스크류 컴프레서 Renner RS132D (2018)

Renner RS132D

Screw compressor
Manufacturer: Renner
Type: RS132D
Year of manufacture: 2018
Technical data
- Main drive motor: direct drive of the compressor stages via a shaft coupling
- Oil filter / thermostat unit: regulates the cooling of the compressor oil and filters it
- Oil-injected compressor stage: compressed air generation
- Suction regulator: regulates the amount of air drawn in by the compressor
- Control cabinet: controls and regulates the compressor system
- Suction air filter: filters the air drawn in
- Radial fans: generate cooling air for the oil and compressed air coolers
- Compressed air outlet: connection point for an external compressed air network
- Minimum pressure retaining valve: maintains a minimum system pressure for oil supply, separates network / system pressure
- Fine oil separator with oil suction line, sight glasses, and check valve: oil separation via air-oil filter cartridges, return of separated oil from the compressed air
- Safety valve: relieves pressure in case of overpressure
- Oil filler plug with oil level monitoring: electronic oil level monitoring
- Oil drain: drains the oil reservoir
- Compressed air / oil combined cooler: cools the compressed air and the compressor oil
- Control system: RENNERtronic
- Integrated standby heater

Compressor
- Counterclockwise rotation (without gearbox) / Clockwise rotation (with gearbox)

Suction regulator
The suction regulator is mounted directly on the screw compressor. It regulates the volume flow of air drawn in by the screw compressor through the suction filter.
Operating principle of the suction regulator:
The suction regulator has only one main valve. This valve operates
as a stepless control valve as well as a tightly closing shut-off valve. In full-load operation, the suction cross-section is fully open with minimal pressure drop. In part-load operation, the suction cross-section is automatically regulated by
limiting the stroke and adjusted to the actual air requirement. When the system is stopped, this valve quickly and automatically closes the entire suction cross-section completely.
The multiple functions of the regulator are initiated by only one control unit.

Minimum pressure retaining valve
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The minimum pressure valve is located at the compressed air inlet of the air aftercooler.
It performs two functions:
1) As a pressure retaining valve, it prevents the pressure from dropping below a minimum overpressure of 4.5 bar when there is no back pressure. This pressure is necessary to ensure the oil supply to the compressor. At the same time, this minimum overpressure is required for good oil separation.
2) As a check valve, it prevents the backflow of compressed air from the compressed air network or the pressure vessel into the compressor system. This allows the separator vessel to be completely relieved when the system is shut down.
The valve operates automatically. Adjustment of the minimum pressure valve may only be carried out by personnel authorized by the manufacturer!

Suction air filter
The suction air filter is installed in the housing and connected to the suction regulator via a ventilation hose. The
micro-dry filter with a fineness of 10 μm is used to filter the suction air. The filter can be cleaned several times before it needs to be replaced. Use only original replacement filters!

Pressure transmitter
The pressure transmitter, used in all systems with electronic control (RENNERtronic / -Plus), is connected to the compressed air outlet (network press

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