Other

Anderson, Greenwood & Co.

John E Hewson

Marion L Schomer

A spool type differential pressure transmitter support and valving manifold having a manifold body defining a process face and a transmitter face and having a generally cylindrical internal surface defining an open ended spool chamber and having signal inlet and outlet passages intersecting the process and transmitter faces and being in communication with the spool chamber. The manifold body also defines a vent passage which is in communication with said spool chamber. A spool member is positioned for rotation to 'run', 'zero' and 'off' positions within the spool chamber, has ends extending from the open ends of the spool chamber and has a pair of transversely oriented body passages positioned for selective registry with the signal inlet and outlet passages at the 'run' position of the spool member. Circumferential seals each preferably comprising an O-ring and a back-up ring establish sealing between the spool member and the manifold body and serve to isolate the signal passages from one another and to prevent leakage of signal pressure at the open ends of the spool chamber. A plurality of mode seal elements are carried by the outer periphery of the spool member and provide for manifold mode selection to the 'run', 'zero' and 'off' positions responsive to rotational positioning of said spool member relative to said manifold body to permit calibration of the differential pressure transmitter with the pressurized process in operation.

Differential pressure instrument support manifold having rotary mode

A pressure transmitter manifold having a block with an inlet in communication with a pair of outlets, valve means controlling communication between the inlet and said outlets, valve controlled bleed and test connections in communication with said outlets and means for supporting said manifold block in a preselected position.

Pressure transmitter manifold

A mounting support and fluid interfacing connection between process conduits of differing pressure and an instrument capable of sensing the differing pressure and providing a signal indicative of the pressure differential of the process medium contained within the conduits. The mounting support, in addition to providing structural support for the differential pressure sensing apparatus, serves to transmit pressure to the high and low pressure portions of the differential pressure sensing mechanism. The support may also include valves for controlling fluid pressure communication in the high and low range pressure transmitting passages and for establishing a balanced pressure condition between the low pressure and high pressure sides of the differential pressure sensing mechanism for the purpose of calibration.

Differential pressure transducer process mounting support and manifold

A support structure for a differential pressure transmitter and its valve manifold including an angle plate supported from a pipe, fasteners securing the valve manifold to the angle plate and fasteners securing the transmitter to the valve manifold and the method of servicing the transmitter by removing it from the valve manifold without disconnecting the support structure.

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Houston, TX, United States of America

John E Hewson