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FW Murphy PXT Pressure Transmitter

The PXT-K Series pressure transmitters are state-of-the-art instruments providing 4-20 mA output.

Each Piezoresistive Pressure Transmitter contains a transducer comprised of a piezoresistive silicon chip mounted on a glass-metal feed-through header welded into a stainless steel housing and filled with silicone oil. The very thin laser-welded stainless steel isolation-diaphragm completes the front side. Media pressure is transferred from the stainless steel isolation-diaphragm via the oil inside the cell to the silicon measuring chip. This construction, combined with the advanced internal signal conditioning circuitry, results in a rugged instrument with extremely small temperature error and class-leading EMI/RFI resistance.

The enclosure and all wetted parts are made of 316L stainless steel. 

PXT-K Series Pressure Transmitters can be used in applications such as compressors, engines, process control, liquid level and pumps.

FW Murphy PXT Pressure Transmitter


Process Connection:
1/4"-18 NPT female with 7/8” or 1-3/16" Hex nut
Electrical Connection:
PXT-K: 1/2” NPT male conduit connection with 60” long cable, vented
M12 connector
NEMA 4/IP65 or better
316L stainless steel


  • 4-20 mA Output Signal
  • Piezoresistive Pressure Transmitter
  • Corrosion Resistant Construction
  • High Stablity