The membrane water tank is a necessary element for a long lasting and regularly working potable water distribution system. Its function is to increase the pressure with which the aqueduct water reachers the end-user. The water tank moderates the changes of pressure gathing the exceeded pressure to optimize the work of the pump. Varem water tanks are suited for all types of water systems: industrial, home, and agricultural. Varem membranes are balloon-shaped and are directly attached to the flange, avoiding any contact between water and the metal surfaces of the tank. Furthemore, the introduction of the membrane after tank painting preserver its elasticity, impermeability and non-toxicity. Varem not only
produces its metal tanks, but also the rubber membranes, thanks to an exclusive know-how, and for most ranges produces the rubber compound too, so maintains under its control the most important component of the pressure tanks

Varem LR Features

• Thickness: Varem uses extra thick sheet metal, capable of withstanding extremely high stress levels, to manufacture all its vessels.
• Advantages of using extra thick sheet metal:
• • Higher fatigue strength of the vessel
• • Longer lifespan of the vessel
• • Greater resistance to corrosion perforation
• • Greater resistance to internal pressure
• • Greater resistance to possible knocks and to external stresses.

MEMBRANE

Varem produces in-house the membranes, so Varem can perform high quality receipts specially designed for the conditions of use of the tanks. The company mould the membranes in-house and stores them in controlled areas to protect them against temperature, humidity and sunlight. The designed shapes and very thick membranes allow a perfect distribution of stresses and a correct elongation, so the membrane has no area subject to greater stress. These properties grant a long shelf life to the expansion tank. Our operators make a visual check on the membranes. After the control, the membranes receive the approval for use inside the expansion tank. Each membrane is checked and tested by our skilled operators, to ensure they are totally free of defects, and to remove parts that require to be trimmed. Only after careful control do the membranes receive approval for use inside our vessels.

Varem uses two types of membrane:

- DIAPHRAGM membranes

- BALLOON membranes

• The membrane encloses an area inside the vessel containing all the liquid entering it

• Advantages: no contamination of the liquid elimination of corrosion increased lifespan

Varem S.p.A. uses balloon membranes for all its product lines, as they ensure increased lifespan and do not alter the chimico-physical properties of liquids contained in the vessel.

FLANGE

The purpose of the flange is to provide a fastening surface for the membrane and for the counter flange and thus allow the connector to be attached to the vessel. The most important feature of the flange is its stiffness, as the fewer deformations it has, the better adhesion of the membrane will be, thus improving vessel tightness. VAREM uses extra thick sheet metal to manufacture its flanges, which allows the thread to be produced directly on the component. Moreover, VAREM uses at least 6 screws with a suitable cross section to connect flange and counter flange, thereby guaranteeing even distribution of loads over the entire flange area.

Varem LR Goals 

• Varem uses two types of membrane: DIAPHRAGM membranes
  • The membrane encloses an area inside the vessel containing all the liquid entering it
  • Advantages:
  - no contamination of the liquid
  - elimination of corrosion
  - increased lifespan
  Varem S.p.A. uses balloon membranes for all its product lines,
  as they ensure increased lifespan and do not alter the

Varem LR Options 1" NPT Connection

• 5.3 Gallons
• 13 Gallons
• 26.5 Gallons

What's included with the Varem LR

• Free Shipping