Model NO.:

VT6721

After-sales Service:

Online Support

Warranty:

1 Year

Type:

Water-Cooled

Cooling Method:

Water-cooled

Unit Structure:

Integral

Selected Voltage:

380V/50HZ

Compressor Number:

Noise Level:

Ordinary

Application Fields:

Plastic

Application Machine:

Precision Machine Tool

Certification:

Condition:

New

Peformance:

Good

Product Type:

Chiller

OEM Customized:

Supported

Fin Material:

Copper/Aluminum/Stainless Steel

Fin Type:

Flat/Sine Wave/Window Fin

Compressor:

Fully Hermetic Scroll

Fan Quantity:

Inlet and Outlet Water Pipe Connection:

DN32

Chilled Water Pump Quantity:

Refrigerant:

R22

Tank:

80L

Cooling Capacity:

Customized

Weight:

Customized

Dimensions:

Customized

Refrigeration Input Power(Kw):

4.0

Trademark:

Venttech

Transport Package:

Wooden Box Package

Specification:

150-1350kw

Origin:

China

HS Code:

8418692090

Product Description

Chiller

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-machine interface.

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 variable chilled water temperature to meet the low temperature industrial requirements.

Product options

1. Salt water evaporator

2. Stepless energy regulation

3. Whole heat recovery/partial heat recovery

4. Pump/Cooling tower control

5. Special power supply

6. Remote communication connector

7. Frequency conversion

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 latest 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 efficient heat exchanger tube bundle with unique geometric characteristics and enhanced tube nucleate boiling required vaporization core, strengthened the flow disturbance inside the pipe, while delaying the scaling on the water side. The inner and outer walls are enhanced for heat transfer to achieve optimal performance. Compared to previous designs, the current unique design improves heat transfer efficiency by 30%.

Evaporator evaporation 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 optimum state, the touch panel sealed, waterproof, dustproof, corrosion-resistant, long-key life. Equipped with cooling pumps, cooling water pumps and cooling tower fan interlock control function.

Low temperature chillers

SW series of low temperature chillers based on well-known brands as the host semi-hermetic screw compressor, built-in suction filter, oil filter, oil separators, safety valve and protection module, with no leakage, low noise, stable operation.

Product specification

Refrigerant: R22/R407C/R134A/R410A

Evaporator/condenser max water pressure drop: 1.0Mpa

Evaporator: fouling factor 0.018m2.ºC/KW

Condenser: fouling factor 0.044m2.ºC/KW

Power supply: 380V/3P/50Hz

Allowable voltage fluctuate: ±5%

Allowable frequency fluctuate: ±2%

Water cooled screw chiller(single compressor) technical parameter

SW-
Type		100S	135S	175S	190S	235S	260S	300S	320S	350S	380S
Nominal cooling capacity	kw	98.0	135.0	175.6	191.1	233.3	255.6	301.1	317.8	347.8	380.0
Nominal cooling capacity	104 kcal/h	8.4	11.6	15.1	16.4	20.1	22.0	25.9	27.3	29.9	32.7
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)	23.0	30.0	39.0	42.0	51.0	56.0	63.0	66.0	73.0	80.0
	Rated current(A)	39.2	51.6	64.7	71.0	86.4	94.1	105.9	111.4	122.7	133.8
	Energy regulation	0-33%-66%-100%			0-25%-50%-75%-100%
Evaporator	Type	High efficiency dry type shell and tube heat exchanger
	Flow(m3/h)	16.9	23.2	30.2	32.9	40.1	44.0	51.8	54.7	59.8	65.4
	Water pressure drop(kPa)	45.0	45.0	48.0	48.0	50.0	50.0	50.0	55.0	55.0	55.0
	Interface size	DN65		DN80		DN100					DN125
Condenser	Type	High efficiency shell and tube heat exchanger
	Flow(m3/h)	20.8	28.4	36.9	40.1	48.9	53.6	62.6	66.0	72.4	79.1
	Water pressure drop(kPa)	42.0	42.0	45.0	45.0	48.0	48.0	48.0	52.0	52.0	52.0
	Interface size	DN65		DN80		DN100					DN125
Refrigerant	Type	R22
Refrigerant	Refrigerant volume(kg)	20.0	25.0	32.0	35.0	40.0	46.0	53.0	55.0	60.0	65.0
Overall dimensions	Length(mm)	2310	2350	2420	2690	2690	2690	3080	3080	3080	3080
	Width(mm)	660	660	660	810	840	890	920	935	935	935
	Height(mm)	1520	1550	1590	1600	1660	1660	1710	1710	1750	1750
Weight	Machine weight(kg)	850	1050	1150	1270	1340	1430	1640	1710	1780	1850
Weight	Operating weight(kG)	900	1150	1300	1420	1540	1670	1890	1930	1970	2050

