


Maintaining safe pressure balance inside fuel tanks is essential for both operational safety and equipment longevity. That’s why DESEINOR offers a pressure vacuum vent designed to prevent dangerous p






Maintaining safe pressure balance inside fuel tanks is essential for both operational safety and equipment longevity. That’s why DESEINOR offers a pressure vacuum vent designed to prevent dangerous pressure buildup or vacuum conditions during fuel loading, unloading, and transit movement.
Engineered to stop fuel spillage in the event of a tanker rollover and with ADR-compliant performance, this vent simplifies maintenance by reducing internal components by 45% making maintenance faster and easier compared to conventional models. A single 1.5"/12 hex nut mounted at the base of the manhole lift valve allows it to endure extreme shock, vibration, and impact conditions. In the event of a tanker rollover or other accident, the valve automatically seals in reverse to prevent fuel leakage. This has consistently demonstrated its reliability in real-world operations, helping to safeguard lives, prevent accidents, and avoid costly fuel spills that could result environmental hazards.
Nominal diameter: 1.2''/1.5''/2''
Set pressure: Positive pressure: 6 to 12kPa; Negative pressure: -2 to -4kPa
Seal material: Fluorine rubber
Body material: Aluminum alloy
Installation: Thread/flange
Temperature range: -40℃ to +70℃