Water Cooled Screw Cascade Chiller(-55℃)
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Products Features
This series chiller lowest outlet water temperature can reach -80℃.
Low temperature and super low temperature chiller is our technical staff after decades of experience in the designing of middle low temperature chiller, learned domestic and abroad experience, has the advantages of high efficiency, energy saving and environmental protection, high reliability etc..
1. Wide temperature range: refrigerant temperature range is -35~-80℃.
2. High reliability: the semi hermetic screw compressor, improve the efficiency of the compressor operation, while avoiding the open type compressor leak, reducing refrigerant add and seal replacement, upgrade products for many years running.
3. Full automatic control: the use of advanced SIEMENS PLC control technology to achieve full automatic operation.
4. Energy-efficient: The use of semi hermetic screw compressor with economizer operation, improve the operation efficiency, at the same time, low temperature and intermediate level using efficient imported heat exchanger, to ensure that the unit load and full load can be efficient and energy saving operation
5. Energy regulation: mahcine can realzie 4 level 25-50-75-100% and 25%~100% stepless regulation.
6. Professional and technical energy saving operation scheme: according to the different requirements of customers, we can customize the freezing technology for customers, to provide the appropriate professional products.

Water cooled screw cascade chiller(-55 ℃) technical parameter

VW-
Type 65DFD 90DFD 125DFD 170DFD 210DFD 250DFD 330DFD
Nominal cooling capacity kw 65.0 90.0 125.0 170.0 210.0 250.0 330.0
104 kcal/h 5.6 7.7 10.7 14.6 18.1 21.5 28.4
Operating control method Use PLC microcomputer control
Power Supply 380V/3N/50HZ
Startup type Y-△
Low pressure level Type Semi-closed 5:6 asymmetric twin-screw compressor
Refrigerant R23
Secondary refrigerant Ethanol
Input power(kW) 30.0 39.0 52.0 69.0 82.0 98.0 125.0
Rated current(A) 70.0 93.0 128.0 172.0 205.0 245.0 315.0
Flow(L/min) 27.7 38.4 53.3 72.5 89.6 106.6 140.7
Water pressure drop (kPa) 95.0 100.0 100.0 110.0 110.0 120.0 120.0
Interface size DN80 DN80 DN100 DN100 DN125 DN125 DN150
Evaporator Stainless steel high efficiency heat exchanger
High pressure level Type Semi-closed 5:6 asymmetric twin-screw compressor
Refrigerant R22/R404A
Input power(kW) 46.0 60.0 80.0 105.0 130.0 160.0 205.0
Rated current(A) 121.0 153.0 202.0 265.0 335.0 390.0 500.0
Flow(L/min) 28.0 38.0 51.0 69.0 85.0 102.0 132.0
Water pressure drop (kPa) 70.0 70.0 70.0 75.0 75.0 80.0 80.0
Interface size DN80 DN80 DN100 DN125 DN125 DN125 DN150
Condenser High effiency shell and tube heat exchanger
Overall dimensions Length(mm) 3000 3000 3200 3200 3200 5000 5000
Width(mm) 1800 1800 1800 1800 1800 1900 1900
Height(mm) 1750 1800 1800 1850 1950 2250 2450
Weight Machine weight(kg) 1850 2100 2300 2600 2800 3900 4500

Cooling condition: Chilled water inlet/outlet temperature -50/-55 ℃, cooling water inlet/outlet temperature 30/35 ℃
Temparature term: Chilled water outlet temperature range -57~-47 ℃, cooling water inlet temperature range 19~33 ℃
Cascade chiller usually use -35~-80℃ secondary refrigerant, can meet pharmaceutical and chemical industry, reactor crystallization, high vacuum distillation, aerospace parts test, gas recovery, food refrigeration, cryogenic weapons storage and low temperature occasions
Pre-sale services

1. Professional and technical consultation and communication.

2. Equipment selection and quotation.

3. Product application solutions recommendations.

4. Engineering solutions.

After-sale services

Warranty: 12 months guarantee for all products.

Within warranty, any problem caused by the defects of the machine itself, we will offer its service until the problem solved.

Over warranty, we will offer maintenance activity by cost only.

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