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VERTICALE PERSLUCHTKETEL

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  • Beautifully finished vertical compressed air tank
  • 270 liter content electrostatically coated
  • All boilers equipped with “handhold” for inspection
  • Working pressure from 11 bar to 40 bar
  • Working temperature from -10°C to 50°C
  • Supplied as standard with all fittings and connectors
  • Overdimension in wall thickness for long life
  • Equipped with all safety certificates + CE
  • Standard available contents 270-500 and 1000 litres, larger volumes on request
  • Galvanized version; hot galvanized both inside and outside
  • For the galvanized version, at least 50 years without rust
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A compressed air receiver is an almost indispensable element for the compressor to guarantee the functioning of the compressor, and it is also an energy-efficient and relatively inexpensive way to stabilize compressed air.

Usefulness of the compressed air receiver

The compressed air receiver reserves the compressed air for use, and with the correct delta at the correct pressure.

This offers the following benefits:

The compressed air receiver ensures that you get sufficient compressed air with the correct working pressure during short-term peak consumption, possibly avoiding a heavier compressor.
With varying compressed air consumption, the (screw) compressor must frequently switch from loaded to unloaded and vice versa. The boiler equalizes these pressure and flow differences, resulting in lower energy consumption and longer compressor life.
In a reciprocating compressor, the compressed air receiver is indispensable to level the pulsating pressures.

What content?

The formula to calculate the volume of the compressed air receiver:

For a screw, vane or scroll compressor: the flow rate of the compressor increases by a factor of 0.3 eg compressor = 1000 liters x 0.3 = 300 liters
For a piston compressor this is less decisive, usually they are equipped with a boiler, more important with the piston is that it has sufficient flow, boiler is of secondary importance.

If the compressed air is constant and even, the need for content of the boiler is less important, there are many peak moments and you work with a conventional screw compressor, a larger boiler is recommended, if you work with a VSD/PM screw compressor, in theory no compressed air receiver is even needed , but it is still recommended to provide a limited boiler, for example a 500 liter

To calculate the contents of the boiler in detail, the following parameters must be taken into account, ask our advisor for a suitable offer

  • Maximum pressure and working pressure (delta) in the compressed air installation
  • Minimum pressure required for the application
  • Pressure losses on the compressed air network. (With EQOfluids virtually nil)
  • Pressure loss due to dryer. Between 0.2 and 0.8 bar depending on dryer
  • Pressure loss through the filters
  • The usage intervals prescribed by the manufacturer
  • Compressor flow/power
  • The required flow rate, compressor related rather than boiler related
  • Peak consumption: duration, frequency and volume, also here rather a concern for the compressor
  • Compressor type, piston, screw, scroll, baffles, or the VSD/PM screw
  • Diameter and length of the compressed air network, this also functions as a compressed air storage, with oversized pipes

Javac has stove enamelled compressed air tanks of 270 liters, and hot-galvanized boilers with a capacity of 500 liters and 1000 litres, these are stock items. This in operating pressures of 11, 16 and 40 bar. Larger boilers are also available and for which a delivery period applies.

What maximum pressure for my installation?

In industrial environments, the usual maximum pressures for compressed air are 11 bar or 16 bar, for high-pressure compressors we also offer 40 bar boilers with the safety valve, the manometer and the fittings are adapted to this pressure. The maximum pressure of the compressed air receiver is best provided 1 bar higher than the compressed air pressure. At a working pressure of 8 bar (delta 10 bar) you provide a compressed air receiver of 11 bar. If you work with 13 bar, (eg for tire companies) provide a boiler with 16 bar. Also take into account the safety regulations regarding the minimum and maximum temperature, and the location of the compressed air receiver, etc.

Version of the compressed air receiver

The choice should be made for a (cheaper) stove enamelled boiler or a galvanized (galva) compressed air boiler? A galvanized boiler is more expensive than an enamelled version but has a noticeably longer lifespan, the thick zinc layer on the inside and outside makes the boiler rust-resistant. In contrast to the cheaper cold galvanizing, Javac uses the hot dipped galvanized rust protection. By also coating the inside with a layer of zinc, rusting through is largely prevented because of the condensation water that remains behind during the compressed air production in the boiler.

If you place the compressed air reservoir in front of the dryer, a galvanized one is a must to avoid corrosion. After all, compressed air contains a large amount of water. The combination of the zinc treatment, food-grade oil in the compressor, and a series of filters before and after the dryer prevents the compressed air from being contaminated with impurities, which could endanger food safety. A further treatment with, among other things, a plasticization or vitroflex, then has no added value.

Boiler before or after the dryer?

A “wet compressed air tank” is directly connected to the compressor and to the condensation or absorption dryer dryer. The compressed air goes directly from the compressor to the compressed air tank, before being dried at the top of the boiler through the pre-filter by the compressed air dryer.

Benefit:

Condensate and various particles end up at the bottom of the compressed air tank and these are not captured in the pre-filter and the air dryer is partially relieved. This results in a higher efficiency of the pre-filter and dryer. Drain the condensate (water, dirt, oil residues, etc.) from the compressed air receiver daily. Via the drain valve at the bottom of the boiler, this condensate is classified as hazardous waste and must also be treated as such. Water accumulates surprisingly quickly and significantly reduces the capacity of the boiler. In this way you ensure that your compressed air receiver contributes to a smooth and energy-efficient compressed air supply
The compressor runs more smoothly due to an almost absent pressure drop.

A “dry compressed air tank” is placed after the dryer and obtains already dried compressed air with some filtering.

Benefit:

The compressed air from the dry boiler is ready for use. And this works optimally during peak consumption.
The capacity of the dryer can be better calculated.

For larger compressed air systems with fluctuating flow rates, it is best to provide a wet and a dry boiler. If the flow rate is constant, a wet compressed air tank is sufficient.

Additional compressed air tank for the compressor

Do you suffer from pressure drops on the compressed air network? eg. Because your compressed air installation is quite extensive, or because an additional large compressed air user has installed? Then place an extra boiler on your network. An ideal location for the additional compressed air receiver is at the farthest end of the (ring) pipe, or next to the larger compressed air collector. This avoids difficult pressure drops

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