Water-cooled Screw Chiller(-25℃)
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Products Features
1. Twin screw compressor brand is employed, with high efficiency, low noise level, less wearing and long operation time.
2.Four stage volume control or 0%-100% automatic regulation.
3.Use PLC microcomputer control from Germany SIEMENS. LCD touch screen, both English and Chinese human-machina intertace.
4.Complete breakdown protection: high and low pressure protection, air discharge protection, oil level protection, water flow protection, reverse and lack phase protection, chilled water anti-freezing protection, cooling water overheat protection.
5.Wider range of varibale chilled water temperature to meet the low temperature industrial requirements.

Product options
1.Salt water evaporator
2.Stepless energy regulation
3.Pump/Cooling tower control
4.Special power supply
5.Remote communication connector

Product specfication
Refrigerant: R22/R407C
Evaporator max water pressure drop: 1.0Mpa
Evaporator: fouling factor 0.018m2.℃/KW
Condenser: fouling factor 0.044m2.℃/KW
Power supply: 380V/3P/50Hz
Allowable voltage fluctuate: ±5%
Allowable frequency fluctuate: ±2%

Compressor
Select semi-closed 5:6 asymmetric twin-screw compressor from world-renowned brand. The possibility of shaft seal leakage is zero. Using a rotating exhaust design, the lastest development of the fourth generation line, optimize the circumference speed, excellent design of gear so that the unit has higher compression efficiency. Motor chamber compression chamber integrally cast, high precision. Double pressure compensated rotor housing, very strong, no expansion even in the state of high pressure, and it effectively reduces the noise.

Heat exchanger
The condenser and evaporator of this series unit adopts shell and tube heat exchanger, using new high efficient heat exchanger structure. Heat exchanger adopts the most advanced and effcient heat exchanger tube bundle with unique geometric characteristics and enhanced tube nucleate boiling required vaporization core, strengthen the fluid in the tube and delay perturbationat the same time, the water side fouling, heat transfer enhanment, the inside wall in order to get the best performace, comparade to the previous design, the unique design of the heat transfer efficiency is increased by 30%.
Evaporator evapotation tube with inner grooved on outer concave tooth enhanced heat transfer technology, condenser tube with inner grooved cutter teeth technology, improves the evaporator and condenser heat transfer efficiency and the evaporation temperature, and improve the energy efficiency ratio for the unit.

PLC
A good Chinese-English interactive interface is to achieve automatic control function before the LCD display real-time statues of the machine work, precise monitoring unit operating at optimun state, the touch pannel sealed, waterproof, dustproof, corrosion-resistant, long-key life. Equipped with cooling pumps, cooling water pumps and cooling tower fan interlock control function.


Water cooled screw chiller(single compressor) -25℃ technical parameter

VW-

Type

30ST

40ST

50ST

55ST

70ST

75ST

90ST

95ST

100ST

110ST

Nominal cooling capacity

kw

30.0

40.0

52.0

56.0

68.0

75.0

88.5

93.5

102.0

110.0

104 kcal/h

2.6

3.4

4.3

4.7

6.0

6.4

7.3

7.7

8.6

9.5

Operating control method

Use PLC microcomputer control

Power Supply

380V/3N/50HZ

Startup type

Y-△

Compressor

Type

Semi-closed 5:6 asymmetric twin-screw compressor

Input power(kw)

19.5

25.5

32.0

36.5

44.0

48.4

54.4

57.3

63.6

8.80

Rated current(A)

33.0

43.6

54.6

62.3

75.8

82.6

93.0

97.8

107.7

117.5

Energy regulation

0-25%-50%-75%-...100%

Evaporator

Type

High efficiency dry type shell and tube heat exchanger

Flow(L/min)

6.4

8.5

10.6

11.7

14.8

15.9

18.0

19.1

21.2

23.3

Water pressure drop(kPa)

45.0

45.0

47.0

47.0

48.0

50.0

50.0

52.0

52.0

54.0

Interface size

DN40

DN50

DN65

Condenser

Type

High efficiency shell and tube heat exchanger

Flow(L/min)

