NEWTON rollover vent valve

NEWTON D6.35 DH4 vent valve
The vent valve should allow air to enter the tank to replace the volume of fuel volume exiting the tank.
It should also allow the gases to escape from the tank in the event of over-pressure (due to heat, for example).
Inlet: 7 mm tube
Diameter: 22 mm
Height: 62.5 mm
Weight: 28 g
Air flow rate: 0.66 L/s