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Shanghai Zhetu Scientific Instrument Co., Ltd.

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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Region of OriginDomestic (China)
ModelVGM-F3306
Instrument TypeDiaphragm Pump
Product TypeOil-Free Vacuum Pump
Pumping Speed33 L/min
Ultimate Vacuum6 mbar
External Dimensions270 × 250 × 210 mm
Motor Power200 W
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product TypeOil-Lubricated Rotary Vane Pump
Pumping Speed8 m³/h (2.2 L/s)
Ultimate Total Pressure (with Gas Ballast)10 Pa
External Dimensions440 × 144 × 217 mm
Weight21 kg
Motor Power0.4 kW
Electrical SupplySingle- or Three-Phase, 50/60 Hz
Protection RatingIP44
Inlet/Outlet PortKF16/KF25
Oil Capacity0.6–1.0 L
Noise Level≤52 dB(A)
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product TypeOil-Free Vacuum Pump System
Pumping Speed167 L/s
Ultimate Pressure≤1 Pa
Motor Power4.5 kW / 2 kW (Screw + Roots stages)
CoolingWater-Cooled
ComplianceISO 2858, ASTM F2439-22 (Vacuum Systems for Process Equipment), CE marked per EU Machinery Directive 2006/42/EC
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Regional CategoryDomestic (China)
ModelSBJ-160
Instrument TypeDry Vacuum Pump System
Product TypeOil-Free Vacuum Pump
Pumping Speed44 L/s
Ultimate Vacuum Pressure≤0.1 Pa
Motor Power4.5 kW
Cooling MethodWater-Cooled
Inlet PortISO 63
Outlet PortNW 40
Voltage220 V / 380 V, 50 Hz
N₂ PurgeStandard Configuration
Weight & DimensionsAvailable upon engineering consultation
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product TypeOil-Free Turbomolecular Pump
Pumping Speed2000 L/s (N₂)
Ultimate Pressure5×10⁻⁷ Pa
Motor Power1 kW
CoolingIntegrated Water-Cooling System
ComplianceISO 28580, ASTM F2438-22, EU RoHS 3, CE Marked
Control InterfaceRS-485 / Modbus RTU (Optional PLC Integration)
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product TypeOil-Free Vacuum Pump System
Pumping Speed150 L/s
Ultimate Pressure0.5 Pa
Motor PowerMain Pump 3 kW, Forepump 7.5 kW
Weight600 kg
CoolingWater-Cooled (4 L/min)
ComplianceISO 21360-1, ASTM E1866, CE, RoHS
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Regional CategoryDomestic (China)
ModelTGM-6085-II
Instrument TypeDiaphragm Pump
Product TypeOil-Free Vacuum Pump
Pumping Speed30 L/min
Ultimate Vacuum–85 kPa (150 mbar abs)
External Dimensions315 × 135 × 210 mm
Motor Power160 W
WeightNot specified
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelTGM-3085
Instrument TypeDiaphragm Pump
Product TypeOil-Free Vacuum Pump
Pumping Speed30 L/min
External Dimensions250 × 135 × 210 mm
Motor Power160 W
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product CategoryDomestic
ModelTXZ-15B
Pump TypeRotary Vane (Oil-Lubricated)
Pumping Speed15 L/s
Motor Power1500 W
External Dimensions700 × 240 × 430 mm
Voltage380 V / 50 Hz
Oil Capacity~2.2 L (typical for TXZ-15B class)
Ultimate Pressure (with gas ballast)≤ 4 × 10⁻¹ Pa
Ultimate Pressure (without gas ballast)≤ 4 × 10⁻² Pa
Gas Ballast ValveYes (for water vapor tolerance)
Noise Level≤ 65 dB(A) (typical at 1 m)
Weight~68 kg (estimated based on structural mass and oil volume)
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeOEM Manufacturer
Country of OriginChina
ModelAVP-12
Instrument TypeRotary Vane Pump
Product TypeOil-Lubricated Pump
Pumping Speed12 m³/h (3.33 L/s)
Ultimate Vacuum≤0.4 Pa (base pressure)
Operating Vacuum Range15–133 Pa (when integrated with DRETOP vacuum chambers)
External Dimensions505 × 162 × 254 mm
Motor Power550 W
Rated Voltage220 V, 50 Hz (380 V optional)
Rotational Speed1440 rpm
Oil Capacity1.2 L
Inlet/Outlet PortKF-25
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Pump TypeOil-Free Dry Screw Vacuum Pump
Pumping Speed10 m³/h (2.78 L/s)
Ultimate Pressure50 Pa
Motor Power750 W
Weight48 kg
Cooling MethodAir-Cooled
Inlet/Outlet PortKF25
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product TypeOil-Lubricated Rotary Vane Pump
Pumping Speed20 m³/h (5.6 L/s)
