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Shanghai Zhetu Scientific Instrument Co., Ltd.

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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product TypeIntegrated Circulating Chiller
Cooling MethodWater-Cooled
Temperature Range5–100 °C
Refrigeration Capacity3 HP (≈2.24 kW)
Reservoir Volume50 L
Circulation Pressure0–2 bar
Flow Rate0–30 L/min
Operating ModeContinuous
ConstructionStainless Steel Inner Tank & Work Surface
Control SystemPID-Based Digital Temperature Controller
Communication InterfaceRS485
Heating MethodImmersed Electric Heater
Compressor TypeVariable-Frequency Scroll Compressor
Safety ProtectionsOver-Temperature, Low-Level, Leak, Short-Circuit, and High-Pressure Alarms
IP RatingIP54
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Regional ClassificationDomestic (China)
ModelLC1-10
Instrument TypeIntegrated Unit
Cooling MethodWater-Cooled
Temperature Control Range5–100 °C
Refrigeration Capacity1 HP
Circulating Pump Pressure0–2 bar
Circulating Flow Rate0–30 L/min
Reservoir Volume10 L
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product TypeIntegrated Circulating Chiller
Cooling MethodAir-Cooled
Temperature Control Range−20 °C to 200 °C
Circulation Flow Rate20 L/min
Reservoir Volume5 L
Circulation ModeInternal Closed-Loop
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product TypeIntegrated Unit
Cooling MethodWater-Cooled
Temperature Control Range−10 °C to 100 °C
Temperature StabilityNot specified (contact technical support)
Circulating Pump Flow Rate20 L/min
Reservoir Capacity5 L
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product CategoryDomestic
ModelLJF30-10
Instrument TypeIntegrated Unit
Cooling MethodWater-Cooled
Temperature Control Range−10 °C to 100 °C
Temperature StabilityNot Specified
Circulating Pump Flow Rate35 L/min
Reservoir Volume30 L
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product CategoryDomestic
ModelLJF40-120
Instrument TypeIntegrated Unit
Cooling MethodWater-Cooled
Temperature Control Range−120 °C to +100 °C
Temperature StabilityNot Specified
Circulating Pump Flow Rate45 L/min
Reservoir Volume40 L
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
ModelEW20-7
Cooling Capacity-20°C (no-load)
Refrigeration MethodCompressor-based
Collection Flask Volume7.8 L
Collection Flask DimensionsØ200 × 250 mm
Inlet FittingBayonet-type (Bulb)
Outlet FittingKF25
Cold Trap Chamber Material304 Stainless Steel (optional 316L or corrosion-resistant coating)
Defrost Temperature80°C
Power Supply220 V, 50 Hz
Recommended Ambient Conditions5–25°C, ≤50% RH
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelEW40-20
PriceUSD 2,950 (approx.)
Cooling Capacity−40°C (no-load)
Refrigeration MethodCompressor-based
Condensate Collection Volume20 L
Collection Chamber DimensionsØ300 × 300 mm
Chamber Material304 Stainless Steel (optional 316L or corrosion-resistant coating)
Inlet FittingBayonet (Bulb-type)
Outlet FlangeKF25
Defrost Temperature80°C
Power Supply220 V, 50 Hz
Ambient Operating Conditions5–25°C, ≤50% RH
Integrated Drain ValveYes
Secondary FiltrationYes
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product TypeIntegrated Circulating Chiller
Cooling MethodAir-Cooled
Temperature Control Range−20 °C to +40 °C
Refrigeration Capacity0.35 kW (@ 20 °C)
Temperature Stability±2 °C (upgradeable to ±0.1 °C with E-series precision option)
Circulating Pump Flow Rate20 L/min
Reservoir Volume4 L
Operating ModeContinuous Duty
Pump PressureNot specified (load-adaptive)
Communication InterfaceRS485
Dimensions (W×D×H)200 mm × 430 mm × 450 mm
Liquid Level IndicatorIntegrated borosilicate glass sight gauge
Fluid Path MaterialsCorrosion-resistant stainless steel, PTFE, and EPDM components
RefrigerantEnvironmentally compliant (ODP = 0, low GWP)
Safety ProtectionsCondenser overtemperature, reservoir over/under-temperature, compressor overheat & overload, low-flow & dry-run detection
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeOEM Manufacturer
Regional ClassificationDomestic (China)
ModelLX5-10
Instrument TypeIntegrated Unit
Cooling MethodWater-Cooled
Temperature Control Range−10 °C to 100 °C
Circulating Pump Flow Rate20 L/min
Reservoir Capacity5 L
Temperature Stability±0.1 °C
Pump Head4–6 m
Power Supply220 V, 50 Hz
Opening DiameterΦ210 mm
Communication InterfaceRS485
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product CategoryDomestic
ModelLJF5-10
Instrument TypeIntegrated Unit
Cooling MethodWater-Cooled
Temperature Control Range−10 °C to 100 °C
Temperature StabilityNot Specified (Consult Technical Support)
Circulating Pump Flow Rate20 L/min
Reservoir Volume5 L
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product CategoryDomestic
ModelCL-260-300HE
Instrument TypeIntegrated Unit
Cooling MethodWater-Cooled
Temperature Control Range5–35 °C
Refrigeration Capacity30 kW/h
Circulating Pump Pressure0–4 bar
Circulating Pump Flow Rate0–60 L/min
Reservoir Volume260 L
Operating ModeContinuous Duty
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product CategoryDomestic
ModelCL-45-60H
Instrument TypeIntegrated Unit
Cooling MethodWater-Cooled
Temperature Control Range5–35 °C
Refrigeration Capacity6 kW/h
Circulating Pump Pressure0–4 bar
Circulating Pump Flow Rate0–60 L/min
Reservoir Volume45 L
Operation ModeContinuous
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