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Home / Products / Water Cooled Chiller / Water Cooled Screw Chiller and Heat Pump, 200kW-3000kW / Industrial Chiller Professional Falling Film Type Water Cooled Water Chiller
Industrial Chiller Professional Falling Film Type Water Cooled Water Chiller Industrial Chiller Professional Falling Film Type Water Cooled Water Chiller


Industrial Chiller Professional Falling Film Type Water Cooled Water Chiller

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Type:Water-cooled type
Categories:Screw chiller
Evaporator:Falling film evaporator
Place of origin:Dezhou, China
Warranty:1 year
Certification:CE CCC ISO9001 CRAA
FOB port:Qingdao & Tianjing
Terms of Payment:L/C, T/T


 Product Description

RuiDong falling film water-cooled screw chiller is an innovative and energy-efficient product developed and sold exclusively by RuiDong Group Co., Ltd. This chiller is designed to deliver superior performance and energy savings. Compared to traditional dry water-cooled screw chillers, it can save over 18% energy, and compared to flooded water-cooled screw chillers, it can save over 8% energy.

The key features of this chiller include a falling film evaporator, an integrated high-efficiency oil separator, an electronic expansion valve, and an advanced control system. These components work together to enhance the heat exchange efficiency of the refrigerant evaporator and reduce the temperature difference between the evaporation temperature and water. As a result, the unit operates with remarkable stability, efficiency, and energy savings.


 Product Details


01. High efficiency and energy saving

With its high efficiency and energy-saving features, this technology can save more than 18% energy compared to traditional dry evaporators and more than 8% energy compared to flooded evaporators. This not only greatly reduces energy consumption but also cuts down on operating costs for customers.

02. Stable operation

The technology ensures stable operation through its use of a high-efficiency special spray falling film compressor. This compressor, equipped with twin-screw technology, runs smoothly with low noise levels and has a long service life.

03. Green environmental protection

This technology is environmentally friendly as it utilizes a small refrigerant charge. By using a spray falling film evaporator, the liquid refrigerant is sprayed onto copper tubes to form a thin refrigerant film, which leads to efficient evaporation. Compared to full liquid evaporators, this system can reduce refrigerant charge volume by 50%, resulting in both economic and environmental benefits.

04. High-efficiency oil separation technology

The technology features high-efficiency oil separation techniques, achieving a 99.99% oil separation effect. The exhaust jet impact and interception oil separation technology allows lubricating oil to return normally to the compressor, ensuring proper oil supply without interfering with the oil film on the heat exchanger.

05. Complete protection system

With a complete protection system in place, this technology offers efficient oil separation, advanced control, ejector pump return flow, and comprehensive electrical control system protection. It also includes safeguards for water flow, antifreeze, undervoltage, and phase sequence protection. These features greatly enhance the stability and safety of the unit's operation.

06. Advanced control technology

Advanced control technology is incorporated into this system, including the latest Siemens PLC programmable touch screen control. It also supports remote control and operation through computers, mobile phones, and network communication. These features greatly enhance the user's ability to operate the unit professionally, reducing the risk of misoperation and improving the overall user experience.

Falling Film type water cooled water chiller 
Unit model-RLSG 220J 270J 300J 360J 400J 440J 480J 580J 620J
Nominal cooling capacity kW 226 271 295 359 408 441 480 598 619
Input power kW 42.5 51 55.6 62.1 73.2 79.4 87.5 104.8 105.6
Running current A 73.7 89.3 96.5 115.2 126.1 135.9 148 177.1 182.6
Max.running current A 89.9 108.9 118.2 141.9 155.0 167.8 184.1 220.5 225.7
Power voltage 3-380V-50Hz
Starting mode Y-▲
Refrigerant R22
Refrigerant charge 72 87 94 115 131 141 154 191 198
Refrigerant control device Electronic expansion valve(EXV)
Compressor Type Semi-hermetic screw
Qty 1
Evaporator Type Shell& tube type
Water pressure drop kPa 70-90
Water pipe Dia. DN 80 100 100 100 100 100 125 125 125
Water flow m3/h 39 47 51 62 70 76 83 103 106
Condenser type Type Shell& tube type
Water pressure drop kPa 70-90
Water pipe Dia. DN 80 100 100 100 100 100 125 125 125
Water flow m3/h 49 58 63 77 88 95 103 129 133
Noise dB(A) 78.4 79 79.2 79.6 80.4 81.5 83.1 84.2 85.2
Unit structure Horizontal type
Dimensions(mm) L 3400 3400 3400 3400 3400 3400 3400 3400 3400
W 1450 1460 1460 1460 1500 1500 1600 1600 1600
H 2100 2100 2100 2100 2100 2100 2100 2100 2100
Installation dimensions(mm) L1 2735 2735 2735 2735 2735 2735 2735 2735 2735
W1 1150 1150 1150 1150 1300 1300 1300 1300 1300
Net weight kg 2000 2200 2300 2400 2600 2900 3200 3300 3400
Running weight kg 2400 2600 2700 2800 3250 3550 4100 4200 4300
Remarks Cooling conditions: Chilled water inlet/outlet temperature 12℃/7℃,cooling water inlet/outlet temperature 30℃/35℃

Q1: What is the size of the unit?

A1:  The minimum size of the unit is 1350mm*1800mm*700mm. However, our products support customization and can design appropriate size according to your needs. So you don't worry.

Q2: Could you help us to recommend the model for our project?

A2: Yes, we have engineer to check the details and make the scheme for you. Based on the following: Cooling capacity, Refrigerant, Ambient temperature, Voltage, For what industry, The building drawing and  Any other special requirements.

Q3: About our export ability?

A3:Ruidong products are exported to more than 50 countries and regions in the world, including Russia, Central Asia, Eastern Europe,Argentina, Southeast Asia, Indonesia, etc.The annual export value is $ 5 million.

Q4: Are you friendly for users with low purchases?

A4: We are professional air -conditioning manufacturers, support OEM, ODM, and ensure product quality. You can buy with confidence.

Q5: When will the order be shipped after payment?

A5: After the order is placed, it supports delivery within 7 working days. If the purchased products need to be customized, we need to communicate with the engineer before it can be determined.




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Integrating design, production, sales and installation of central air-conditioning products.

Bangkok RHVAC 2024
Placeholder ImageLocation: Bangkok InternationalTrade and Exhibition Center
Date: 07-10 Sep., 2024
Booth: EH103-104,BITEC

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