Variable Capacity tanks are 'always full' due to the separate pneumatically sealed inner lid which can be set at any height within the tank; The pneumatic sealing tube is pumped up (to 0.5 Bar) with a small hand pump rather like a bicycle tyre pump.
including the alloy connection piece and one spring-clip. Note: the sizes are for the outside diameter of the lid, not the internal diameter of the tank.
Winegrowers Supplies
- Replacement Pneumatic Sealing Tubes - for Variable Capacity tanks
during fermentation it is set about 2 inches above the liquid surface, at other times the lid is lowered to rest on the liquid.
When the sealing tubes are new they are a very tight fit, difficult to stretch around the lid. With use they stretch gradually and become progressively easier to fit.![]()
Replacement pneumatic sealing tubes:-
for Lid 75 cm £33.00 - the size for 530+630 litre Italian tanks
for Lid 95 cm £38.00 - the size for 800+1000 litre Italian tanks
for Lid 115 cm £44.00
Prices shown are exclusive of Vat, as at August 2025.
Delivery will need to be charged at cost.