Pressure vessels and air receivers 500 l

500 l

500 l pressure vessels: eleven vessels and two fittings kits from seven categories. Vertical and horizontal for 11 and 16 bar, fully equipped with fittings, two stainless steel vessels, a vacuum vessel for −1 bar, high-pressure vessels for 32 and 42 bar and a vessel for oxygen.

A 500-litre air receiver is the typical main vessel downstream of a screw compressor in a production plant. The large reserve absorbs sudden peaks in demand, so the compressor does not have to switch between off-load and on-load running as often. You will find smaller and larger volumes in the category of pressure vessels and air receivers.

500 l pressure vessel: all thirteen items

You will find the dimensions, connections and choice of finish on each vessel’s product page.

The standard vertical vessels for 11 and 16 bar and the horizontal one for 11 bar come in paint, zinc or ALM; the horizontal 16-bar vessel in paint only. The oxygen vessel is white on the outside (RAL 9010) and has an ALM coating inside.

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Vertical or horizontal 500 l vessel

A vertical vessel takes up little floor space but is tall. A horizontal one fits under a lower ceiling, but it needs length and access to both ends. You can route the air through it lengthways, so that it leaves its water at the bottom on the way.

Both orientations are made for 11 and 16 bar. The 16-bar vessel belongs with a compressor that cuts out at 13 or 15 bar, for example in a blast room. The horizontal 16-bar vessel is the largest horizontal vessel in the 100 to 720 l category for higher pressure.

How large a reserve your operation needs can be worked out with the help of our advice centre on choosing and connecting an air receiver.

Fittings kit or fully equipped 500 l vessel

From 500 l, both the kits and the fully equipped vessels have larger fittings and a pressure gauge with a test cock for the inspector’s check gauge. The KVP500-11 kit belongs with the painted vertical 11-bar vessel and KVG500-11 with the galvanised one; for this size, they differ in their reducers and plugs.

The fully equipped vessel VVP2-500-11A arrives with the fittings mounted, a safety valve set to 10.5 bar and TÜV certification of the pressure assembly. Both the kit and the fully equipped vessel suit compressors with a cut-out pressure of up to 10 bar; the kit does not belong with the 16, 32 and 42 bar vessels or with the oxygen vessel.

For oxygen, vacuum, high pressure and clean air

The oxygen vessel VVA500-11-OX is the smallest in the oxygen series and the only one for 11 bar. It is intended for oxygen and other group 1 fluids except hydrogen and withstands −20 to +50 °C. The fittings for it must be designed for oxygen, clean and free of any traces of oil.

The high-pressure VVP500-32 and VVP500-42 belong with 30-bar and 40-bar compressors. The vacuum vessel VVP500-V holds a vacuum down to −1 bar in systems with a higher demand or several vacuum pumps.

The stainless steel VVS500-11 and VHS500-11 in AISI304 or AISI316L steel are chosen where the air comes into contact with the product. From 500 l, stainless steel vessels have a working temperature of −55 to +80 °C.

The vessels from the 100 to 720 l category and the fully equipped one comply with Directive 2014/29/EU (SPVD), the stainless steel, high-pressure and oxygen vessels with Directive 2014/68/EU (PED), and the vacuum vessel with the EN 286-1 standard. Inspection intervals are set by national regulations; they are summarised in our article on pressure vessel inspections.

Other sizes and series

If 500 l is not quite right, try the neighbouring volumes or the listings by orientation, pressure and directive.

Is a 500 l pressure vessel suitable for a screw compressor?

Yes, the large reserve absorbs sudden peaks in demand in the plant. An 11-bar vessel for a compressor up to 10 bar, a 16-bar vessel for a compressor rated at 13 or 15 bar.

Which fittings kit for a 500 l vessel?

For the painted vertical 11-bar vessel, the KVP500-11 kit; for the galvanised one, KVG500-11. The other 500 l vessels are supplied without fittings; the fully equipped one has them mounted.

Is there a 500 l pressure vessel for oxygen too?

Yes, the VVA500-11-OX for 11 bar. It is white on the outside, has an ALM coating inside and suits oxygen and group 1 fluids except hydrogen.

Will a vertical 500 l vessel fit in a low room?

It is tall, so measure the ceiling height and the doorways. Under a low ceiling, a horizontal one for 11 or 16 bar is the better fit.

Not sure which of the eleven vessels to choose? Write and tell us the type of compressor and what you will be filling the vessel with.