Flooded Screw Chiller
Industrial chiller with flooded evaporator and semi-hermetic flooded screw compressor
- Refrigerant: R22/R134a
- Power source: 3Ph 380V 50Hz
- Industrial Manufacturing & Process Cooling Used in chemical and pharmaceutical industries for reactor cooling and temperature control in production lines, such as PVC polymerization and drug synthesis. In food processing, it ensures stable cooling for dairy pasteurization, beer fermentation tanks, and cold storage rooms (–5°C to 5°C). In automotive manufacturing, it supports paint shop climate control and welding equipment cooling.
- Large Commercial Buildings Ideal for shopping malls, luxury hotels, and major hospitals requiring 24-hour stable cooling through central air conditioning. In data centers, it maintains precise temperature control (±0.5°C) to prevent overheating and downtime.
- District Cooling & Ice Storage Systems Suitable for urban CBDs, airports, and other centralized cooling projects, where high efficiency meets base load demands. Works seamlessly with ice storage systems, producing ice at night and providing cooling during the day to optimize energy costs.
- New Energy & Specialized Applications Applied in lithium battery production for electrode coating machine cooling and temperature regulation in drying workshops, including explosion-proof designs when required. In nuclear power plants, it provides cooling for auxiliary equipment and non-radioactive zones within the nuclear island.
- Public Facilities & Venues Supports large HVAC systems in subway or high-speed rail stations, handling sudden peak loads. In stadiums and exhibition centers, it delivers rapid cooling during major events, offering an energy-efficient solution for large-scale commercial air conditioning systems.
| Model | HTSF- | ||||||||||||
| | | | | | | | | | | | | ||
| Nominal Cooling capacity | kW | 289 | 367 | 497 | 698 | 808 | 945 | 1144 | 1407 | 1978 | 2010 | 2416 | 3956 |
| kcal/h (×104) | 25 | 31 | 43 | 60 | 70 | 81 | 98 | 121 | 170 | 173 | 216 | 340 | |
| Coefficient of performance (COP) | 5.9 | 6.1 | 6 | 6 | 6.2 | 6.3 | 6.2 | 6.2 | 6 | 6 | 6 | 6 | |
| Refrigerant | R22/R134A | ||||||||||||
| Power source | 3Ph 380V 50Hz | ||||||||||||
| Compressor | Type | Semi-hermetic twin-screw compressor | |||||||||||
| Quantity | 1 set | 2 sets | |||||||||||
| Start mode | Y-△ | ||||||||||||
| Capacity control | 3-step, 4-step or stepless capacity control | ||||||||||||
| Input power (kW) | 49 | 60 | 83 | 116 | 131 | 150 | 184 | 228 | 329 | 335 | 402 | 652 | |
| Operating current (A) | 83 | 101 | 140 | 195 | 220 | 252 | 310 | 383 | 552 | 562 | 675 | 1095 | |
| Evaporator | Type | High-efficiency tube and shell flooded evaporator | |||||||||||
| Flow rate (m³/h) | 50 | 63 | 85 | 120 | 139 | 163 | 197 | 242 | 340 | 345 | 432 | 680 | |
| Pipe connection (mm) | DN100 | DN100 | DN100 | DN125 | DN150 | DN150 | DN150 | DN200 | DN200 | DN250 | DN250 | DN300 | |
| Water pressure drop (kPa) | 50 | 50 | 50 | 50 | 50 | 50 | 55 | 55 | 55 | 58 | 58 | 60 | |
| Condenser | Type | Shell and tube | |||||||||||
| Flow rate (m³/h) | 58 | 73 | 98 | 133 | 162 | 188 | 228 | 281 | 396 | 375 | 499 | 792 | |
| Pipe connection (mm) | DN100 | DN100 | DN125 | DN150 | DN150 | DN150 | DN150 | DN150 | DN200 | DN250 | DN250 | DN300 | |
| Water pressure drop (kPa) | 46 | 46 | 47 | 47 | 48 | 48 | 50 | 50 | 53 | 53 | 56 | 58 | |
| Dimensions | Length (mm) | 3100 | 3100 | 3200 | 3650 | 3700 | 3700 | 3700 | 3750 | 3800 | 4850 | 5400 | 5990 |
| Width (mm) | 1200 | 1200 | 1260 | 1360 | 1550 | 1650 | 1700 | 1700 | 2200 | 2100 | 2050 | 2350 | |
| Height (mm) | 1700 | 1700 | 1850 | 1990 | 2200 | 2250 | 2300 | 2500 | 2850 | 2300 | 2500 | 3050 | |
| Net weight (kg) | 2500 | 2500 | 3100 | 3500 | 3600 | 4000 | 4350 | 5800 | 7200 | 8380 | 11500 | 13550 | |
- Nominal operating condition parameters: The inlet/outlet temperature of chilled water is17 ℃/12℃, and the inlet/outlet temperature of cooling water is 30℃/35℃.
- The evaporator is a high-efficiency shell and tube flooded liquid evaporator, and the condenser is a high-efficiency shell and tube condenser. The design pressure on the water side is 1.0 MPa.
- Due to technological improvements, the external dimensions and weight may change. Therefore, the above values are provided for reference only.
- Considering transitional and actual operating conditions, it is recommended that the flow rate of the chilled water pump be 1.2 times the evaporator water flow rate, and the flow rate of the cooling water pump be 1.35 times the condenser water flow rate.
We customize and deliver industrial chillers and process cooling equipment to match your specifications
Which type of cooling system is recommended for locations with limited installation space?
In sites where there’s limited space, scroll chillers are an excellent choice. Their compact design allows them to fit into smaller areas while still providing reliable cooling performance, making them ideal for small-scale or space-restricted installations.
What type of cooling system is suitable for electronics manufacturing facilities?
Electronics manufacturing requires high heat exchange efficiency and stable, continuous operation to maintain consistent product quality. Flooded or falling-film screw chillers are suitable for these applications, as they deliver precise temperature control and efficient cooling performance even under demanding production conditions.
Which type of chiller is recommended for areas with limited water availability?
In regions where water supply is scarce or inconvenient to access, air-cooled chillers are the best option. They do not require an external cooling tower, making installation more flexible and maintenance simpler, while still providing reliable cooling performance.
What type of chiller is most suitable for data centers?
Data centers require cooling equipment that can operate year-round, deliver precise temperature control, and maximize energy efficiency. Variable-frequency centrifugal chillers and magnetic bearing centrifugal chillers are the best options fo data centers, as they can maintain stable room temperatures with a precision of ±0.5 °C while offering superior energy-saving performance.
Which type of chiller is recommended for factories in cold regions?
For facilities located in cold climates that require cooling throughout the year, free cooling screw chillers are a suitable choice. These cooling systems take advantage of natural ambient cold to lower the chilled water temperature, significantly reducing energy consumption.

