Abstract: The invention relates to a wireless valve actuation device for a quarter turn valve actuator which comprises: (a) a pressurized air input line; (b) a short range wireless receiver for receiving an actuation message from a control center, said message being conveyed to the device via a gateway; (c) a pressurized air activated actuator which is connected to an air output of a first solenoid and to a stem of the quarter turn valve, said actuator is designed to cause variation in an angular orientation of the stem based on an air pressure as received from said output of the first solenoid; (d) a first solenoid for opening a channel between said air input line and said output line to the actuator, upon receipt of an actuation signal; and (e) a controller for receiving said actuation message, and for activating said first solenoid by conveying to it said actuation signal.

Abstract: The invention relates to a system for determining a potential future failure of an actuated valve controlling fluid flow in a line by causing an angular change between two states of a stem of said valve, which comprises: (a) a sensor for, upon receipt a control command at said actuator, continuously sensing the angular position of the stem, and conveying to a monitoring unit a respective angular variation signal; and (b) a monitoring unit which comprises: (b1) a sampling unit for receiving said angular variation signal, and producing a transition vector which comprises periodical samples from said signal; (b2) a local storage for storing nominal transitional values for said actuator-valve pair; and (b3) a local comparator unit for comparing at least a portion of said transitional vector with the corresponding stored nominal transitional values, and if a difference above one or more predefined threshold values is determined, issuing an alert for a potential failure of said actuator.

Abstract: The invention relates to a network system for monitoring valves in a facility, which comprises: (a) a plurality of valve monitoring devices—VMDs, each monitoring device is affixed to a valve, and comprises: (a.1) a sensor for sensing the status of the valve; (a.2) short range wireless communication unit for transmitting the status as sensed by said sensor, and for transmitting the status as sensed, together with an identification of said device, to one or more Valve Device Readers—VDRs located within said short range; (a.3) mechanism for affixing the device to the monitored valve in a manner which does not disturb the normal operation of the valve; and (a.4) one or more VDRs for receiving the transmission of the valve status and VMD identification from said VMDs, and for forwarding the same to a server by Ethernet communication.

Abstract: The invention relates to a network system for monitoring valves in a facility, which comprises: (a) a plurality of valve monitoring devices—VMDs, each monitoring device is affixed to a valve, and comprises: (a.1) a sensor for sensing the status of the valve; (a.2) short range wireless communication unit for transmitting the status as sensed by said sensor, and for transmitting the status as sensed, together with an identification of said device, to one or more Valve Device Readers—VDRs located within said short range; (a.3) mechanism for affixing the device to the monitored valve in a manner which does not disturb the normal operation of the valve; and (a.4) one or more VDRs for receiving the transmission of the valve status and MD identification from said VMDs, and for forwarding the same to a server by Ethernet communication.