Bitzer 2KC-3.2K, Reciprocating compressor, Semihermetic, 2 Cylinders
Use this catalogue to identify the spare parts you need to repair your compressor. The OEM catalogue is crossreferenced with our spare parts database, matched items are highlighted. Some of our existing spare parts may not be shown because our database is incomplete (e.g. missing OEM P/N), or because we sell the items separatelly (typical example is the piston-connecting rod assembly). If you have any doubt please ask us.
All OEM manufacturer's names, part numbers, diagrams, products description and information are provided for reference and identification purposes only, and it is not implied that any part listed is the product of the OEM manufacturer.
Compressor description by Ralkin
Introduction: The BITZER 2KC-3.2K is a legacy Octagon series semi-hermetic compressor designed specifically for subcritical Carbon Dioxide (R744) applications. Part of the specialized 2KC..4FC block, this unit is engineered to handle the high pressures associated with CO2 refrigeration, making it a reliable choice for commercial and industrial refrigeration systems.
Model Identification
- 2: Indicates the unit has 2 cylinders.
- K: Identification letter for bore and stroke (displacement indicator).
- C: Series identifier denoting the OCTAGON series housing optimized for subcritical CO2.
- 3.2: Motor size code, corresponding to the nominal horsepower rating.
- K: Oil charge identifier, signifying a standard CO2 ester oil fill.
Technical Features
- Application: Exclusively designed for subcritical CO2 (R744) cascade systems.
- Design: Heavy-duty Octagon housing reinforced to withstand high-pressure differentials typical of CO2 applications.
- Lubrication: Utilizes a specialized oil charge system compatible with high-solubility CO2 requirements.
Specifications & Data
- Displacement: 2 cylinders with K-series bore/stroke geometry.
- Motor Size: 3.2 (Nominal HP code).
- Pressure Limits: Reinforced for working pressures up to 40 bar (suction) and 53 bar (discharge).
- Lubricant Type: BITZER-approved Polyolester (POE) oil (e.g., BSE85K or BSE60K).
- Crankcase Heater: Mandatory PTC heater required to prevent oil dilution during standstill.
| Item num. | Ralco P/N | OEM P/N | Description (from OEM manufacturer) | Add | |
|---|---|---|---|---|---|
| 1 | KIT23324 | 37283401 | Gasket set. | ||
| 2 | BRG2201 | 31111216 | Bearing bush / Slide bearing; dimensions: Ø28 × Ø25 × 25 (Radial); from year: 2. | ||
| 3 | BRG2201 | 31111216 | Bearing bush / Slide bearing; dimensions: Ø28 × Ø25 × 25 (Radial); from year: 2. | ||
| 4 | WAS2203 | 31210301 | Thrust washer; dimensions: Ø33 × Ø26,5 × 3. | ||
| 5 | WAS2203 | 31210301 | Thrust washer; dimensions: Ø33 × Ø26,5 × 3. | ||
| 6 | CKS23300 | 30110950 | Eccentric shaft. | ||
| 7 | KEY2308 | 38400103 | Parallel key; dimensions: 6 × 6 × 45 (steel DIN 6885 - A). | ||
| 9 | 30229801 | Connecting rod / piston; dimensions: Ø30. | |||
| 22 | 00000007 | Article no longer available; from year: 3. | |||
| 24 | GKT23300 | 37293701 | Gasket; dimensions: 202 × 202 × 0,38 (metallic support). | ||
| 26 | GKT41008A | 38240130 | Gasket ring; dimensions: A8 × 14 × 2 (copper). | ||
| 27 | 38022806 | Hexagon head screw; dimensions: M8 × 25 (ISO 4017 - M8 × 25 - 10.9); from year: 2. | |||
| 32 | BRG23310 | 31111215 | Bearing bush / Slide bearing; dimensions: Ø23 × Ø20 × 25 (Radial); from year: 2. | ||
| 39 | WAS23300 | 38209111 | Adjusting washer; dimensions: Ø32 × Ø22 × 2 (DIN 988 - Ø32 × Ø22 × 2). | ||
| 40 | 34602212 | Built-in motor; dimensions: Ø160 (40S 1,8 HP). | |||
| 44 | AGT2302 | 32110502 | Oil splasher plate; dimensions: Ø156 × 33. | ||
| 46 | 38015302 | Hexagon head screw; dimensions: M5 × 10 (DIN 933 - M5 × 10 - 10.9). | |||
| 47 | SPGCMW9 | 38215005 | Thrust washer; dimensions: Ø9 (spring steel); from year: 2. | ||
| 54 | 31300017 | Washer; dimensions: Ø30 × Ø10,5 × 6. | |||
| 55 | SPGCMW10 | 38220105 | Single-coil spring washer; dimensions: A10 (DIN 127). | ||
| 56 | 38016901 | Hexagon head screw; dimensions: M10 × 30 (DIN 933 - M10 × 30 - 10.9). | |||
| 70 | 37507901 | Plug; dimensions: Ø8 × 16. | |||
| 89 | GKT23205 | 37271801 | Gasket; dimensions: 32 × 48 × 0,38 (metallic support). | ||
