Screw Compressors OSKA - OSKA5341-K (NH3)

Bitzer Screw Compressor OSKA OSKA5341-K (NH3)

Screw Compressor OSKA OSKA5341-K (NH3)

High / Medium temperature range

OSK = Application for air-conditioning and medium temperature cooling

BITZER’s open screw compressors for use with NH₃ have been proving their worth on the market for many years. We offer these robust and efficient solutions for use on their own and in parallel operation with several compressors and a shared oil separator. The combination of open compressor and external standard motors makes the series exceptionally flexible and allows operation at different supply voltages. BITZER has the appropriate couplings and coupling housing as accessories in its portfolio, making it safe and easy to combine compressors with external standard motors. A significant improvement: the refrigerant circuit and electrical drive are separate, making maintenance and repair much simpler. To complement the open OS.A screw compressors, we’ve developed a complete portfolio of tried-and-tested accessories for use in large-scale commercial and industrial NH₃ refrigeration and air conditioning systems.

The OS.A95103 compressor marks the beginning of the new OS.95 series. The strengths of this new development include large volume flows up to 1,015 m³/h at 2,900 revolutions per minute, integrated control electronics, an optimised slider concept for seamlessly adjustable capacity control and Vi adjustment for maximum efficiency at every operating point.

  • High system output
  • Optimal capacity adjustment and minimal energy requirements under full- and part-load
  • Combination of various compressor sizes
Compressor type Cond.temp. Qo / Pe Saturated suction temperature °C
[°C] 12,5 10 7,5 5 0 -5 -10 -15 -20
OSKA5341-K 30 Qo 126300 115900 106600 97200 80700 66500 54100 43500 34350
Pe 19,18 18,54 17,93 17,31 16,14 15,03 13,98 12,99 12,05
40 Qo 118900 109000 100100 91100 75400 61800 50000 39800
Pe 22,90 22,20 21,40 20,70 19,34 18,06 16,84 15,66
50 Qo 109900 100700 92300 83900 69100 56300 45150
Pe 26,80 26,00 25,20 24,40 22,90 21,40 19,97

Qo - Cooling capacity [Watt], Pe - Power consumption [kW]

Compressor type Displacement with 2900 min-1 Displacement with 3500 min-1 Weight Coupling type Pipe connections Capacity control Direction of rotation Coupling type
DL SL
Discharge line Suction line
m3/h m3/h kg mm inch mm inch
OSKA5341-K 84 101 65 KS 620 DN 40 DN 50 100/75% rechts clockwise 1450bis/to/à4500