Bi-planar differential pressure transmitter with orthogonal process connections

A pressure transmitter apparatus comprising:

• a unitary body having, in a first orientation, first and second pressure openings disposed at substantially the same vertical location along a first horizontal axis on opposed vertical faces of said body,
• a transducer mounting coupled to said body and located, in said first orientation, vertically above said pressure openings,
• a first and a second pressure passage vertically extending at least partly within said body for communicating respectively between said first and second pressure openings and said transducer mounting,
• diaphragm forming first and second process diaphragms respectively closing said first and second pressure openings,
• first and second flanges removably and replaceably secured, respectively, to said opposed vertical faces of said body, and overlying said diaphragm, said first and second flanges apertured to form respective first and second pressure chambers adjacent said diaphragm, said first and second flanges forming respective first and second pressure ports extending vertically within said first and second flanges to intersect with said first and second pressure chambers for coupling first and second pressure inputs to said first and second process diaphragms, respectively,
• wherein each of said first and second flanges includes a selectively closed first passageway extending horizontally within said first and second flanges to intersect with said first and second pressure chambers, respectively, and being offset vertically and horizontally from said first horizontal axis, said first passageway having a flared termination at said respective first and second pressure chambers, said flared termination extending radially about said first horizontal axis such that said flared termination in said first orientation extends vertically from said first horizontal axis opposite said respective first and second pressure ports, and extends horizontally from said first horizontal axis opposite said second passageway,
• wherein each of said first and second flanges includes a selectively closed second passageway extending horizontally within said first and second flanges to intersect with said first and second pressure chambers, respectively, and being offset horizontally from said first horizontal axis opposite from said first passageway, said first and second passageways in combination with said first and second pressure ports disposed for purging gas and draining liquid when in one of said first orientation and a second orientation, rotated one-hundred eighty degrees about said first horizontal axis from said first orientation, said first and second passageways alternately disposed for purging gas and draining liquid when said transmitter apparatus is mounted in one of a third orientation rotated ninety degrees about said first horizontal axis from said first orientation and a fourth orientation rotated one-hundred eighty degrees about said first horizontal axis from said third orientation.

A pressure transmitter apparatus comprising:

• a unitary body having, in a first orientation, first and second pressure openings disposed at substantially the same vertical location along a first horizontal axis on opposed vertical faces of said body,
• a transducer mounting coupled to said body and located, in said first orientation, vertically above said pressure openings,
• a first and a second pressure passage vertically extending at least partly within said body for communicating respectively between said first and second pressure openings and said transducer mounting,
• diaphragm forming first and second process diaphragms respectively closing said first and second pressure openings,
• first and second flanges removably and replaceably secured, respectively, to said opposed vertical faces of said body, and overlying said diaphragm, said first and second flanges apertured to form respective first and second pressure chambers adjacent said diaphragm, said first and second flanges forming respective first and second pressure ports extending vertically within said first and second flanges to intersect with said first and second pressure chambers for coupling first and second pressure inputs to said first and second process diaphragms, respectively,
• wherein each of said first and second flanges includes a selectively closed first passageway extending horizontally within said first and second flanges and being offset vertically from said first horizontal axis opposite said respective first and second pressure ports to intersect with a periphery of said first and second pressure chambers, respectively, and disposed for purging gas from said pressure chambers when in said first orientation,
• wherein each of said first and second flanges includes a selectively closed second passageway extending horizontally within said first and second flanges to intersect with a periphery of said first and second pressure chambers, being offset opposite from said first passageway, said second passageway disposed for draining liquid when in said first orientation.