Pressure vessels and air receivers 1500 l

1500 l

Pressure vessels and air receivers of 1500 l for compressors — ten vessels, nine vertical and one horizontal, plus two fittings kits to go with them. Their working pressure is 11, 12, 16, 32 or 42 bar, and all of them are manufactured to the Pressure Equipment Directive (PED).

Fifteen hundred litres is the choice when one thousand is not enough and the ceiling does not allow a taller vessel: the vertical 1500 l vessels have a larger diameter, which makes them slightly lower than the 1000-litre ones. You will find air receivers in the other sizes from 5 to 10000 l in our main category of pressure vessels.

Overview of 1500 l vessels for compressors

For each vessel, the table shows the design, finish, pressure and medium; for each kit, the finish of the vessel it belongs to. The dimensions and connections are shown on the product pages of the vessels.

Neither the horizontal vessel nor the standard 16-bar vertical vessel comes with the ALM coating: the horizontal one is painted only, and the 16-bar vertical one painted or galvanised. The vessels rated down to −20 °C come with all three finishes for both 12 and 16 bar.

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Why 1500 l instead of 1000 l

Fifteen hundred litres give the compressor a reserve half as large again as that of a 1000-litre vessel. The compressor then starts less often, and the vessel covers peak demand, for example during blasting or filling, before the pressure in the air network drops.

All vertical 1500 l vessels are wider and slightly lower than the 1000-litre ones, while the horizontal one is slightly shorter. The only horizontal vessel is the painted 12-bar one; the 1500 l size for 16 bar is not made in a horizontal design. You can work out whether 1500 l is enough, or whether you already need more, with the guide to choosing an air receiver in our advice centre.

Pressure: 12, 16, 32 or 42 bar

Five vessels are rated for 12 bar and suit compressors that cut out at no more than 11 bar. For a compressor rated at 13 or 15 bar, there are two vertical 16-bar vessels, a standard one and one rated down to −20 °C. The 32-bar high-pressure vessel matches a 30-bar compressor, and the 42-bar vessel suits pipework up to 40 bar.

The vessels rated down to −20 °C, the high-pressure vessels and the oxygen vessel withstand frost and are also intended for group 1 fluids except hydrogen. The oxygen vessel has white RAL 9010 paint on the outside and the ALM coating on the inside. The 11-bar stainless steel vessel in AISI304 or AISI316L steel is chosen where air purity matters, for example in pharmaceuticals or in a laboratory.

Fittings with a higher flow capacity

From 1500 l, both the fittings kits and the fully equipped vessel have a safety valve with a flow capacity of 1024 Nm³/h, which is sufficient even for more powerful compressors. It is set to 10.5 bar, so it belongs with compressors that cut out at no more than 10 bar.

The kits KVP1500-12 for the painted and KVG1500-12 for the galvanised 12-bar vertical vessel have the same parts: besides the valve, a pressure gauge with a test cock, ball valves, a condensate drain valve and mounting hardware. The fully equipped vessel VVP2-1500-12A has the fittings already mounted and arrives with the TÜV certification of the pressure assembly.

Documents and inspections

All ten vessels are manufactured to Directive 2014/68/EU on pressure equipment (PED) and bear the CE marking; they come with a declaration of conformity and instructions for use and maintenance. Inspections and their intervals are set by national regulations; what an operator in the Czech Republic must arrange is covered in our article on the obligations of a pressure vessel operator.

Where next: smaller, larger and similar vessels

Neighbouring volumes and pages that bring 1500 l vessels together with other sizes by design, finish, pressure and directive.

Does a 1500 l vessel fit under a lower ceiling than a 1000 l one?

Yes. The vertical 1500 l vessels have a larger diameter, so they are slightly lower than the 1000-litre ones. They do, however, take up more floor space.

Is there a horizontal 1500 l vessel for compressors?

One, painted, for 12 bar. A horizontal 1500 l vessel for 16 bar is not made.

Which fittings go with a 1500 l vessel?

For the 12-bar vertical vessel, there are the kits KVP1500-12 for the painted and KVG1500-12 for the galvanised version, both with the same parts and a 10.5 bar safety valve.

Is there a vacuum vessel among the 1500 l vessels?

No, a vacuum vessel is not made in this size. The nearest vacuum vessels are 1000 and 2000 l.

Send us your compressor model and the height of the room, and we will help you choose between 1000, 1500 and 2000 l.