Marine Seawater Cooled Cascade Screw Chiller
Product Details:
- **Model No.:** VT-65DFF
- **Application Fields:** Cooling System
- **Application Machine:** Machining Center
- **Certification:** RoHS, ISO, CE
- **Condition:** New
- **Product Name:** Marine Seawater Cooled Cascade Screw Chiller
- **Cooling Capacity:** 165kW
- **Run Control:** PLC Microcomputer Control
- **Compressor:** Semi-Closed 5:6 Asymmetric Twin-Screw Compressor
- **Refrigeration Input Power:** 40kW
- **Rated Current:** 68A
- **Energy Regulation:** 0-25%-50%-75%-100%
- **Evaporator:** Stainless Steel Heat Exchanger
- **Condenser:** Shell and Tube Heat Exchanger
- **Refrigerant:** R22
- **Trademark:** VENTTK/OEM
- **Transport Package:** Wrap Film/Pallet
- **Specification:** Refrigerant Unit
- **Origin:** China
- **HS Code:** 8418692090
**Key Features of the Marine Seawater Cooled Cascade Screw Chiller:**
1. High-efficiency screw-rotor compressor from a world-renowned brand, offering 20–30% higher efficiency than conventional models. It has obtained multiple patents in Europe and America and passed international quality certifications like ISO9001.
2. Patented 5-to-6 rotor profile design for enhanced performance.
3. Advanced capacity control system with four-step (100%-75%-50%-25%), three-step (100%-66%-33%), and continuous control options.
4. Equipped with 11 bearings and a balance piston to reduce axial thrust, extending bearing life by 2.5 to 3.5 times compared to traditional designs.
5. Designed with high-efficiency silicon steel and special slots, along with an all-around cooling system to maximize motor efficiency under any load.
6. Built-in oil press system ensures optimal lubrication without the need for an external oil pump.
7. High-efficiency double filtration oil separator improves heat exchange performance.
8. Quiet operation with low noise and minimal vibration.
9. Available with various refrigerants such as R22, R134A, and R407C.
10. Adjustable compression ratio (Vi=2.2/2.6/3.0/3.5) to avoid unnecessary energy consumption caused by over or under-compression.
**Model List & Technical Specifications:**
| Model Item | 040WSH | 050WSH | 060WSH | 075WSH | 085WSH | 100WSH | 120WSH |
|------------|--------|--------|--------|--------|--------|--------|--------|
| Nominal Cooling Capacity (kcal/h) | 103888 | 130204 | 152564 | 212420 | 241660 | 276060 | 342280 |
| Nominal Cooling Capacity (kW) | 120.8 | 151.4 | 177.4 | 247 | 281 | 321 | 398 |
| Total Input Power (kW) | 30.9 | 37.9 | 43.3 | 56.8 | 65 | 74 | 90.3 |
| Max Running Current (A) | 71 | 84 | 128 | 123 | 140 | 160 | 195 |
| Power Supply | 3PH-380V-50HZ (200V/220V/415V 50HZ/60HZ) | – | – | – | – | – | – |
| Refrigerant Type | R22 | – | – | – | – | – | – |
| Refrigerant Charge (kg) | 22 | 27 | 33 | 42 | 48 | 55 | 68 |
| Control Method | Thermostatic Expansion Valve | – | – | – | – | – | – |
| Compressor Type | Semi-Hermetic Screw | – | – | – | – | – | – |
| Compressor Power (kW) | 30.9 | 37.9 | 43.3 | 56.8 | 65 | 74 | 90.3 |
| Start-up Mode | Y-Δ | – | – | – | – | – | – |
| Capacity Control (%) | 0-25-50-75-100 | – | – | – | – | – | – |
| Evaporator Type | Shell and Tube | – | – | – | – | – | – |
| Chilled Fluid Flow (m³/h) | 20.7 | 26.0 | 30.4 | 42.3 | 48.2 | 55.0 | 68.2 |
| Inlet/Outlet Pipe Diameter (Inch) | 3" | 3" | 3" | 3" | 4" | 4" | 4" |
| Condenser Type | Shell and Tube | – | – | – | – | – | – |
| Cooling Water Flow (m³/h) | 26.0 | 32.5 | 37.8 | 52.1 | 59.3 | 67.7 | 83.7 |
| Inlet/Outlet Pipe Diameter (Inch) | 3" | 3" | 3" | 3" | 4" | 4" | 4" |
| Safety Protection | Over Temperature, Over Current, High/Low Pressure, Flow Switch, Phase Sequence, Phase-Missing, Exhaust Overheating, Anti-Freezing | – | – | – | – | – | – |
| Dimensions (L x W x H mm) | 1960 x 855 x 1540 | 2130 x 855 x 1540 | 2450 x 985 x 1600 | 2450 x 985 x 1600 | 2750 x 1050 x 1600 | 2750 x 1050 x 1600 | 2750 x 1050 x 1730 |
| Net Weight (kg) | 820 | 950 | 1120 | 1300 | 1560 | 1720 | 2030 |
| Running Weight (kg) | 970 | 1060 | 1270 | 1480 | 1780 | 1960 | 2250 |
**Installation and Transportation Guidelines:**
1. **Unit Transportation:**
- The chiller is packed in a standard wooden box. If hoisting is required, ensure it is done carefully. Use a forklift only when the packaging is intact. Avoid applying excessive pressure on the unit after removing the package.
- Units with wheels can be rolled on flat ground, but must remain balanced during transport.
- Always handle the unit with care to prevent damage or injury.
2. **Installation Tips:**
- Install the unit in an environment with ambient temperatures between -10°C and 43°C, and relative humidity below 80%. Ensure it is placed in a dry, well-ventilated area.
- Maintain at least 2 meters of space in front of the unit and 1.5–2 meters on the condenser side.
- Place the unit on a solid concrete foundation of at least 20 cm thick. Larger units (DLP-10AS and above) should include damping devices and anchor bolts.
- Leave enough working space around the unit for maintenance and operation.
This marine seawater cooled cascade screw chiller is ideal for industrial cooling applications, particularly in machining centers and other heavy-duty environments. Its advanced technology and robust design make it a reliable choice for long-term use.
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GUANGDONG NIULI LOGISTICS MACHINERY TECHNOLOGY CO.,LTD. , https://www.gdniulilogistics.com