Leak detection system
First Claim
1. A system useful for detecting a leak in a pressurized piping system having a main supply line and a plurality of branch fluid supply lines in communication with the main supply line, said system comprising:
- control logic;
one and only one user demand detector selected from the group consisting of a flow switch and a flow meter, the user demand detector capable of determining whether user demand is present in the pressurized piping system, and the user demand detector being in communication with the control logic;
one and only one single pressure decay detector in communication with the control logic; and
a shutoff valve in communication with the control logic.
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Accused Products
Abstract
A leak detection system capable of automatically detecting a leak in a pressurized piping system. A pressure decay test is utilized to test for leaks in the piping system. Disruption to users of the piping system is reduced by only performing the pressure decay test when there is no user demand on the piping system. Thus, a leakage test is performed by first determining whether there is user demand on the piping system and proceeding with a pressure decay test only if there is no user demand present. If user demand is initiated during the performance of a pressure decay test, the system detects the user demand and halts the pressure decay test until the user demand stops.
60 Citations
8 Claims
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1. A system useful for detecting a leak in a pressurized piping system having a main supply line and a plurality of branch fluid supply lines in communication with the main supply line, said system comprising:
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control logic; one and only one user demand detector selected from the group consisting of a flow switch and a flow meter, the user demand detector capable of determining whether user demand is present in the pressurized piping system, and the user demand detector being in communication with the control logic;
one and only one single pressure decay detector in communication with the control logic; and
a shutoff valve in communication with the control logic. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification