Aquasystem Watertech

VSV 80 ltr. membrane expansion tank solar pressure expansion tank MAG


Item number 40130

01.01.1970

${ $store.getters.currentItemVariation.variation.availability.names.name }

* Incl. VAT excl. Shipping

Structure of the pressure expansion vessel


The solar expansion tank VS/VSV and the cooling tank VSI were specially developed for use in solar systems. The high temperature resistant EPDM-HT diaphragm - up to 140 ºC - ensures trouble-free operation. In case of an overtemperature in the solar system, the cooling vessel VSI, which is installed in front of the expansion vessel, is an additional safety measure to prevent the EPDM_HT membrane from being disturbed by overtemperature.

  • Volume 80 litres
  • Operating temperature -10 °C to 140°C
  • Colour RAL 9010 (white)
  • Rubber membrane made of EPDM HT (high temprature)
  • Counterflange galvanized
  • vessel with feet
  • Inlet pressure 2.5 bar

How it works


The solar expansion tank VS/VSV and the cooling tank VSI were specially developed for use in solar systems. The high temperature resistant EPDM-HT diaphragm - up to 140 ºC - ensures trouble-free operation. In case of an overtemperature in the solar system, the cooling vessel VSI, which is installed in front of the expansion vessel, is an additional safety measure to prevent the EPDM_HT membrane from being disturbed by overtemperature.

Technical data

model Height (mm) Diameter (mm) Max. operating pressure blank Connection
VS18 430 280 10 2,5 3/4"
VS24 483 280 10 2,5 3/4"
VSV35 450 365 10 2,5 3/4"
VSV50 582 365 10 2,5 3/4"
VSV80 717 415 10 2,5 1"
VSV100 675 495 10 2,5 1"
<