The Newton Breather & Vent Valve is a critical safety and performance component for motorsport fuel, oil and water tanks. Designed to meet the demanding conditions of racing environments, this 6.5 mm inline vent valve ensures optimal tank ventilation while reliably preventing fluid escape.
The valve features a dual-ball safety system:
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A HDPE plastic ball rises to prevent tank overfilling, especially when the filler neck is offset from the tank.
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In the event of a vehicle rollover, a stainless steel (316) ball presses against the plastic ball, instantly sealing the system and preventing fuel leakage.
Manufactured from precision-machined 6082/T6 aluminium, equipped with Viton seals and finished with a red anodised coating, the valve offers excellent durability, chemical resistance and thermal stability.
⚠️ Important installation note:
The Newton vent valve must be installed vertically (±10°) to function correctly and safely.
Ideal for:
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Motorsport & racing vehicles
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Trackday & time attack cars
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High-performance builds
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Fuel, oil and water tanks
Technical Specifications
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Fixing: Ø7.0 mm hose spigots
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Flow rate: 0.66 litre/second
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Operating temperature: -40 °C to +80 °C
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Valve orientation: Vertical ±10°
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Weight: 30 g
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Finish: Red anodised
Materials:
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Body: Aluminium alloy 6082/T6
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O-Ring: Viton A (FPM/FKM)
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Primary float ball: HDPE plastic (green)
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Secondary safety ball: Stainless steel 316
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Ball stopper: Brass
