Description
Most people meet compressed air at the worst possible moment. A tyre is soft on a shoulder lane, a trailer has lost pressure before a morning run, a horn has gone silent on a machine that was designed to be heard. The little inflators sold at service stations exist for that moment and fail at it, because a plastic pump that plugs into a cigarette lighter has to build pressure from nothing, one slow minute at a time. The Pressure Vault takes the opposite approach. It carries its own 6 litre receiver tank, so pressure is already waiting when you need it.
The architecture is deliberately simple. A 12 volt DC motor drawing 23 amps drives a compressor head that fills the tank to 150 PSI, then rests. The pressure switch cuts the motor at 120 PSI and restarts it at 90 PSI, which means the system maintains a working reservoir without cycling constantly. That receiver is what separates this from an inflator: the tank absorbs demand instantly, so a tyre, a ball, a boat, or a pneumatic tool receives full airflow the second the trigger opens rather than waiting on the compressor to catch up.
Build quality follows the same logic. The housing measures 380 by 140 by 300 millimetres and weighs 5.2 kilograms, which is heavy enough to sit still in a boot or an engine bay and light enough to lift with one hand. The unit runs on DC power, so it works from a vehicle battery, a portable power station, or a workshop 12 volt rail without an inverter. It arrives complete with hose, fittings, and a safety valve, which means the first time you open the box is the first time you can use it.
A tank is not a convenience. It is stored capability, waiting quietly until the moment it is needed.
Key Features
- ✦ Integrated 6 litre (1.6 US gallon) steel receiver tank delivers airflow from the first instant, with no spool-up delay
- ✦ 150 PSI maximum working pressure with an automatic pressure switch that cuts out at 120 PSI and restarts at 90 PSI
- ✦ 12 volt DC operation at 23 amps, compatible with vehicle batteries, 12 V rails, and portable power stations without an inverter
- ✦ Universal application across vehicle tyres, bicycle tyres, sports balls, inflatable boats, and low-volume pneumatic tools
- ✦ Compact 380 x 140 x 300 mm footprint and 5.2 kg body that stays stable in a car boot or bolted into an engine bay
- ✦ Supplied as a complete kit with hose, fittings, and safety valve so no additional parts are required for first use
Technical Specifications
- Working Pressure: 150 PSI maximum, pressure switch 90 PSI on / 120 PSI off
- Tank Capacity: 6 litres (1.6 US gallons)
- Power Type: DC 12 V
- Current Draw: 23.0 A
- Product Dimensions: 380 (L) x 140 (W) x 300 (H) mm
- Net Weight: 5.2 kg
- Motor: Single cylinder DC compressor head, direct drive
- Delivery: Hose, quick fittings, and safety valve included
- Certification: CE
- Typical Applications: Vehicle and bicycle tyres, sports balls, inflatables, light pneumatic tools
Application Scenarios
The Pressure Vault earns its place in three settings. In a private vehicle it turns a roadside problem into a five minute stop, because the tank holds pressure and can top up four tyres in sequence without pause. In a workshop or light industrial bay it becomes a compact 12 volt air station for blowing down filters, seating beads, and running low-consumption air tools away from a fixed compressor line. In marine and outdoor use it handles tender boats, paddleboards, and trailer tyres at a ramp or a slipway where no mains air exists and no service station is close. Because it draws from DC rather than mains, the same unit travels between all three without modification.
Frequently Asked Questions
Q: Does the tank need to be full before I can inflate anything?
No. The receiver tank builds pressure while the motor runs, and the pressure switch keeps it between 90 and 120 PSI automatically. In practice you switch the unit on, allow the tank to charge, and then inflate from stored pressure. The tank simply means you are not waiting on the compressor head for every litre of air.
Q: Will it run from a standard car battery?
Yes. The unit draws 23 amps at 12 volts DC, which is well within the continuous capability of a normal vehicle battery and charging system. It can also run from a portable power station or a workshop 12 volt supply. For extended use, keep the engine running so the battery recovers.
Q: What can I inflate with 150 PSI and a 6 litre tank?
Vehicle tyres to full road pressure, bicycle tyres, sports balls, inflatable boats and paddleboards, and low-volume pneumatic tools such as blow guns. Because the tank stores air, short bursts of high flow are available immediately, which is where small tankless inflators struggle.
Q: How do I know when to stop inflating?
Use a separate tyre gauge and inflate in short bursts, checking between them. The internal switch only governs the tank, not the item being filled, so a gauge gives the accurate final reading. The automatic cut-out at 120 PSI protects the compressor from over-cycling while you work.
Q: Is the unit suitable for permanent installation?
It can be. The 380 x 140 x 300 mm body and 5.2 kg weight suit a fixed bracket in a van, trailer, or engine bay, and the DC input can be wired to a fused 12 volt circuit. Many owners keep it portable and move it between vehicles instead, which the complete hose and fitting kit makes straightforward.
Q: What is included in the box?
One 12 volt compressor with the 6 litre tank fitted, one air hose, a set of fittings, and a safety valve. Nothing else is required to begin inflating, though a separate tyre pressure gauge is recommended for accurate final readings.
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