Leak detection system and method for fluid delivery piping

Details Leak detection system and method for fluid delivery piping Leak detection system and method for fluid delivery piping

1977-04-28

1978-12-26

Tollberg, Stanley H.

Dispensing

Automatic control

B67D 514

Patent

active

041312163

ABSTRACT:
A system and method for detecting leaks in an underground piping network supplying liquid petroleum products pumped from an underground storage tank to an aboveground dispenser outlet. A highly sensitive flow detector situated in a parallel looped bypass arrangement is selectively operated for ascertaining existence or non-existence of a piping leak. Following a sufficient time lapse of non-dispensing for enabling temperature stabilization of the piping network to occur, the detector is actuated in a controlled sequence of go, no-go steps that culminates in ascertaining existence or non-existence of a piping leak while at the same time eliminating any false indication occasioned by detector malfunction.

REFERENCES:
patent: 3969923 (1976-07-01), Howell

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