Pressure tank

In our shop you will find the main brands of pressure tanks, such as Aquasystem, Elbi, Varem and Zilmet. Bladder tanks, membrane or diaphragm tanks, composite fibre membrane tanks, galvanised steel booster tanks without bladder, 304 stainless steel pressure tanks without bladder. Wide choice of tank shapes and capacities in our range, as well as bladders and spare parts.

Vertical pressure vessel
horizontal pressure vessel
Bladder tank on line
Galvanized pressure tank
Accessories tank
Cistern - tank
Recovery of rainwater
Active filters
Réservoir surpresseur pompe 12/24V
2 to 3 days
Bladder tank on line
Marco diaphragm booster tank
$75.42

$75.42 tax excl.

Delivery 2 to 3 days

Accumulation and expansion vessel for drinking water., 2L and 5L tank in steel painted white, stainless steel connection, Butyl diaphragm.
Réservoir surpresseur inox pompe 12/24V Réservoir surpresseur inox pompe 12/24V 2
2 to 3 days
Bladder tank on line
Marco stainless steel diaphragm booster tank
320033
$165.73

$165.73 tax excl.

Delivery 2 to 3 days

Accumulation and expansion vessel for drinking water, volume 2L, made entirely of 304 stainless steel, male and female connection tee, Butyl diaphragm.
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Practical information

Need advice? Our team is available (Monday - Friday: 8:30-12:00 and 13:00-16:30).

Contact us

Delivery

  • Same-day dispatch for orders placed before 12 noon, in most cases.
  • Colissimo without signature in mainland France, delivery within 2 to 3 days.
  • Chronopost on request.
  • DB SCHENKER transport for oversized parcels: delivery to your freight forwarder in France, with guaranteed tracking.
Delivery terms

Advice and guides

Go to our guides

A tank to steady pressure or to store water

This category brings together diaphragm tanks (expansion vessels), vertical and horizontal tanks, liquid storage tanks and rainwater harvesting solutions.

Selection criteria

  • Capacity in litres, according to the pump flow and the number of starts to limit.
  • Maximum working pressure, higher than the pressure of your installation.
  • Material: galvanised steel or stainless steel, and a diaphragm suited to drinking water if needed.

Frequently asked questions: Pressure tanks

What does a diaphragm tank do with a pump?

It holds a reserve of pressurised water that limits the number of pump starts and absorbs pressure changes. The pump no longer starts every time a tap is opened, which extends its life.

How do I set the pre-charge pressure?

Inflate the tank when empty (no water) to about 0.2 bar below the pump start pressure, then check this pressure at least once a year. Follow the values in the manufacturer's instructions.

What tank capacity should I choose?

The bigger the tank, the less often the pump starts. Choose it according to the pump flow and how often it is used: the product page gives the capacity and the maximum pressure.

Can I use a tank for drinking water?

Yes, provided you choose a model whose diaphragm is approved for drinking water. Check this on the product page.

Do you need advice before buying?

Our team helps you choose the right equipment for your installation: call +33 3 44 25 91 01 Monday to Friday, 8:30 am to 12:00 pm and 1:00 pm to 4:30 pm (French time), or email contact@pompes-h2o.com. Public bodies can pay by administrative order (mandat administratif), with invoicing through Chorus Pro.