A device for indicating the status of a valve includes a position indicator, wherein the position indicator includes a monitoring element, and a communication element. A method for indicating the status of at least one valve includes monitoring positions of a device enclosed by a first valve with a
A device for indicating the status of a valve includes a position indicator, wherein the position indicator includes a monitoring element, and a communication element. A method for indicating the status of at least one valve includes monitoring positions of a device enclosed by a first valve with a position indicator and communicating the positions of the device enclosed by the first valve with a communications element.
대표청구항▼
1. A non-rising stem gate valve assembly, comprising: a valve housing configured to permit flow of fluid through the valve housing;a gate disposed within the valve housing;a valve stem defined by an elongated rod having a first external threading and a second external threading distal from the first
1. A non-rising stem gate valve assembly, comprising: a valve housing configured to permit flow of fluid through the valve housing;a gate disposed within the valve housing;a valve stem defined by an elongated rod having a first external threading and a second external threading distal from the first external threading, the first external threading configured to engage the gate and to cause translational motion of the gate upon rotation of the valve stem;a position indicator, wherein the position indicator includes a monitoring element and a position couple engaging the valve, the position couple including a collar defining a bore with internal threading threadedly engaging the second external threading of the valve stem; anda communication element. 2. The assembly of claim 1, wherein the position indicator includes a magnet placed within the position couple. 3. The assembly of claim 1, wherein the position indicator includes at least one proximity sensor. 4. The assembly of claim 3, wherein the at least one proximity sensor is a first Hall sensor and a second Hall sensor, the first Hall sensor positionable relative to an open position of the valve and the second Hall sensor positionable relative to a closed position of the valve. 5. The assembly of claim 3, wherein the at least one proximity sensor is connected to a circuit board. 6. The assembly of claim 1, wherein the position indicator is mountable between a stuffing box of the valve and an op nut of the valve, the op nut rotationally fixed to the valve stem. 7. The assembly of claim 1, wherein the communication element includes a communication device. 8. The assembly of claim 7, wherein the communication device includes a visual readout. 9. The assembly of claim 7, wherein the communication device is connected to the position indicator by a wire conductor. 10. The assembly of claim 7, wherein the communication device includes an antenna. 11. A method for indicating the status of at least one non-rising stem gate valve, comprising: causing translational motion of a gate within a valve housing by rotating a valve stem defined by an elongated rod having a first external threading engaging the gate;monitoring positions of the gate along the valve with a position indicator including a position couple engageable with the valve, the position couple including a collar having a bore with internal threading threadedly engaging a second external threading of the valve stem disposed distal from the first external threading; andcommunicating the positions of the gate enclosed by the valve with a communications element. 12. The method of claim 11, wherein monitoring positions of a device enclosed by the first valve with a position indicator includes using at least one proximity sensor to determine the position of a magnet of the position indicator. 13. The method of claim 11, further comprising: monitoring positions of a second device enclosed by a second valve with a second position indicator;communicating the positions of the second device enclosed by the second valve with the communications element. 14. The method of claim 11, further comprising communicating the position of the device enclosed by the first valve with a remotely located communicator. 15. A non-rising stem gate valve assembly, comprising: a valve housing configured to permit flow of fluid through the valve housing;a gate disposed within the valve housing;a valve stem defined by an axially-fixed elongated rod having a first external threading and a second external threading distal from the first external threading, the first external threading configured to engage the gate and to cause translational motion of the gate upon rotation of the valve stem;a position indicator, wherein the position indicator includes a monitoring element and a position couple engaging the valve, the position couple including a collar defining a bore with internal threading threadedly engaging the second external threading of the valve stem, the collar being rotationally fixed and configured to translate along the second external threading of the valve stem upon rotation of the valve stem; anda communication element. 16. The assembly of claim 15, wherein the position indicator includes at least one proximity sensor. 17. The assembly of claim 16, wherein the at least one proximity sensor is a first Hall sensor and a second Hall sensor, the first Hall sensor positionable relative to an open position of the valve and the second Hall sensor positionable relative to a closed position of the valve. 18. The assembly of claim 16, wherein the at least one proximity sensor is connected to a circuit board. 19. The assembly of claim 15, wherein the position indicator is mountable between a stuffing box of the valve and an op nut of the valve, the op nut being rotationally fixed to the valve stem. 20. The assembly of claim 19, wherein the stuffing box further defines a bore, an external portion of the valve stem distal from the gate extending outwards through the bore of the stuffing box, the second external threading of the valve stem disposed on the external portion of the valve stem.
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