DLSGeneral Industrial Control
DLS Series Industrial Chiller
Sub-zero industrial cooling · reliable round-the-clock operation
Temperature control across chemical, pharmaceutical, food and machining applications.
- Temperature range-25℃ / -40℃ – RT
- Cooling capacity0.5~55kW
- ProtectionMulti-level alarms
- CommunicationRS485 Modbus RTU
- CondensingAir / water cooled
Overview
The DLS industrial chiller serves external applications requiring rapid cool-down, and industries that must hold low temperature: chemical, biological, pharmaceutical, freeze-drying, food and defence. Two temperature bands are available, -25℃–RT and -40℃–RT. The circulation circuit uses a fully sealed SUS304 design, with air- or water-cooled condensing and optional explosion-proof construction.
Features
- 01Reliable, designed for 24/7 continuous duty
- 02Fully sealed SUS304 circulation circuit
- 03Wide model range with custom builds supported
- 04Optional explosion-proof construction (Exp / Exd)
Typical Applications
- Chemical reactor and crystallisation cooling
- Low-temperature source for pharmaceutical and freeze-drying
- Coating and filling temperature control in lithium-battery lines
- Process cooling for machining and food industries
Working Principle
Model Designation
DLS—B0.5WN
- 1. Product series code
- 2. Temperature code: A -10℃–RT, B -25℃–RT, C -40℃–RT; 5℃–RT is not marked
- 3. Capacity code: cooling capacity at 5℃ above the minimum outlet temperature, e.g. 0.5 kW at -20℃. For industrial and precision chillers it is the capacity at a 20℃ outlet; for screw chillers it is the compressor code
- 4. Condensing: W for water-cooled; air-cooled is not marked
- 5. Non-standard code: see the non-standard code rules; omitted if not required
Specifications
Data taken from the GPTECH product catalogue. Contact us for other models or custom specifications.
SpecificationsDLS Series -25℃–RT
| Model | DLS-B05 | DLS-B1 | DLS-B1.5 | DLS-B2.5 | DLS-B3.5 | DLS-B5 | DLS-B7 | DLS-B10 | DLS-B15 | DLS-B20 | DLS-B25 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Main application | For external applications requiring rapid cool-down and sustained low temperature: chemical, biological, pharmaceutical, freeze-drying, food and defence industries. | |||||||||||
| Temperature range | -25℃–RT | |||||||||||
| Cooling capacity kW | 0℃ | 1.5 | 2.5 | 3.5 | 5.8 | 8 | 11.5 | 15 | 25 | 35 | 45 | 55 |
| -10℃ | 0.75 | 1.5 | 2.3 | 3.8 | 5.3 | 7.5 | 10.5 | 15 | 22.5 | 30 | 37.5 | |
| -20℃ | 0.5 | 1 | 1.5 | 2.5 | 3.5 | 5 | 7 | 10 | 15 | 20 | 25 | |
| Max. pump flow L/min | 20 | 30 | 30 | 50 | 50 | 110 | 110 | 140 | 140 | 200 | 250 | |
| Max. pump head m | 15 | 25 | 25 | 35 | 35 | 40 | 40 | 50 | 50 | 35 | 35 | |
| Buffer tank volume L | 10 | 20 | 30 | 40 | 50 | 60 | 80 | 100 | 150 | 200 | 250 | |
| Controlled variable | Unit outlet temperature control | |||||||||||
| Control accuracy | On/off control, settable to ±2℃ (with optional electric-heating precision model, accuracy up to ±0.1℃) | |||||||||||
| Communication | RS485 interface as standard, Modbus RTU protocol | |||||||||||
| Temperature feedback | Outlet temperature (PT100) | |||||||||||
| Protection | Real-time status display and automatic fault diagnosis with multi-level alarms: earth leakage, power failure, circulation-pump overload, compressor overload, high/low refrigerant pressure, over-temperature and sensor fault. | |||||||||||
| Circulation circuit | SUS304, fully sealed circuit design | |||||||||||
| Refrigerant | R404A | |||||||||||
| Port size | G1/2 | G3/4 | G3/4 | G3/4 | G3/4 | G1 | G1 | DN32 | DN32 | DN40 | DN50 | |
| Water-cooled (suffix W) | Flow m³/h | 0.6 | 0.8 | 1.1 | 1.5 | 2.2 | 3 | 4.2 | 6 | 9 | 12 | 15 |
| Water temp. | Flow rates are calculated at 20℃ water temperature. Cooling water inlet must stay between 5℃ and 33℃, otherwise unit operation is affected. | |||||||||||
| Pressure | 2–4.5 bar | |||||||||||
| Port size | G1/2 | G1/2 | G1/2 | G3/4 | G3/4 | G1 | G1 | DN32 | DN32 | DN40 | DN50 | |
| Dimensions, water-cooled cm | 65×45×125 | 65×45×125 | 65×45×125 | 75×55×145 | 75×55×145 | 85×55×145 | 90×65×155 | 115×75×175 | 125×85×195 | 155×100×225 | 155×100×225 | |
| Dimensions, air-cooled cm | 65×45×125 | 65×45×125 | 75×55×145 | 85×55×145 | 85×55×145 | 90×65×155 | 115×75×175 | 125×85×195 | 155×100×225 | 200×120×255 | 220×150×225 | |
| Weight, air-cooled kg | 125 | 135 | 165 | 195 | 225 | 295 | 415 | 585 | 895 | 1235 | 1855 | |
| Enclosure | Powder-coated cold-rolled steel (standard RAL 9016, SUS304 optional) | |||||||||||
| Power supply ph/v/Hz | 1/220/50 | 3/380/50 | ||||||||||
| Connected load kW | 1.5 | 2 | 2.3 | 3 | 4 | 6 | 8.5 | 11 | 15 | 22 | 28 | |
| Options | Explosion-proof design (pressurised type suffix Exp, flameproof type suffix Exd) | |||||||||||
※ Notes
- Cooling capacities are based on 20℃ cooling-water inlet temperature; air-cooled units at 20℃ ambient.
