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Fiamma A20 Accumulator Tank 1/2 inch BSP / 12mm Hose Adaptors

16 Reviews
$89.30$79.95
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Order now for estimated dispatch on 30th Sep 2026.

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Description

Fiamma Accumulator Tank A20. Provides a smooth, surge-free flow of water in pressure-switch pump systems, including Fiamma pumps and other brands. May be mounted in any position.

Install within the first metre of the pumped water system to stabilise pump performance. Leave access to the air valve so the precharge can be checked before installation and annually.

Sanitise the water system before first use to remove manufacturing residues. Drain the entire plumbing system before storage where temperatures below 0°C are expected.

Features

  • It has an internal pressurised diaphragm to provide a smooth, surge-free flow. The difference between just the pulsation dampener and the accumulator/pulsation dampener is in the way they are made, therefore operate. The pulsation dampener just relies on the water compressing the standard air pressure within the unit without a diaphragm. The accumulators have the air inside under pressure in the start-up stage, so in effect this gives a longer time (more water flow) between stop and start of pump for the same sized unit.
  • 1 year warranty.

Specifications

  • Manufacturer Part Number: 02478-02-
  • Brand: Fiamma
  • Barcode: 8004815450502
  • Factory air precharge: 0.9 bar (13 psi), suited to Fiamma pumps with a 1.5 bar pressure switch.
  • For other pressure-switch pumps, adjust the air precharge to the pump's start pressure, without exceeding 3 bar (approximately 44 psi).
  • Manufacturer's maximum pressure: 8 bar (116 psi). This is not the air precharge setting.
  • Dimensions with fittings: 235 mm x 150 mm x 100 mm.
  • Has 1/2 BSP thread and also adapters to 12 mm hose barb.
  • Shipping Weight: 510 grams.
  • Shipping Dimensions: 25 cm x 12 cm x 11 cm.

Further Information

Community Photos

Connections

This product connects to other products that we sell. It has the following connections:
  • BARB-1/2
  • MALE-BSP-1/2-WATER

Click to Show Connecting Products
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Fiamma A20 Accumulator Tank - 1/2 inch BSP / 12mm Hose Adaptors

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Ask us before ordering. If you buy the part we confirm for your setup and our recommendation is wrong, we’ll cover return postage and delivery of the correct replacement.

If we can’t supply a suitable replacement, we’ll refund the part.

We’ll explain any difference in the replacement part’s price before arranging the swap.

The promise applies to the setup and details we checked. If we can’t confirm suitability, we’ll say so before you buy. This is additional to your existing consumer rights.

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