8.6

11.4

14.1

15.5

19.6

21.0

23.7

24.9

27.7

30.3

Water pressure drop(kPa)

35.0

35.0

46.0

46.0

47.0

48.0

48.0

50.0

50.0

50.0

Interface size

DN40

DN50

DN65

DN80

Refrigerant

Type

R22

Refrigerant volume(kg)

7.7

10.2

14.1

15.4

19.2

20.5

23.0

24.3

26.9

29.4

Overall dimensions

Length(mm)

2450

2450

2700

2850

2850

2850

2850

3250

3250

3250

Width(mm)

660

660

660

890

890

920

920

920

960

985

Height(mm)

1450

1590

1590

1600

1690

1690

1690

1690

1750

1750

Weight

Machine weight(kg)

880

1080

1170

1290

1360

1440

1650

1720

1790

1860

Operating weight(kG)

1160

1360

1450

1620

1690

1770

1980

2140

2210

2280


VW-

Type

120ST

145ST

155ST

170ST

180ST

190ST

220ST

240ST

260ST

290ST

Nominal cooling capacity

kw

122.0

145.0

153.0

168.0

182.0

187.0

220.0

241.0

258.0

290.0

104 kcal/h

10.3

12.0

12.9

14.2

15.0

15.9

18.1

20.2

21.5

24.1

Operating control method

Use PLC microcomputer control

Power Supply

380V/3N/50HZ

Startup type

Y-△

Compressor

Type

Semi-closed 5:6 asymmetric twin-screw compressor

Input power(kw)

76.5

88.9

93.8

101.7

109.4

112.9

130.0

144.0

153.0

172.0

Rated current(A)

130.6

151.7

160.2

173.5

186.8

192.8

222.1

246.4

261.7

294.2

Energy regulation

0-25%-50%-75%-...100%

Evaporator

Type

High efficiency dry type shell and tube heat exchanger

Flow(L/min)

25.4

29.7

31.8

35.0

37.1

39.2

44.5

49.8

53.0

59.4

Water pressure drop(kPa)

58.0

58.0

60.0

60.0

62.0

65.0

68.0

70.0

70.0

72.0

Interface size

DN80

DN100

DN125

Condenser

Type

High efficiency shell and tube heat exchanger

Flow(L/min)

33.4

38.9

41.3

45.2

48.2

50.6

58.1

64..8

68.8

76.7

Water pressure drop(kPa)

55.0

57.0

58.0

58.0

60.0

60.0

65.0

68.0

68.0

70.0

Interface size

DN100

DN125

DN125

Refrigerant

Type

R22

Refrigerant volume(kg)

32.0

38.4

39.7

43.5

48.2

50.6

58.1

64.8

68.8

76.7

Overall dimensions

Length(mm)

3250

3250

3250

3250

3250

3650

3650

3650

3800

3800

Width(mm)

1000

1050

1050

1050

1100

1130

1130

1250

1250

1300

Height(mm)

1750

1752

1770

1770

1770

1870

1870

1870

1870

1950

Weight

Machine weight(kg)

2090

2300

2570

2850

2900

3080

3430

3780

4210

4430

Operating weight(kG)

2510

2720

2990

3270

3370

3450

3630

3980

4580

4760

Cooling condition: Chilled water inlet/outlet temperature -20/-25 ℃, cooling water inlet/outlet temperature 30/35 ℃
Temparature term: Chilled water outlet temperature range -27~-17 ℃, cooling water inlet temperature range 19~33 ℃
Chilled water side should be added by 27% glycol water or 20% calcium chloride as anti-free

Water cooled screw chiller(double compressor) -25℃ technical parameter

VW-

Type

60DT

80DT

100DT

110DT

140DT

150DT

180DT

190DT

200DT

220DT

Nominal cooling capacity

kw

60.0

80.0

104.0

112.0

136.0

150.0

177.0

187.0

204.0

220.0

104 kcal/h

5.2

6.9

8.6

9.5

12.0

12.9

14.6

15.5

17.2

18.9

Operating control method

Use PLC microcomputer control

Power Supply

380V/3N/50HZ

Startup type

Y-△

Compressor

Type

Semi-closed 5:6 asymmetric twin-screw compressor

Input power(kw)

