A centrifugal fuel booster pump has one job that sounds simple and isn’t: keep positive fuel pressure at the inlet of downstream injection components across the entire flight envelope, from sea-level ground operation to altitude conditions where fuel tank pressure can drop below ambient. Neometrix’s ATF Fuel Pump Test Rig DTSN-82 is purpose-built to run in and qualify exactly that pump — the DTSN-82 centrifugal fuel booster used in certain military aircraft fuel injection systems — using real Aviation Turbine Fuel across the pressures, flows and speeds it will actually see in service.<\/p>\n
The rig pressurises the ATF tank using shop air and a vacuum pump, reaching inlet absolute pressures from 0.2 to 3.2 kg\/cm2 at the unit under test — the low end simulating the altitude cavitation margin a pump has to survive, the high end simulating boosted ground conditions. Delivered flow is measured across the pump’s full operating range of 500 to 150,000 LPH at drive shaft speeds up to 1000 RPM, while a circulating water cooling system holds the fuel within its permissible 20-120\u00b0C envelope throughout.<\/p>\n
Aviation fuel system components are sensitive to particulate contamination at a level most industrial pumps never have to consider. The rig maintains ATF cleanliness better than NAS 1638 Class-4 throughout the entire test cycle, protecting the DTSN-82’s precision internal clearances from contamination-induced wear during running-in — because a pump that fails prematurely in the field due to test-rig contamination is a worse outcome than a pump that simply wasn’t tested at all.<\/p>\n
All interconnect wiring is heat- and moisture-resistant, coded, and routed through dedicated cable trays per IS norms — a real consideration in an ATF vapour environment. Every individual component is leak-tested before assembly, and the complete final assembly undergoes a further leak test under full operating pressure. A hard-wired emergency shutdown, independent of the control system, and drive interlocks that won’t allow a start unless fluid conditions are confirmed round out the safety architecture.<\/p>\n