HS23 Dry Model Bubble Unit
HS23 Dry Model Bubble Unit

HS23 Dry Bubble Unit

Other models available

KISTERS’ dry bubble unit HS23 is a standard component of a ‘constant bubble’ type gas purge system. The HS23 provides a constant flow of gas (e.g. dry nitrogen or dried air) through a small diameter conduit (river line) to an opening submerged in the water body…  Read more

Application Suitable for use with an external dry nitrogen gas cylinder or as a component in a compressor system using dried air (e.g. Model HS40AFC/HS40AFC/V HS40 Series II or HS55)
Pressure Transducer Suits WL3100 or WL3100A or compatible third-party models
Differential Regulator Standard feature on all models
Available Models SINGLE LINE, DUAL LINE or DUAL ORIFICE
Gas Supply Line Fitting ¼’’ standard, 3/16’’ or 3/8’’ fittings can be provided as accessory items.
Instrument Line Fitting ¼’’ standard, 3/16’’ or 3/8’’ fittings can be provided as accessory items.
Orifice Line Fitting 3/8’’ standard, 3/16’’ or ¼’’ fittings can be provided as accessory items.
Bubble Rate Factory set at approximately 26 bubbles per minute
Accessory Items HS23QC bubble rate tested orifice when bubble unit is fitted with SC027-68 quick connector and HS2360-02 adapter
Ferrules Available to suit fittings listed above
Dimensions 220 mm × 220 mm × 150 mm (8.66” x 8.66” x 5.91”)
Weight HS23SL: 3.5 kg (7.72 lbs); HS23DL: 4.5 kg (9.92 lbs); HS23DO: 4.5 kg (9.92 lbs)

KISTERS’ dry bubble unit HS23 is a standard component of a ‘constant bubble’ type gas purge system. The HS23 provides a constant flow of gas (e.g. dry nitrogen or dried air) through a small diameter conduit (river line) to an opening submerged in the water body (orifice).

Changes in water level are detected by a dry pressure sensor connected to the HS23 by measuring the pressure head of gas bubbling from the orifice.

The HS23 is a reliable and maintenance free method for accurate sensing of water level. It provides a constant differential pressure (3-5 psi) above the pressure head at the orifice. This constant differential pressure maintains a constant bubble rate through the gas tube throughout all water level regimes.

The system incorporates a regulator valve for setting the bubble rate. This eliminates the need of sight glass and oil reservoir. The unit is pre-calibrated at the factory.

  • Robust construction
  • Pre-calibrated regulator valve
  • No oil (dry operation)
  • Easily serviced and maintained
  • Available in single line (HS23SL), dual line (HS23DL) or dual orifice (HS23DO) models
  • Suitable for all dry pressure transducers such as KISTERS’ WL3100 and WL3100A  and compatible third-party products

The HS23 is suitable for these applications:

  • Surface Water
  • Ground Water
  • Reservoirs
  • Dams
  • Coastal
  • Canals