| 90 | GKT23204 | 37293801 | Gasket; dimensions: 52 × 52 × 0,38. | ||
| 91 | TER2210 | 34550015 | Terminal plate; dimensions: 52 × 52 × 39 (6-wire). | ||
| 92 | TER2205 | 34550401 | Terminal plate; dimensions: 48 × 32 × 39. | ||
| 93 | 38022807 | Hexagon head screw; dimensions: M6 × 16 (ISO 4017 - M6 × 16 - 10.9); from year: 2. | |||
| 94 | 31502701 | Earth screw; dimensions: M6 × 42. | |||
| 95 | 38022807 | Hexagon head screw; dimensions: M6 × 16 (ISO 4017 - M6 × 16 - 10.9); from year: 2. | |||
| 96 | TER2204 | 34342801 | Terminal plate. | ||
| 98 | WAS2E115 | 38210154 | Toothed washer; dimensions: A6,4 (spring steel galvanized DIN 6797). | ||
| 100 | 36150122 | Schrader valve; dimensions: 1/4" - 18 NPTF. | |||
| 110 | 32035402 | Lifting eye; dimensions: 51 × 30 × 4. | |||
| 120 | 36131551 | Shut-off valve; dimensions: Ø16; from year: 2. | |||
| 121 | 36620650 | Protective cap; dimensions: 3/4" - 16 UNF (aluminum); from year: 3. | |||
| 130 | GKT1236 | 37270203 | Gasket; dimensions: 35 × 60 × 1; from year: 2. | ||
| 131 | GKT1236 | 37270203 | Gasket; dimensions: 35 × 60 × 1; from year: 2. | ||
| 132 | BLTCMA8X020 | 38034001 | Cheese-head screw; dimensions: M8 × 20 (ISO 14579 - M8 × 20 - 8.8); from year: 2. | ||
| 150 | 36131564 | Shut-off valve; dimensions: Ø12; from year: 2. | |||
| 151 | 36620650 | Protective cap; dimensions: 3/4" - 16 UNF (aluminum); from year: 3. | |||
| 158 | GKT23301 | 37271301 | Gasket; dimensions: 24 × 52 × 1. | ||
| 159 | BLTCMA8X020 | 38034001 | Cheese-head screw; dimensions: M8 × 20 (ISO 14579 - M8 × 20 - 8.8); from year: 2. | ||
| 160 | PLT23224 | 30405504 | Valve plate; dimensions: Ø30. | ||
| 161 | GKT23324 | 37251601 | Gasket; dimensions: 152 × 102 × 0,7. | ||
| 162 | GKT23350 | 37261701 | Gasket; dimensions: 152 × 102 × 0,38 (metallic support). | ||
| 164 | 30236034 | Cylinder head; dimensions: 152 × 102 × 51,5. | |||
| 165 | 38001963 | Hexagon head screw; dimensions: M10 × 65 (ISO 4014 - M10 × 65 - 10.9); from year: 3. | |||
| 166 | 38001911 | Hexagon head screw; dimensions: M10 × 70 (ISO 4014 - M10 × 70 - 10.9); from year: 2. | |||
| 167 | PLU2E200 | 36610021 | Plug; dimensions: 1/8" - 27 NPTF. | ||
| 173 | 36110027 | Pressure relief valve; dimensions: 1/4" - 18 NPTF (34 bar). | |||
| 174 | 00000011 | is not required for this type !. | |||
| 178 | 00000011 | is not required for this type !. | |||
| 190 | 34322402 | Oil heater (100..240 V - 60 W). | |||
| 190 | 34322401 | Oil heater (400 V - 60 W). | |||
| 200 | 37000019 | Kit damper elements (elastomer). | |||
| 237 | GKT23000T | 37220010 | Gasket ring; dimensions: Ø31,9 × 1,6 × 1,8 (PTFE); from year: 2. | ||
| 238 | GLS23300 | 36181501 | Sight glass; dimensions: Ø22 × 1 1/8" - 18 UNEF. | ||
| 240 | GKT23300 | 37293701 | Gasket; dimensions: 202 × 202 × 0,38 (metallic support). | ||
| 241 | SRN23300 | 36201201 | Suction gas filter; dimensions: Ø24 × 41,7. | ||
| 242 | 30523804 | Housing cover. | |||
| 243 | 38022806 | Hexagon head screw; dimensions: M8 × 25 (ISO 4017 - M8 × 25 - 10.9); from year: 2. | |||
| 470 | SEN2101 | 34703504 | Compressor protection device (110/230 V - 50/60Hz); from year: 2. | ||
| 470 | SEN2101 | 34703504 | Compressor protection device (110/230 V - 50/60Hz); from year: 2. | ||
| 470 | 34702804 | Compressor protection device (24 V - 50/60 Hz); from year: 2. | |||
| 470 | 34702805 | Compressor protection device (24 V - DC); from year: 2. | |||
| 472 | 38040206 | Cheese-head screw; dimensions: M4 × 16 (DIN 84 - M4 × 16). | |||
| 473 | BLT23154 | 38050154 | Oval head screw; dimensions: M6 × 16 (DIN 7985 - M6 × 16 - 4.8). | ||
| 475 | NUT42300 | 38130104 | Hexagon nut; dimensions: M6 (ISO 4032 - M6 - Ms). | ||
| 477 | 34595001 | Recommendation sign; dimensions: M6. | |||
| 478 | WAS70033 | 38200203 | Washer; dimensions: A6,4 (brass DIN 125). | ||
| 479 | WAS2E115 | 38210154 | Toothed washer; dimensions: A6,4 (spring steel galvanized DIN 6797). | ||
| 484 | 34350241 | Terminal box; dimensions: 206 × 136 × 73 (aluminum); used in: x. | |||
| 484 | BOX2244 | 34350944 | Terminal box; dimensions: 202 × 95 × 57 (IP65); from year: 2. |
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