HITROL Co., Ltd.

Paju maker of level switches, level transmitters and flow elements since 1980

LISTEDMANUFACTURER Paju, Gyeonggi-do, South Korea

About

HITROL is a Paju-based manufacturer of level and flow instruments with over 40 years of history, doing its own R&D and production. Its instruments are supplied to Korean power, gas and water utilities and major plants, and the company exports to markets including the USA and Germany. The range centres on float, displacer, capacitance, RF and vibrating level switches, alongside level transmitters, gauges and differential-pressure flow elements.

Products

Float & Displacer Level Switches (Liquids)
Image: © HITROL Co., Ltd.

Float & Displacer Level Switches (Liquids)

HITROL's liquid level switches give an on/off contact when a float or displacer moves with the liquid level. The HR-30 uses a magnet float on a guide pipe with reed switches, the HM-12 is a side-mount type with fully separated float and switch, and the HM-90 and HM-95 are designed for high-temperature, high-pressure vessels such as boiler drums.

Key features

  • Float and displacer operating principles
  • PVC and PTFE sensor options for corrosive and acidic liquids (HR-30)
  • Fully separated float and switch with no leakage path (HM-12)
  • Suitable for high temperature and pressure (HM-90, HM-95)
  • SPDT or DPDT contact output (HM-95)
  • Weatherproof and Ex-proof housings

Applications

  • Storage tank high/low alarms
  • Boiler drums and pressure vessels
  • Petrochemical and power plants
  • Chemical and acid tanks
  • Top- and side-mount float and displacer switches; reed, micro-switch or SPDT/DPDT outputs; weatherproof and Ex-proof versions
36 models
ModelSeriesOperating principleTypical mediumEx-proof version
HR-30SHR-30 SeriesFloat (reed switch + magnet)Liquids incl. corrosive/acidic-
HR-30SHHR-30 SeriesFloat (reed switch + magnet)Liquids incl. corrosive/acidic-
HR-30S-ExHR-30 SeriesFloat (reed switch + magnet)Liquids incl. corrosive/acidicYes
HR-30SH-ExHR-30 SeriesFloat (reed switch + magnet)Liquids incl. corrosive/acidicYes
HR-30CHR-30 SeriesFloat (reed switch + magnet)Liquids incl. corrosive/acidic-
HR-30CHHR-30 SeriesFloat (reed switch + magnet)Liquids incl. corrosive/acidic-
HR-30C-ExHR-30 SeriesFloat (reed switch + magnet)Liquids incl. corrosive/acidicYes
HR-30CH-ExHR-30 SeriesFloat (reed switch + magnet)Liquids incl. corrosive/acidicYes
HR-30VHR-30 SeriesFloat (reed switch + magnet)Liquids incl. corrosive/acidic-
HR-30V-ExHR-30 SeriesFloat (reed switch + magnet)Liquids incl. corrosive/acidicYes
HR-30THR-30 SeriesFloat (reed switch + magnet)Liquids incl. corrosive/acidic-
HR-30THHR-30 SeriesFloat (reed switch + magnet)Liquids incl. corrosive/acidic-
HR-30T-ExHR-30 SeriesFloat (reed switch + magnet)Liquids incl. corrosive/acidicYes
HR-30TH-ExHR-30 SeriesFloat (reed switch + magnet)Liquids incl. corrosive/acidicYes
HM-90HM-90(30) SeriesDisplacer + spring (top mount)Liquids, high temp./pressure-
HM-90-ExHM-90(30) SeriesDisplacer + spring (top mount)Liquids, high temp./pressureYes
HM-90HHM-90(30) SeriesDisplacer + spring (top mount)Liquids, high temp./pressure-
HM-90H-ExHM-90(30) SeriesDisplacer + spring (top mount)Liquids, high temp./pressureYes
HM-30HM-90(30) SeriesDisplacer + spring (top mount)Liquids, high temp./pressure-
HM-95HM-95 SeriesFloat + core switching, SPDT/DPDTBoiler drums, petrochemical, power plant-
HM-95-ExHM-95 SeriesFloat + core switching, SPDT/DPDTBoiler drums, petrochemical, power plantYes
HM-95HHM-95 SeriesFloat + core switching, SPDT/DPDTBoiler drums, petrochemical, power plant-
HM-95H-ExHM-95 SeriesFloat + core switching, SPDT/DPDTBoiler drums, petrochemical, power plantYes
HM-95VHM-95 SeriesFloat + core switching, SPDT/DPDTBoiler drums, petrochemical, power plant-
HM-95V-ExHM-95 SeriesFloat + core switching, SPDT/DPDTBoiler drums, petrochemical, power plantYes
HM-95VHHM-95 SeriesFloat + core switching, SPDT/DPDTBoiler drums, petrochemical, power plant-
HM-95VH-ExHM-95 SeriesFloat + core switching, SPDT/DPDTBoiler drums, petrochemical, power plantYes
HM-10HM-12(10) SeriesSide-mount float, magnetic repulsion + micro switchLiquids incl. corrosive, high temp.-
HM-12SHM-12(10) SeriesSide-mount float, magnetic repulsion + micro switchLiquids incl. corrosive, high temp.-
HM-12HHM-12(10) SeriesSide-mount float, magnetic repulsion + micro switchLiquids incl. corrosive, high temp.-
HM-12H-ExHM-12(10) SeriesSide-mount float, magnetic repulsion + micro switchLiquids incl. corrosive, high temp.Yes
HM-12DHM-12(10) SeriesSide-mount float, magnetic repulsion + micro switchLiquids incl. corrosive, high temp.-
HM-12H-SPHM-12(10) SeriesSide-mount float, magnetic repulsion + micro switchLiquids incl. corrosive, high temp.-
HM-12H-SP-ExHM-12(10) SeriesSide-mount float, magnetic repulsion + micro switchLiquids incl. corrosive, high temp.Yes
HM-12H-LHM-12(10) SeriesSide-mount float, magnetic repulsion + micro switchLiquids incl. corrosive, high temp.-
HM-12H-L-ExHM-12(10) SeriesSide-mount float, magnetic repulsion + micro switchLiquids incl. corrosive, high temp.Yes