Process pressure measurement system with improved venting
First Claim
1. A process fluid pressure measurement system comprising:
- a process fluid pressure transmitter; and
a coplanar manifold coupled to the process fluid pressure transmitter, the coplanar manifold including;
a first passageway coupleable to a source of process fluid,a vent passageway connected to the first passageway and terminating in a vent hole, anda port configured to receive a valve stem in at least two positions, a first orientation blocking fluidic communication between the first passageway and the vent passageway, and a second position allowing fluidic communication therebetween.
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Accused Products
Abstract
A process fluid pressure measurement system includes a process fluid pressure transmitter coupled to a coplanar manifold. The coplanar manifold includes a first bore coupleable to a source of process fluid, and a vent passageway connected to the first bore and terminating in a vent hole. The coplanar manifold includes at least one port configured to receive a valve stem. Directly engaging the valve stem with the coplanar manifold selectively vents the coplanar manifold. Aspects of the present invention also include a coplanar manifold for coupling fluid to a process fluid pressure transmitter, and a method of venting such a coplanar manifold.
14 Citations
20 Claims
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1. A process fluid pressure measurement system comprising:
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a process fluid pressure transmitter; and a coplanar manifold coupled to the process fluid pressure transmitter, the coplanar manifold including; a first passageway coupleable to a source of process fluid, a vent passageway connected to the first passageway and terminating in a vent hole, and a port configured to receive a valve stem in at least two positions, a first orientation blocking fluidic communication between the first passageway and the vent passageway, and a second position allowing fluidic communication therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A coplanar manifold configured to couple a process fluid to a process fluid pressure transmitter, the manifold comprising:
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a first passageway coupleable to a source of process fluid; a vent passageway connected with the first passageway and terminating in a vent hole; a port configured to receive a valve stem in at least two positions, a first orientation blocking fluidic communication between the first passageway and the vent passageway, and a second position allowing fluidic communication therebetween. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method of venting a coplanar process fluid manifold, the method comprising:
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actuating a valve stem to cause the valve stem to allow process fluid to flow into a vent passageway in the coplanar manifold; and venting process fluid out through a vent hole in the coplanar manifold. - View Dependent Claims (16)
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17. A process fluid pressure measurement system comprising:
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a process fluid pressure transmitter; and a coplanar manifold coupled to the process fluid pressure transmitter, the coplanar manifold including; a first passageway coupleable to a source of process fluid, a port configured to receive a valve stem; and a valve stem coupled to the port, the valve stem having a seal and a vent passageway, the seal being configured to bear against a corner within the first passageway and the vent passageway being in fluid communication with the first passageway when the seal does not bear against the corner. - View Dependent Claims (18)
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19. A valve stem for a process fluid pressure measurement system, the valve stem comprising:
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a seal disposed proximate a distal end of the valve stem; a vent passageway disposed within the valve stem; and an externally threaded portion configured to engage a coplanar manifold. - View Dependent Claims (20)
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Specification