SW-
Type		415S	495S	520S	570S	620S	640S	740S	820S	870S	980S
Nominal cooling capacity	kw	415.0	495.0	521.1	571.1	617.8	642.2	741.8	821.1	871.7	981.8
Nominal cooling capacity	104 kcal/h	35.7	42.6	44.8	49.1	53.1	55.2	63.8	70.6	74.9	84.4
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)	88.0	103.0	108.0	118.0	126.0	130.0	150.0	167.0	177.0	199.0
	Rated current(A)	148.8	172.8	182.5	197.7	212.8	219.6	253.0	280.7	298.1	335.2
	Energy regulation	0-25%-50%-75%-100%
Evaporator	Type	High efficiency dry type shell and tube heat exchanger
	Flow(m3/h)	71.4	85.1	89.6	98.2	106.3	110.5	128.6	141.2	150.8	169.9
	Water pressure drop(kPa)	55.0	58.0	62.0	62.0	68.0	68.0	68.0	70.0	70.0	72.0
	Interface size	DN125				DN150				DN200
Condenser	Type	High efficiency shell and tube heat exchanger
	Flow(m3/h)	86.5	102.9	108.2	118.5	127.9	132.8	154.4	170.0	181.2	204.1
	Water pressure drop(kPa)	55.0	56.0	58.0	60.0	65.0	65.0	65.0	68.0	68.0	70.0
	Interface size	DN125		DN150						DN200
Refrigerant	Type	R22
Refrigerant	Refrigerant volume(kg)	70.0	85.0	90.0	100.0	110.0	120.0	140.0	165.0	170.0	155.0
Overall dimensions	Length(mm)	3110	3340	3440	3440	3440	3440	3550	3550	3550	3550
	Width(mm)	995	995	1000	1000	1080	1280	1280	1310	1310	1325
	Height(mm)	1870	1930	2020	2020	2020	2090	2090	2240	2240	2270
Weight	Machine weight(kg)	2080	2300	2570	2850	2900	3100	3450	4050	4230	4450
Weight	Operating weight(kG)	2330	2550	2950	3000	3200	3450	3750	4450	4600	4850

Cooling condition: Chilled water inlet/outlet temperature 12/7 ºC, cooling water inlet/outlet temperature 30ºC/35ºC
Temperature term: Chilled water outlet temperature 5ºC~15ºC; cooling water inlet temperature 19ºC~33ºC.

Air cooled chiller box type (7ºC) technical parameter

SP-
Type		05ASZ	08ASZ	10ASZ	12ASZ	15ASZ	20ADZ	25ADZ	30ADZ	36ADZ	40AQZ	50AQZ	60AQZ	72AQZ
Nominal cooling capacity	kw	14.4	25.5	29.0	32.7	41.1	58.0	65.4	82.2	98.1	116.0	130.8	174.0	196.2
Nominal cooling capacity	104 kcal/h	1.2	2.2	2.5	2.8	3.5	5.0	5.6	7.1	8.4	10.0	11.2	15.0	16.9
Machine power	kw	4.7	7.3	9.7	10.9	14.3	19.4	22.3	29.1	32.2	38.2	43.8	52.4	65.2
Machine operating current	A	9.4	14.3	17.8	19.5	27.1	35.6	41.0	54.2	57.8	69.6	78.1	96.5	117.2
Compressor	Quantity	1	1	1	1	2	2	2	4	3	4	4	4	6
	Input power(kw)	4.0	6.1	8.1	9.1	12.4	16.2	18.2	24.7	27.3	32.4	36.4	43.0	54.6
	Rated current(A)	7.7	11.6	14.6	16.1	22.7	29.2	32.3	45.4	48.4	58.4	64.5	78.3	96.8
Evaporator	Type	High efficiency dry type shell and tube heat exchanger
	Flow(L/min)	41	73	83	94	118	166	187	236	281	333	375	498.8	562.4
	Interface size	DN32	DN32	DN40	DN40	DN50	DN50	DN50	DN65	DN65	DN65	DN65	DN80	DN80
Condenser	Type	High efficiency fin type heat exchanger
Condensation axial fan	Fan quantity	1	2	2	2	2	4	4	4	6	8	8	8	12
	Fan power(kw)	0.2	0.5	0.9	1.1	1.2	1.7	1.9	2.4	2.7	3.6	4.4	4.8	6.6
	Operating current(A)	0.6	1.2	1.7	2.2	2.4	3.4	4.3	4.8	5.0	6.8	7.6	9.6	12.5
Chilled water pump	Type	High efficiency, low noise centrifugal water pump
	Input power(kW)	0.55	0.75	0.75	0.75	1.10	1.50	2.20	2.20	2.20	2.20	3.00	4.0	4.0
	Head(mH2O)	22	25	22	25	23	22	22	22	21	22	23	22.0	23.0
Nominal tank volume(L)		80	115	130	130	210	230	250	310	310	330	370	510	510
Overall dimensions	Length(mm)	1050	1500	1450	1450	1570	1650	1650	1930	2300	2900	2900	3550	4270
	Width(mm)	700	800	1000	1000	1000	1450	1450	1570	1400	1500	1500	1500	1500
	Height(mm)	1090	1250	1410	1410	1510	1750	1750	1510	1550	1980	1980	1985	2000
Weight	Machine weight(kg)	180	350	450	500	700	830	1050	1250	1300	1350	1550	2150	2250
Weight	Operating weight(kG)	260	465	580	630	910	1060	1300	1560	1600	1680	1920	2800	2900

Cooling condition: Chilled water inlet/outlet temperature 12/7 ºC, ambient dry bulb temperature 35ºC

Application:
Our water cooled screw chillers, water cooled screw type low temperature unit, flooded type water hillers, air-cooled screw chiller, air-cooled, water-cooled box type chillers products have been widely used in chemical industry, chemical fiber, plastics, oil, food, as long as the industry, printing, electroplating, electronics and other industries

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Venttech Customized Water Chillers for Air Conditioning Industrial

Shanghai Venttech Refrigeration Equipment Co., Ltd.