Equipment suitable for potable water.  There is a wide range of tanks that can satisfy various installation requirements.  All membranes are certified according the most important and principle European standards for potable water.

The section consists in:

  • HYDRO-PRO Series
  • WATER-PRO Series
  • INOX-PRO Series
  • ULTRA-PRO Series : Ultra-Pro CE - Ultra-Pro extra UE - Ultra-Pro high pressure CE - Ultra-Pro high pressure extra UE
  • ULTRA-INOX-PRO Series
  • EVO Series
  • EASY-PRO Series
  • HY-PRO Series
  • Accessories

HYDRO-PRO: is our line of compact expansion tanks for sanitary hot water with a fixed potable water butyl membrane and internal epoxy coating.  These tanks are made of carbon steel and MIG welding that eliminates any sharp cutting edges inside the tank.  The shape of the membrane is designed to avoid any water stagnation and therefore the growth of any bacteria.

These tanks are used with boilers, pumps and as anti-water hammer. The sizes range from 5 to 600 liters (1 to 132 UK gallons)

They are certified according to PED 2014/68/EU, WRAS, ACS, IAPMO and NSF.

NPT fittings are available on request.

WATER-PRO: is a line of compact expansion tanks for sanitary hot water with a fixed potable water butyl membrane and internal epoxy coating.  These tanks are provided with a stainless steel fitting.  MIG welding eliminates any sharp cutting edges inside the tank.  The shape of the membrane is designed to avoid any water stagnation and therefore the growth of any bacteria.

The stainless steel fitting makes this tank particularly suited for boilers. WATER-PRO can be used with pumps and as anti-water hammer. Sizes range from 5 to 24 liters (1 to 5.3 UK Gallons).

WATER-PRO is certified according to PED 2014/68/EU, WRAS, ACS, IAPMO, and NSF. 

INOX-PRO: The expansion tanks in this line are entirely made of stainless steel.  They are especially used for systems that produce sanitary hot water produced by a boiler or from plate heat exchangers.  They are excellent choices for situations that frequire high hygienic standards and a product life time that is practically limitless. The membrane is absolutely non-toxic and is drinking and food grade.  This model of tanks, also for their reduced volumes, are particularly useful for anti-water hammer effect in water systems, preventing vibrations or noises.  They can also be used with reduced flow pumps.

Available volumes range from 0.16 to 18 liters (0.3 to 4  UK gallons).

ULTRA-PRO: pressure vessels with a food-grade replaceable membrane.  This line is ideal for every modern installation and can be applied to any type of pump.  The real volume of the pressure vessel is much greater than normal that of normal tanks of the same dimension with smaller dimensions.  A compressor is not necessary since an air cushion, separated from the water by the butyl membrane, maintains a constant pressure in the tank. These tanks can also be provided with stainless steel flanges.

Available capacities are from 8 to 3000 liters ( 1.75 to 660 UK gallons).  

They are certified by the PED 2014/68/EU, WRAS, ACS.

This line has specific models made for the Italian, European Community and Extra-European Community markets.

ULTRA-INOX-PRO: The expansion tanks in this line are entirely made of stainless steel.  They are especially used for systems that produce sanitary hot water produced by a boiler or from plate heat exchangers.  They are excellent choices for situations that frequire high hygienic standards and a product life time that is practically limitless. The membrane is absolutely non-toxic and is drinking and food grade.  This model of tanks, also for their reduced volumes, are particularly useful for anti-water hammer effect in water systems, preventing vibrations or noises.  They can also be used with reduced flow pumps.

Available volumes range from 24 to 100 liters (5.3 to 22 UK gallons), horizontal or vertical.

ULTRA-PRO EVO: pressure vessels with replaceable membranes and an innovative Tecnoprene flange.  Thanks to a tight collaboration with the University of Padua, always ahead in research and development of new materials, a new series of tanks called ULTRA-PRO EVO (Evolution) was born.  The result of this collaboration is this original ZILMET patented flange made of Tecnoprene, a Tecnopolymer with high performance and technical characteristics, that give the tank great mechanical robustness and stability,  resistance to temperature variations and corrosion.

These are available from 24 to 100 liters  (5.3 to 22 UK gallons).

EASY-PRO: expansion tanks for hot sanitary water that are manufactured with carbon steel, a fixed diaphragm membrane and a special inner polypropylene dome for long product life.  The stainless steel fitting guarantees maximum resistance against corrosion and a special external covering for long product life.

Volumes go from 8 to 24 liters (1.75 to 5.3 UK gallons). 

HY-PRO: expansion tanks are for potable water and have a replaceable membrane as well as a special flange made of steel and polypropylene.  It can be used in all applications and especially where there is limited space available.

Volumes go from 2 to 35 liters (0.44 to 7.7 UK gallons).

ACCESSORIES:  Kit for quick and easy mounting and spares for potable water

  • Mounting kit with 5-way connection (71.5mm / 2.8 inches), pressure switch 0-6 bar, manometer 0-12 bar, flexible hose (50 cm / 19.6 inches)
  • Bracket for wall mounting with bands for sanitary tanks for a volume up to 35 liters (7.7 UK gallons)
  • Tested manometer and safety valve
  • Spare membranes
  • Spare flanges in galvanized steel, or stainless steel (AISI 304 and 316)
  • Sanitary Tank  Kit with flexible hose  (30 cm / 11.8 inches), 3-way connection and air relief valve