The simple and compact solution for expansion directly on the plate apparatus.

WITT HSF - flanschbarer Schwimmerregler
WITT HSF - flanschbarer Schwimmerregler

In compact refrigeration systems or skids, capacity and size are two factors that are not always in harmony.

We have therefore optimized the already established high-pressure float regulator types HS 30 and HS 40 for direct mounting on plate heat exchangers. Instead of a simple inlet nozzle on top of the housing, the HS can now be ordered with a matching flange on the housing side.

Anbringung von Schwimmerreglern an Plattenapparate (links mit Flansch | rechts ohne)
Anbringung von Schwimmerreglern an Plattenapparate (links mit Flansch | rechts ohne)

The high-pressure float regulator has been developed exclusively to meet the needs of the refrigeration industry. With its self-regulating mechanical operation, it is the lowest maintenance and most efficient way to expand condensed refrigerant. In addition, WITT high pressure float regulators replace the need for a high-pressure receiver due to their housing size.

The flange sizes DN 100, DN 150 and DN 200 were chosen in order to be able to use almost all plate condensers available in industrial refrigeration with a flanged float.

The functionality of the control unit remains unaffected by the modification to the housing and can still be individually designed to meet your requirements.


  • Modular housing and control unit
  • Low maintenance
  • Mechanical and efficient

  • Durable and established
  • Receiver and expansion in one


WITT HSF - Abmessungen
WITT HSF - Abmessungen
L (~) B H (~) Ø A C D Ø E Ø F l h b1
HSF 30-100 797 290 353 114,3 52,4 94 219,1 60,3 128 184 235
HSF 30-150 807 290 359 168,3 25,4 94 219,1 60,3 128 184 300
HSF 40-150 951 400 483 168,3 77,8 147 323,9 88,9 158 255 300
HSF 40-200 956 400 487 219,1 52,4 147 323,9 88,9 158 255 360

Article numbers for variants & accessories

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Are you interested in a HSF - flangeable float regulator?

Just use our easy contact form.

We then select the perfect model for you.

Of course, you can select a variant for yourself with our selection program “WITT Select.