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Water cooled screwed chilled water units(double type)
Model
BKS-
160W2
230W2
300W2
320W2
410W2
430W2
500W2
530W2
590W2
640W2
690W2
Cooling capacity
kW
189.8
264
344.6
369.8
478.2
494.6
582.6
615.8
687.4
744
803
×103kcal/h
163.2
227
296.4
318
411.3
425.4
501
529.6
591.2
639.8
690.6
Cooled medium
Water
Input Power
3PH-380V/50Hz Â
Compressor
type
screw refrigeration compressor
range of energy adjustment
0-12.5-25-37.5-50-62.5-75-87.5-100%
quantity
2
Rated power
kW
45.2
60.8
76.4
83.8
106.2
109.4
121.4
134.2
144.8
156.4
173
current
A
78.4
105.8
135
145.6
185
190
210.2
230.4
249.8
268
292.8
Refrigerant type
R22
Evaporator
type
Strengthen heat transfer shell and coil evaporator high efficiency
Water interface
MM
DN80
DN100
DN125
DN150
water flow rate
M3/h
34
46
60
64
84
86
102
108
120
130
140
water resistance
Kpa
52
52
53
54
58
58
60
60
64
65
68
condenser
type
Tube and shell high efficiency heat exchange
Water interface
MM
DN80
DN100
DN125
DN150
water flow rate
M3/h
42
54
74
80
104
104
126
134
148
156
174
water resistance
Kpa
45
45
46
49
55
55
58
58
60
61
63
Throttle mode
External balanced type thermal expansion valve
safety protection
water pump chain protection;phase and phase sequence protection;high/low presser protection , motor overload protection , water cut-off protection ,
 anti freezing protection , high discharge temperature protection.
Dimension
(L)mm
2800
2900
3100
3100
3280
3280
3580
3580
3630
3710
3780
(W)mm
1200
1200
1260
1260
1380
1380
1380
1400
1400
1450
1480
(H)mm
1650
1700
1800
1800
1900
1900
1900
1950
1950
1980
2080
Net weight
KG
1480
1780
2300
2430
2870
3450
3760
3950
4210
4500
5130
Run weight
1700
2070
2580
2730
3190
3800
4100
4320
4580
4920
5560
REMARK:
1,cooled water input temp. 15ºC,output temp 10ºC;cooling water input temp. 30ºC,output temp 35ºC;
2,safe working range: cooled water output temperature range 7ºC~30ºC,environment temperature range 5ºC~40ºC;
3,evaporator dirt coefficient 0.018m3. ºC/kw,evaporator water side design pressure 1.0MPa;condenser dirt coefficient 0.044 m3. ºC/kw
4,if you need special voltage and Refrigerants units R134a/R407C/R410A,please contact us.
5,for technology improved, outer dimension will be modified, only for reference of the dimension.Â
6,in addition to the above specifications , we also can do for you , to provide nonstandard custom products.
Product feature:
1. Refrigeration compressor: Germany / Taiwan Hanbell Bitzer semi hermetic screw refrigeration compressor, high efficiency, low noise, low wear and long service life etc.
2. Heat exchanger: shell and tube type condenser, shell and tube evaporator, bilateral enhanced heat exchange tube, greatly improve the heat transfer efficiency; heat exchanger compact structure, the end plate removable, easy to clean and maintain.
3. Refrigeration valve: the United States, Japan, Italy Emerson Saginomiya Castel, Danfoss and other brand-name accessories, some units with double valve control design of thermal expansion,ensure the load and the energy efficiency ratio of the system for operating more wide, cold quantity control precision is higher, the unit is always working in a reliable and efficient state.
4. Electrical parts: unit for electrical Components are used for international brands, in English / double display man-machine interface touch screen balanced controller, intuitive operation of the unit operation is more simple, multi compressor system, automatic control system according to the operating conditions of the compressor running time, stable performance
5. Energy regulation: the unit has multi-level energy regulation, to meet the needs of cold load changes, the maximum energy saving effect, saving maintenance costs and operating costs.
Safety protection:
1. exhaust valve: ensure the compressor runs- after stop, to prevent high pressure exhaust gas reflux..
2. Phase protection: to prevent excessive voltage, less voltage, lack of phase protection, reverse phase protection, to prevent the compressor reverse and damage..
3. oil heating protection: before refrigerator runs, forced to set the oil heating procedures to ensure that the oil dilution and liquidity, satisfy the lubrication conditions before operation.
4. compressor internal motor winding thermal protection: to prevent the compressor excessive load or bad condition put the coil temperature too high and burned the compressor.
5. high and low pressure protection: when conditions are bad and failure, high and low pressure switch action protection, protection compressor and system safety..
6. safety valve: ensure the condenser  working in the safe range.
7. water protection: to prevent the unit running without water.
8. anti icing protection: when the unit running, prevent the water temperature too low, the formation of internal evaporator icing and damage the evaporator.
9. overload protection: double protection of soft and hard to ensure compressor overload safety.
10. compressor oil pressure protection: the unit is running, due to poor oil system, leading to insufficient oil pressure, timely protection of compressor.
11. Oil level protection: compressor protects the compressor when the system less oil.
The unit is widely used in: aluminum oxide, aluminum oxide, electroplating, hard plastic, injection molding, extrusion, foaming machine, hydraulic equipment, laminating machine, bottle blowing machine leather embossing machine, composite flooring, food, chemical, biological, pharmaceutical, electronics and other industries
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Valve Cores & Valve Seats