements of EPA, API2000 and EN ISO 28300.

 

Lorem IpsumTo meet the goal of emission reduction, PROTEGO® full lift Lift Lift is the actual travel of the valve pallet from the main valve out of the closed position. vents utilize 10% overpressure Overpressure Overpressure refers to an increase in pressure in a system or vessel above the normal operating pressure. technology. This technology provides very short opening and closing pressure ranges. The vent only requires 10% overpressure above the set pressure to reach full performance. The tank pressure is maintained up to just below the maximum permissible tank pressure.
PROTEGO® 10% full-lift technology vents are a major benefit to emission reduction and to safe process plant operation.

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

Project Manager

PetroChina

Application Examples for PROTEGO® Breather Valves

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Stockage basse-pression

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