39.0

51.0

64.0

73.0

88.0

96.8

108,8

114.6

126.0

137.6

Rated current(A)

66.0

87.2

109.2

124.6

151.6

165.2

186.0

195.6

215.4

235.0

Energy regulation

0-16.5%-33%-...100%

0-12.5%-25%-37.5%-...100%

Evaporator

Type

High efficiency dry type shell and tube heat exchanger

Flow(L/min)

12.7

17.0

21.2

23.3

29.7

31.8

36.0

38.2

42.4

46.6

Water pressure drop(kPa)

50.0

50.0

52.0

52.0

52.0

54.0

55.0

58.0

58.0

60.0

Interface size

DN50

DN65

DN80

DN100

Condenser

Type

High efficiency shell and tube heat exchanger

Flow(L/min)

17.2

22.7

28.2

31.0

39.2

42.0

47.5

49.9

55.4

60.5

Water pressure drop(kPa)

45.0

45.0

48.0

48.0

52.0

52.0

52.0

55.0

55.0

58.0

Interface size

DN65*2

DN65*2

DN80*2

DN100*2

Refrigerant

Type

R22

Refrigerant volume(kg)

15.4

20.5

28.1

30.7

38.4

40.9

46.1

48.6

53.7

58.9

Overall dimensions

Length(mm)

3570

3570

3570

3570

3570

3570

3570

3570

3570

4100

Width(mm)

1050

1100

1190

1190

1240

1280

1320

1320

1380

1400

Height(mm)

1530

1530

1540

1580

1650

1650

1650

1650

1700

2100

Weight

Machine weight(kg)

1700

1900

2150

2350

2450

2650

3050

3100

3350

3800

Operating weight(kG)

2235

2485

2885

2985

3070

3420

3860

3910

4180

4430


Chemical, chemical fiber, plastic, oil, food, pharmaceutical, military, printing, painting, electroplating, electronics and other industries
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.

VW-

Type

240DT

290DT

310DT

340DT

360DT

380DT

440DT

480DT

520DT

580DT

Nominal cooling capacity

kw

244.0

290.0

306.0

336.0

364.0

374.0

440.0

482.0

516.0

580.0

104 kcal/h

20.6

24.1

25.8

28.4

30.1

31.8

36.1

40.4

43.0

48.2

Operating control method

Use PLC microcomputer control

Power Supply

380V/3N/50HZ

Startup type

Y-△

Compressor

Type

Semi-closed 5:6 asymmetric twin-screw compressor

Input power(kw)

153.0

177.8

187.6

203.4

218.8

225.8

260.0

288.0

306.0

344.0

Rated current(A)

261.2

303.4

320.4

347

373.6

385.6

444.2

492.8

523.4

588.4

Energy regulation

0-12.5%-25%-37.5%-...100%

Evaporator

Type

High efficiency dry type shell and tube heat exchanger

Flow(L/min)

50.9

59.4

63.6

70.0

74.2

78.4

89.0

99.6

106.0

118.7

Water pressure drop(kPa)

62.0

64.0

64.0

64.0

65.0

68.0

68.0

70.0

70.0

72.0

Interface size

DN100

DN125

DN150

Condenser

Type

High efficiency shell and tube heat exchanger

Flow(L/min)

66.7

77.7

82.6

90.5

96.3

101.1

116.3

129.7

137.6

153.4

Water pressure drop(kPa)

60.0

60.0

62.0

62.0

63.0

65.0

65.0

68.0

70.0

70.0

Interface size

DN100*2

DN125*2

Refrigerant

Type

R22

Refrigerant volume(kg)

64.0

76.8

79.3

87.0

94.7

97.2

112.6

125.4

135.6

151.0

Overall dimensions

Length(mm)

4100

4100

4500

4500

4500

4500

4500

4500

4900

4900

Width(mm)

1400

1400

1450

15000

1500

1500