Ibaiondo AMR-PLUS vertical pressure tank, blue, on legs, front view
Ibaiondo AMR-PLUS vertical tank with top cover and legs, second view on white

Ibaiondo AMR-PLUS pressure tank with replaceable membrane for booster pump sets

Capacity
Regular price€596,43
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Shipping calculated at checkout.

  • 3 in stock
  • Backordered, shipping soon

At Q-TECH, we apply the same clear rules for everyone: the law protects you, and when applied correctly, it protects us as well. By processing your purchase, you accept our General Terms and Conditions of Sale. If you are purchasing as a consumer (B2C), nothing stated herein limits the rights granted to you by mandatory law (RDL 1/2007, TRLGDCU): the 3-year legal warranty of conformity and the right of withdrawal under the terms and with the exceptions legally provided, which are detailed below. References to "B2B" apply only to businesses and professionals.

Your guarantees

  • Rights intact: 14 days of withdrawal from receipt for most products—subject to the legal exceptions you will see below, such as goods made to your specifications—and a 3-year legal warranty of conformity, under the terms of the TRLGDCU.
  • Conformity with the description: we guarantee that the equipment will correspond to the published technical description and what one could reasonably expect from it (arts. 115 et seq. TRLGDCU). Images and videos are for guidance only: the manufacturer may supply a more recent revision of the product or introduce minor aesthetic, packaging, or firmware changes, without this constituting a lack of conformity as long as the described characteristics and performance are maintained.
  • Traceability that also protects you: we document the condition, serial number, and seal of each piece of equipment upon shipment, and we video-record the opening of returns; this is your proof of the condition in which the goods were delivered.

Responsible use and your part

  • If you are thinking of returning it, keep it as you received it: without installing or activating it, with its seals, accessories, and packaging intact. This is how to ensure a full refund, without deductions.
  • Handling that exceeds inspection reduces value: handling the equipment beyond what is necessary to verify its nature and operation may result in a real, assessed, and case-by-case justified deduction (art. 108.2 TRLGDCU), never a fixed percentage. In particular: activating or registering the serial number, linking it to a manufacturer's account or app, circulating water through hydraulic equipment, unsealing probes, or installing software or consumables. Initial inspection of the product does not lead to a deduction.
  • The same item must be returned: withdrawal requires returning the supplied unit. Different equipment, or equipment with prior use, age, or wear prior to purchase, does not constitute a valid withdrawal.
  • Installation and cybersecurity, shared responsibility: this is technical hardware; you are responsible for correct installation, credentials, patches, and backups, while we deliver a compliant product. Q-TECH is not liable for damages resulting from poor installation, incorrect configuration, or omission of patches by the customer or third parties (in B2C, without prejudice to the legal warranty and liability for intent or negligence, arts. 86 and 130 TRLGDCU).
  • Delivery of bulky goods: delivery is made to the curb. B2C: transport risk is ours until physical delivery (art. 66 ter); we recommend noting visible damages on the delivery note and notifying us of breakages within 24-48 hours with photographs to activate the insurance. B2B: inspection and notation on the delivery note are mandatory; hidden damages must be reported within 24 hours (art. 366 CCom). Unjustified rejection or incorrect shipping information will entail the actual outbound and return costs (approx. €85-550 for heavy machinery).

Made to your measure (Advanced Pre-Assembly)

  • If your order includes equipment, racks, hydraulic assemblies, or technical rooms made or configured according to your specifications (permanent joints, custom cuts or wiring, parameterization, pressure testing), these are custom goods without the right of withdrawal from the conclusion of the contract (art. 103.c TRLGDCU; CJEU Case C-529/19), which is informed before purchasing and documented in the signed Order Note. A test you request without permanent modification retains your right of withdrawal, with only the actual loss of value caused by that test being deducted. Would you prefer to receive it tested, configured, and ready to connect, without assuming these risks? Contract our Advanced Pre-Assembly or the prior technical audit.

If you are purchasing as a business or professional (B2B)

  • The transaction is governed by the Commercial Code: firm sale, without the right of withdrawal; notification of defects within 4 days (apparent) / 30 days (hidden), arts. 336 and 342. Q-TECH acts as a distributor and excludes indirect damages, loss of profit, and data loss, limited to the price of the equipment, without prejudice to the manufacturer's commercial warranty.

Product warnings v1.0 · June 2026. Information summary; the complete and binding conditions are those published at q-tech.es.

Pressure tank with a replaceable membrane that keeps your booster pump set under steady pressure

The Ibaiondo AMR-PLUS pressure tank holds a reserve of pressurised water next to your booster pump set. Ibaiondo makes it in Spain and you will find it here in four sizes, from 200 to 700 litres. At Q-Tech we fit it into your pre-assembled plant room, connected and tested with the pumps before it reaches site.

