Some compressed air projects require individually designed systems:Particularly where large-scale plant engineering projects have to meet very specific requirements and industry sector specific standards. “Off the-shelf”products just won‘t do. When you choose a BOGE solution you can rest assured that you will receive a customized compressed air system solution – after all,we have a great deal of experience with large scale projects, for renowned customers, from almost every industry sector, including the mining, automotive, pharmaceutical, chemical and food industries to power plants and refineries.

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Boge Air Compressor Leakage Monitor Brochure

Boge Air Compressor Leakage Monitor Brochure

Boge Air Compressors - Screw Compressors Brochure

Boge Air Compressors - Screw Compressors Brochure

Design Features of the Boge Air Compressor S-Series

Design Features of the Boge Air Compressor S-Series

The Boge Air Compressor - S Series - How it Works

1. Intake filter with microfilter paper insert
2. Multi-function intake controller
3. Oil injection
4. Compressor airend
5. Oil separator vessel
6. Oil separator cartridge
7. Minimum pressure non-return valve
8. Oil cooler and
9. Aftercooler parallel with cooling air flow
10. Oil microfilter
11. Thermostatic valve
12. Cleaning access point

BOGE S series screw compressors draw in atmospheric air through a cabinet pre-filter mat, into a paper intake filter (1) before entering the multifunction intake regulator (2). The cleaned air then passes into the airend that is driven by an electric motor.

Continuously cooled BOGE compressor oil is then injected into the screws in accurately metered quantities (3).
Oil fulfils three functions:

- Cooling
- Sealing
- Lubrication

It absorbs and removes the heat generated by the compression process. At the same time, it seals the compression gap between the contra rotating screws and the airend case as well as lubricating the rotor bearings.

The compressed air oil mixture leaves the airend (4) via a flanged connection directly onto the horizontal separation vessel (5) without any pressure loss. Here, the oil is initially separated by mechanical impingement and finally by precipitation caused by the rapid reduction in flow velocity, to an efficiency of more than 99%. There is zero pressure reduction.
By the time the compressed air passes through the final spin-on oil separator cartridge (6) there is a minimal residual oil content of only 1 - 3 mg/m³ in every operating mode.


After final separation, the air passes through the minimum pressure valve (7) and into the cooler pack (9) where it is cooled to approx. 8 °C above inlet temperature. A large percentage of the condensate contained in the compressed air is separated here. The compressed air then finally reaches the network via a normal gate valve.

Oil separated in the horizontal separation vessel rapidly de-aerates and therefore reduces foam quickly. Downstream in the generously sized oil cooler (8) there is optimum cooling for re-injection to the airend. The final spin-on oil filter cartridge cleans the oil so that it can be re-circulated. A thermostatic oil valve (11) ensures that all BOGE screw compressors work at an optimum temperature in all operating phases.

Boge Air Compressors - Products

Compressed air knowledge and experience are given benefits from BOGE with over 100 years of manufacturing excellence.

BOGE manufactures a complete range of lubricated and oil free screw and piston compressors from 1 to 450 HP.

When the award winning S Series range of BOGE screw compressors was launched 17 years ago it provided a revolutionary design concept. In essence it provided a high level of compressed air efficiency and reliability underpinned by a modular concept and a simplified service friendly layout.

The technical excellence designed into the award winning BOGE S series screw compressors creates a range of benefits that our customers enjoy worldwide.

Boge Air Compressors - People

Strength in detail qualifies us to provide greater service.
Global engineering is an everyday thing for BOGE these days.
With a high degree of technical know-how, our engineers design
complete compressed-air systems for all manner of applications. And
develop product innovations which are successful all over the world.

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