Not every component fails the same way, and not every test needs to look for the same thing. Neometrix’s High Pressure Leak Testing Machine is a fully automated pneumatic test system built to cover that range \u2014 from a quick static pressure-decay pass to a multi-stage stepwise ramp simulating years of cyclic loading \u2014 across components from 1.2 to 20 liters in volume, at pressures up to 250 bar.<\/p>\n
Test pressure comes from an air-driven, Haskel-equivalent gas booster feeding a 44:1 dome-loaded regulator capable of 5000 psi output, backed by 6-liter receiver tanks at both 350 bar (high pressure) and 16 bar (low pressure). That amplification ratio is what lets a modest compressed-air supply \u2014 6 to 8 bar filtered dry air \u2014 generate genuinely high test pressures on demand, rather than requiring a dedicated high-pressure compressor plant.<\/p>\n
Static pressure decay fills the device under test to setpoint and watches for drop beyond a defined threshold \u2014 the standard pass\/fail leak check. Pressure vs. time profiling adds real-time graphical plotting for endurance and burst-limit evaluation. Direct outlet pressure mode gives real-time control straight to the outlet port for calibration or single-point validation. Stepwise pressure ramp applies multi-stage increases, each held for a set duration, to simulate cyclic loading on parts prone to pressure-dependent deformation.<\/p>\n
A spring-loaded relief valve set between 275 and 344 bar, a pilot pressure switch at 300 bar, Ham-Let pneumatically actuated ball valves, and an interlocked emergency-vent path all sit between the booster and the DUT \u2014 fail-safe protection that operates independently of the PLC logic driving the test sequence itself.<\/p>\n
WIKA 0\u2013400 bar SS316L glycerine-filled gauges sit alongside 0.25% full-scale digital transmitters (4\u201320 mA, SS316 wetted parts), giving both an analog reference and a precise digital reading on every test \u2014 because a leak test is only as credible as the pressure measurement it’s built on.<\/p>\n