Farris Engineering, part of Curtiss-Wright Valves Division announces the launch of its inSure Pressure Relief Valve Monitoring Device.
This innovative device obtains real-time monitoring of pressure relief events by detecting valve stem movement and provides immediate feedback through the CW inSure online app or Distributed Control System (DCS). The device can accurately measure pressure relief events and detect unstable flow in challenging applications to save costs and reduce maintenance.
The inSure monitor is offered factory installed and calibrated, or as a retrofit kit can be installed by a factory-trained technician on most Farris 2600 series spring-loaded pressure relief valves. Using a proprietary sensor array, the device accurately detects stem movement through the valve cap. Since there is no penetration of the valve’s pressure boundary, it does not require a special bellows configuration to isolate the stem cavity from the system fluid.
The device utilizes Bluetooth connectivity with the inSure app to calibrate the unit, which also provides live valve status of pressure events, percent open, time stamp, temperature, and battery voltage. The user can use this data to calculate the mass of a relief event using the company’s product loss calculator. If connected to a DCS, the company offers three communication protocols to connect to the device: a wired 4-20mA connection, wirelessHART, and wireless ISA100 options provide flexibility to the process owner.
The unit is powered by a long-lasting battery that is certified by CSA for hazardous location service. The default settings of the system extend the service life of the device. Under standard operation with the valve closed the unit will take one reading per hour. Once valve stem movement is detected, the frequency increases to one reading per second until the valve recloses or five minutes have passed. If the battery needs replaced, this can be performed by a factory-trained technician in a hazardous environment in accordance with Farris’s certification.
