公开(公告)号：US20230375385A1

公开(公告)日：2023-11-23

申请号：US18321321

申请日：2023-05-22

Applicant: Watts Regulator Co.

Inventor： Joseph Michael BURKE ,  Yousef S. ALMESAD

IPC: G01F1/56 ,  F16K17/00 ,  G01F15/00 ,  G01M3/26 ,  F24H15/395 ,  F24D19/10 ,  F24H9/20 ,  F24H15/20 ,  F24H15/31 ,  F24H15/12 ,  F24H15/238 ,  F24H15/212 ,  F24H15/242 ,  F24H15/45

CPC classification number: G01F1/56 ,  F16K17/003 ,  G01F15/005 ,  G01M3/26 ,  F24H15/395 ,  F24D19/1006 ,  F24H9/2007 ,  F24H15/20 ,  F24H15/31 ,  F24H15/12 ,  F24H15/238 ,  F24H15/212 ,  F24H15/242 ,  F24H15/45

Abstract: Please replace the originally filed abstract with the substitute abstract provided below. A temperature and pressure relief valve apparatus including a body having a first conduit connected to a water heater and a second conduit connected to a discharge pipe. A valve member, positioned between the first and second conduits, is normally biased closed to prevent flow between the conduits. The valve member is configured such that when a temperature or pressure within the water heater exceeds a predetermined level, the valve member opens to relieve pressure and, in turn, water is released through the second conduit. A sensor is disposed about the second conduit and coupled to a controller. The controller measures a capacitance value of the second conduit, detects a change in the capacitance value indicating a presence of water in the second conduit, and asserts an alarm condition upon detection of the change in the second conduit capacitance value.