- Flow and head figures apply to water at 20℃; pump performance varies with the density and temperature of the medium.
- Buffer tank volumes are indicative and can be adjusted to the required ramp rate and thermal storage.
- Only part of the product range is listed. For other models or customised requirements please contact our sales team. Specifications are subject to change without notice.
SpecificationsDLS Series -40℃–RT
| Model | DLS-C05 | DLS-C1 | DLS-C1.5 | DLS-C2.5 | DLS-C3.5 | DLS-C5 | DLS-C7 | DLS-C10 | |
|---|---|---|---|---|---|---|---|---|---|
| Main application | For external applications requiring rapid cool-down and sustained low temperature: chemical, biological, pharmaceutical, freeze-drying, food and defence industries. | ||||||||
| Temperature range | -40℃–RT | ||||||||
| Cooling capacity kW | -10℃ | 1.5 | 3.5 | 5.2 | 8.5 | 12 | 17 | 23 | 34 |
| -20℃ | 1.0 | 2.3 | 3.5 | 5.8 | 8 | 11.5 | 16 | 23 | |
| -40℃ | 0.5 | 1 | 1.5 | 2.5 | 3.5 | 5 | 7 | 10 | |
| Max. pump flow L/min | 15 | 30 | 40 | 45 | 60 | 90 | 150 | 200 | |
| Max. pump head m | 20 | 25 | 30 | 35 | 40 | 40 | 50 | 50 | |
| Buffer tank volume L | 15 | 25 | 35 | 50 | 75 | 100 | 150 | 200 | |
| Controlled variable | Unit outlet temperature control | ||||||||
| Control accuracy | On/off control, settable to ±2℃ (with optional electric-heating precision model, accuracy up to ±0.1℃) | ||||||||
| Communication | RS485 interface as standard, Modbus RTU protocol | ||||||||
| Temperature feedback | Outlet temperature (PT100) | ||||||||
| Protection | Real-time status display and automatic fault diagnosis with multi-level alarms: earth leakage, power failure, circulation-pump overload, compressor overload, high/low refrigerant pressure, over-temperature and sensor fault. | ||||||||
| Circulation circuit | SUS304, fully sealed circuit design | ||||||||
| Refrigerant | R404A | ||||||||
| Port size | G1/2 | G1/2 | G1/2 | G3/4 | G3/4 | G1 | DN40 | DN50 | |
| Water-cooled (suffix W) | Flow m³/h | 0.8 | 1.2 | 1.8 | 3 | 3.6 | 5 | 6.8 | 9.5 |
| Water temp. | Flow rates are calculated at 20℃ water temperature. Cooling water inlet must stay between 5℃ and 33℃, otherwise unit operation is affected. | ||||||||
| Pressure | 2–4.5 bar | ||||||||
| Port size | G1/2 | G1/2 | G1/2 | G3/4 | G1 | G1-1/4 | DN32 | DN40 | |
| Dimensions, water-cooled cm | 65×45×125 | 75×55×145 | 75×55×145 | 85×55×145 | 90×65×155 | 115×75×175 | 125×85×195 | 155×100×225 | |
| Dimensions, air-cooled cm | 75×55×145 | 85×55×145 | 85×55×145 | 90×65×155 | 115×75×175 | 125×85×195 | 155×100×225 | 200×120×255 | |
| Weight, air-cooled kg | 155 | 185 | 205 | 285 | 415 | 585 | 895 | 1255 | |
| Enclosure | Powder-coated cold-rolled steel (standard RAL 9016, SUS304 optional) | ||||||||
| Power supply ph/v/Hz | 1/220/50 | 3/380/50 | |||||||
| Connected load kW | 2.2 | 3.5 | 5 | 6.5 | 8 | 12 | 16 | 22 | |
| Options | Explosion-proof design (pressurised type suffix Exp, flameproof type suffix Exd) | ||||||||
※ Notes
- Cooling capacities are based on 20℃ cooling-water inlet temperature; air-cooled units at 20℃ ambient.
- Flow and head figures apply to water at 20℃; pump performance varies with the density and temperature of the medium.
- Buffer tank volumes are indicative and can be adjusted to the required ramp rate and thermal storage.
- Only part of the product range is listed. For other models or customised requirements please contact our sales team. Specifications are subject to change without notice.
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