公开(公告)号：US11435258B2

公开(公告)日：2022-09-06

申请号：US17168403

申请日：2021-02-05

Applicant: Watts Regulator Co.

Inventor： Joseph M. Burke ,  Kevin Simon ,  Patrick R. Corcoran

IPC: G01M3/28 ,  F16K37/00

Abstract: A leak detection system for a building includes a pressure regulating valve (PRV) having a PRV inlet and a PRV outlet. The PRV is normally operative in a best operating range mode during flow conditions, and a PRV pressure at a lockup pressure during a no flow condition. An outlet pressure sensor is fluidly coupled to the PRV outlet to measure a PRV outlet pressure. A processor is operatively coupled to the outlet pressure sensor. A pressure monitoring process runs on the processor. The pressure monitoring process detects changes in pressure at the PRV outlet when the PRV pressure falls below the lockup pressure while remaining above a setpoint pressure to give an indicia of a building leak condition. A method to give an indicia of a building leak condition is also described.

公开(公告)号：US20210247263A1

公开(公告)日：2021-08-12

申请号：US17168403

申请日：2021-02-05

Applicant: Watts Regulator Co.

Inventor： Joseph M. Burke ,  Kevin Simon ,  Patrick R. Corcoran

IPC: G01M3/28 ,  F16K37/00

Abstract: A leak detection system for a building includes a pressure regulating valve (PRV) having a PRV inlet and a PRV outlet. The PRV is normally operative in a best operating range mode during flow conditions, and a PRV pressure at a lockup pressure during a no flow condition. An outlet pressure sensor is fluidly coupled to the PRV outlet to measure a PRV outlet pressure. A processor is operatively coupled to the outlet pressure sensor. A pressure monitoring process runs on the processor. The pressure monitoring process detects changes in pressure at the PRV outlet when the PRV pressure falls below the lockup pressure while remaining above a setpoint pressure to give an indicia of a building leak condition. A method to give an indicia of a building leak condition is also described.

公开(公告)号：US20190035252A1

公开(公告)日：2019-01-31

申请号：US16152873

申请日：2018-10-05

Applicant: Watts Regulator Co.

Inventor： Jason W. Doughty ,  Peter P. Bouchard ,  Paul J. Lake ,  Joseph M. Burke

IPC: G08B21/12 ,  E03B7/07 ,  G01M3/18 ,  G01F1/56 ,  G01M3/32 ,  G01M3/16 ,  G01F1/28 ,  G08B21/18

CPC classification number: G08B21/12 ,  E03B7/077 ,  E03B7/078 ,  G01F1/28 ,  G01F1/56 ,  G01M3/16 ,  G01M3/184 ,  G01M3/3254 ,  G08B21/182

Abstract: A leak detector assembly for use with a backflow prevention device includes a housing defining a passageway for receiving a fluid. A flap assembly couples to the housing for generating a low flow error signal indicating minimal fluid passing through the passageway and a fully actuated error signal indicating significant fluid passing through the passageway. The flap assembly includes a flap mounted in the passageway such that significant flow of the fluid moves the flap to generate the fully actuated error signal. The flap assembly also includes a sensing element on the flap to determine a presence of the fluid without movement of the flap to generate the low flow error signal based on a low flow of the fluid.