Nozzle tester, Mechnical hand pump is to adjust and calibrate injector nozzle open pressure, leakage, spray pattern. Nozzle Tester, Mechnical Hand PumpS60H Nozzle tester (testers for test nozzle and holder assemblies and engine nozzle and holder assemblies, informally referred to as nozzle testers) can be used to perform the following tests on injection nozzles of sizes P, R, S and T with the ...