HIRO Thermo-manometers are used for installation in the flow and return brine circuits on a manifold and designed for the temperature and pressure ranges of geothermal energy systems with a self-closing built-in valve.

The pressure gauge is sealed with an O-ring against the shut-off valve and can be screwed loose when the system is being filled (recommended so that the measuring device is not damaged in the event of air hammer).


  • Geothermal heat recovery systems
  • Brine circuit manifolds


  • Combined pressure and temperature display
  • Accuracy class 1.6% of full scale
  • Measuring range 0 – 10 bar, –20 to +50 °C
  • Shut-off valve brass, self-closing immersion sleeve with ½” BSPM thread
  • Dimensions D x H Ø80 x 30 mm
  • Central rear connection
  • Material Body steel painted/chromed, parts in contact with media CU alloys