PROTEGO® pressure/vacuum relief valves are used as in-breathing and out-breathing valves, pressure relief valves, conservation valves, and for simple control and venting of tanks and equipment when an unallowable vacuum or pressure is exceeded. PROTEGO® valves are available as pressure relief valves, vacuum relief valves, or as combined pressure/vacuum relief valves.

ZETOP Technology (Zero Emission at Tank Operating Pressure)

Zero Emissions
PROTEGO® Valves help to reach Net Zero for a Sustainable Future
Due to the highly developed manufacturing technology of PROTEGO® valves the tank pressure is maintained up to set pressure 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.

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

10% full-lift technology results in product savings (possible reduction of product losses greater than 30%).

The graphic shows calculations based on the VDI 3479 guideline demonstrating the vapor saving potential comparing a 100%, 40% and 10% PROTEGO® full lift type technology.

The PROTEGO® 10% Technology saves emissions and costs.

Extreme Tightness
Lowest possible product losses and reduced environmental pollution - help to reach Net Zero for sustainable future