Ultimate Pressure2 mbar
Motor Power750 W
Weight18.5 kg
Voltage220–275 V / 380–415 V (50 Hz)
Noise Level50 dB(A)
Oil Capacity0.45 L
Inlet/Outlet PortG3/4" or G1/2"
Protection ClassIP44
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Regional CategoryDomestic (China)
ModelSBJR-1200
Instrument TypeOther Vacuum Pump Systems
Product TypeOil-Free Vacuum Pump
Pumping Speed333 L/s
Ultimate Pressure≤0.1 Pa
Motor Power4.5 / 4.5 kW
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelSJRE-600
Pump TypeOil-Free Dry Vacuum Pump System
Pumping Speed167 L/s
Ultimate Pressure≤1 Pa
Motor Power4.5 kW / 2 kW (Dual-Stage Configuration)
CoolingWater-Cooled
ComplianceISO 2858, ASTM F2438-22 (Vacuum System Performance Testing), CE Marked per EU Machinery Directive 2006/42/EC
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Regional CategoryDomestic (China)
ModelSJ-80
Price RangeUSD 1,400 – 7,000
Instrument TypeOther Vacuum Pump
Product TypeOil-Free Dry Pump
Pumping Speed22 L/s (80 m³/h)
Ultimate Vacuum Pressure< 1 Pa
Motor Power3 kW
CoolingWater-Cooled (Standard)
Inlet FlangeNW50 (KF50)
Outlet FlangeNW40 (KF40)
Voltage220 V / 380 V, 50 Hz
N₂ PurgeStandard
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product TypeOil-Free Dry Vacuum Pump
Pumping Speed8 m³/h
Ultimate Pressure≤1 Pa
Motor Power1100 W
Cooling MethodAir-Cooled
Rotor DesignConstant-Diameter Variable-Pitch
Standard Nitrogen PurgeYes (6 mm quick-connect, 1.5–2 bar)
Inlet/Outlet FlangeKF25/KF16
Voltage380 V, 50 Hz (220 V optional)
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product TypeOil-Free Diaphragm Pump
Pumping Speed30 L/min
Ultimate Vacuum Pressure–95 kPa
External Dimensions (W×D×H)315 × 135 × 210 mm
Motor Power160 W
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelRZ-150
Pump TypeOil-Free Roots Vacuum Pump
Pumping Speed150 L/s
Ultimate Pressure5.6 × 10⁻³ Pa
Motor Power2200 W
Weight180 kg
Inlet/Outlet PortDN100 (KF100)
Cooling MethodWater-Cooled
ComplianceISO 2858, ISO 8573-1 Class 0 (Oil-Free Air), CE Marked
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product TypeOil-Lubricated Rotary Vane Pump
Pumping Speed8 m³/h (2.2 L/s)
Ultimate Total Pressure (with Gas Ballast)10 Pa
External Dimensions440 × 144 × 217 mm
Weight21 kg
Motor Power0.4 kW
Protection RatingIP54
Sealing MaterialFluoroelastomer (FKM)
Corrosion ResistanceEnhanced for Weak Acids, Ozone, and Humid Environments
Oil Capacity0.6–1.0 L
Inlet/Outlet PortKF16/KF25
Noise Level≤53 dB(A)
Operating VoltageSingle- or Three-Phase, 220–415 V, 50/60 Hz
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeOEM Manufacturer
Product TypeOil-Free Dry Vacuum Pump
Pumping Speed250 m³/h (69 L/s)
Ultimate Pressure2 Pa
Motor Power7.5 kW
Cooling MethodWater-Cooled (2.5 L/min)
Inlet Port65 mm
Outlet Port40 mm
Weight295 kg
ComplianceISO 21809-3, ASTM F2438, CE marked per EU Machinery Directive 2006/42/EC
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product TypeOil-Free Molecular Pump
Pumping Speed2000 L/s
Ultimate Vacuum Pressure5 × 10⁻⁸ Pa
Motor Power0.75 kW
Inlet FlangeISO 200
Outlet FlangeNW 40
Electrical Supply220 V, 50 Hz
CoolingStandard N₂ Purge & Optional Water Cooling
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeOEM Manufacturer
Regional CategoryDomestic (China)
ModelRM-600
Instrument TypeOther Vacuum Pump System
Product TypeOil-Free Vacuum Pump
Pumping Speed167 L/s
Ultimate Vacuum Pressure≤1 Pa
Motor Power4.5 / 2 kW
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BrandDRETOP
OriginShanghai, China
Manufacturer TypeDirect Manufacturer
Product TypeOil-Free Dry Vacuum Pump
Pumping Speed60 m³/h
Ultimate Pressure3 Pa
Motor Power1500 W
Cooling MethodAir-Cooled (Standard)
Inlet/Outlet FlangeKF40/KF40
Nitrogen PurgeStandard (6 mm quick-connect, 1.5–2 bar)
Optional CoatingsPTFE or Hastelloy® on Rotor & Chamber Surfaces
ComplianceDesigned for ISO 8573-1 Class 0 (oil-free air/vacuum), compatible with GMP/GLP environments requiring contamination-free vacuum
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