Onyx Valve Company Pressure Sensors


Onyx manufactures a complete line of pressure sensor rings to allow for the pressure measurement of slurries and corrosive fluids. Onyx’s vacuum filling process provides superior accuracy compared to diaphragm seals. A patented module seal allows instruments to be replaced or calibrated with minimum downtime and without the need for special tools.

  • Modular seals for in-line maintenance
  • Up to 3 instruments per ring
  • Combinations to suit the application
  • Guaranteed to never clog or plug
  • Flanged, screw-on, tri-clover connections
  • Available with gauges, pressure switches, and transmitters
  • 1″ to 42″