PROCESS TESTING LEAK-PROOFNESS OF ARTICLES Russian patent published in 1997 - IPC

FIELD: test of connections of pipe-lines operating under conditions of passage of high-temperature gas. SUBSTANCE: proposed process consists in feed of gas and helium high-pressure mixture into article heated to temperature at which article functions, in continuous evacuation of mixture from closed space with the aid of two pumps - pump of leak detector and mechanical pump and in determination of leak by formula. Technical result of invention lies in simplification of technological circuit of testing bed thanks to absence of leak detector in main line of additional mechanical pump continuously evacuating intensive gas liberation. Leak of connection is defined more exactly by formula with allowance for productivity of pumps. EFFECT: enhanced authenticity of process.