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Bitzer (Germany)

OS Series (Screw Compressor)

Refrigeration Compressor · Compressors

Technical data from manufacturer or class sources · not yet verified by a person​​‍‌​⁠‌​⁠‍‌⁠⁠‍​⁠‍‍‍​
50-800 kW coolingCapacity
R404A / R134a / R507A / R717 (Ammonia)Medium

Die Bitzer OS-Serie ist eine Open-Drive-Schraubenkompressor-Baureihe für große Kälteanlagen auf Schiffen, insbesondere große Fischverarbeitungsschiffe, Reefer-Carrier und LNG-Carrier-AC-Systeme. Die Schraubenbauweise bietet stufenlose Leistungsregelung (10-100%) über einen Schieber. Auch für Ammoniak (R717) als natürliches Kältemittel auf Fischereischiffen verfügbar.

Specifications

Technical data.

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TypeOpen-Drive Screw Compressor
Drive TypeElectric (external motor via coupling)
ConstructionCast iron housing, twin-screw rotor, oil-injected
Service

Service notes.

What our service work and the manufacturer documentation say about keeping this model running.

Oil analysis every 2,000 hrs. Oil separator element every 8,000-10,000 hrs. Bearing inspection at 25,000 hrs. Complete overhaul 40,000-50,000 hrs.

Inspection

Common failures & inspection points

Spares

Replacement Parts

Spare parts notes

Bitzer global network. Screw compressor parts more specialized — lead time: 2-4 weeks for bearings, 4-6 weeks for rotors.

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