Summary

TypeVertical pressure tank with replaceable membrane
Brand and modelIbaiondo AMR-PLUS
UseBooster pump sets for water supply and fire-fighting
Capacities200, 300, 500 and 700 litres
Maximum working pressure10 bar
Compatible withDrinking water; membrane to EN 13831
Manufacturer warranty5 years
Q-Tech installationBuilt into a pre-assembled plant room or connected by an on-site hourly Expert Technician

What is the Ibaiondo AMR-PLUS?

The Ibaiondo AMR-PLUS is a pressure tank for drinking-water booster pump sets that has a replaceable membrane. The membrane separates the water from a chamber pre-charged with nitrogen. It stands upright on its legs, next to the pumps.

What problem does it solve?

Without a reserve of pressurised water, the pump in your booster set starts every time someone opens a tap. Ibaiondo explains that the tank keeps that reserve and secures the supply. The result is fewer pump starts, a longer life for the booster set and an energy saving, according to the manufacturer.

A tank that is too small does not prevent those starts, and a fixed-membrane tank is replaced whole when the membrane fails. On the Ibaiondo AMR-PLUS you replace the membrane only, and the series carries a 5-year manufacturer warranty. Ibaiondo states that the volume is sized to the Spanish standard UNE 149202 and the building code CTE DB HS4.

Technical data

ApplicationBooster pump sets, on the discharge side
MembraneReplaceable, to EN 13831, suitable for drinking water
Body materialSteel
Maximum working pressure10 bar
Test pressure15 bar
Factory pre-charge3 bar, nitrogen
Maximum system temperature100 °C
Working temperature−10 °C to +70 °C
Water connectionBrass, R 1½" male thread
TopCover and 1" socket for accessories
FinishBlue powder coating, RAL 5012
StandardsMade in accordance with the Pressure Equipment Directive 2014/68/EU
Made inSpain

Models and data by variant

ModelCapacityDiameterHeightConnectionWeightPart numberReplacement membrane
220 AMR-PLUS200 litres485 mm1,400 mmR 1½"49 kg0322003166700203
350 AMR-PLUS300 litres485 mm1,965 mmR 1½"60 kg0335003166700206
500 AMR-PLUS500 litres600 mm2,065 mmR 1½"90 kg0350003166700206
700 AMR-PLUS700 litres700 mm2,145 mmR 1½"158 kg0370003166700209

Compatibility and limits

  • The Ibaiondo AMR-PLUS has a replaceable membrane suitable for drinking water, to EN 13831.
  • It works at a maximum pressure of 10 bar in all four models.
  • The working temperature is −10 °C to +70 °C, and the system maximum is 100 °C.
  • It connects at the bottom through an R 1½" brass male thread.
  • The top cover has a 1" socket for accessories.
  • Ibaiondo states that the blue powder coating is made for outdoor exposure.
  • Each model takes its own replacement membrane: check the part number in the table.

When this product is not the right choice

ProductWhen to choose itCapacities in our shopMaximum pressureFactory pre-charge
Ibaiondo AMRYou need 24 litres, or prefer the red series with an air pre-charge24, 300, 500 and 700 litres8 or 10 bar, depending on model1.5 bar, air
Ibaiondo CMRYour circuit is domestic hot water5 to 80 litres8 or 10 bar, depending on model3 bar, air
Ibaiondo CMFYour circuit is a closed heating or cooling circuit8 to 500 litres4, 5 or 6 bar, depending on model1.5 bar, air

Frequently asked questions

Which Ibaiondo AMR-PLUS model do I need?

It depends on the flow rate, the number of pumps and the start and stop pressures of your booster set. Ibaiondo publishes a volume calculator for pressure tanks (in Spanish) and refers to standard UNE 149202.

What is the delivery time?

It is in stock at our warehouse. If no units are available when you order, we order it urgently and tell you the updated delivery time.

Is the Ibaiondo AMR-PLUS suitable for drinking water?

Yes. Its membrane is suitable for drinking water, to EN 13831, and Ibaiondo publishes a declaration of suitability for human consumption.

Can the membrane be replaced?

Yes. The membrane is replaceable and you will find it under replacement membranes for Ibaiondo AMR-PLUS, with one part number for each size.

What pre-charge does it arrive with?

3 bar of nitrogen. That is the factory pre-charge; check the Ibaiondo instructions before changing it.

What warranty does it have?

5 years. That is the warranty Ibaiondo states in its 2026 catalogue for the AMR-PLUS series.

Q-Tech installation and support

A well-chosen pressure tank only does its job when it is properly connected and its pre-charge is set for your booster set. Q-Tech delivers it inside a pre-assembled plant room: assembled, wired and tested at our workshop, arriving on site ready to connect. You book it with the Expert Technician workshop pre-assembly service.

If your installation already exists, an on-site hourly Expert Technician connects the Ibaiondo AMR-PLUS and checks its pre-charge. For selection questions there is the technical call. You can see the whole range under pressure tanks and Ibaiondo expansion vessels, or write to us on WhatsApp or through contact.

Documentation

Availability and lead times: this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.

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