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Shanghai Zequan Instrument & Equipment Co., Ltd. (Zequan International Group)

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OriginShanghai, China
Manufacturer TypeAuthorized Distributor
Origin CategoryDomestic (China)
ModelZP15UV
Price RangeUSD 700–1,400
Pure Water GradeASTM Type I
Resistivity18.2 MΩ·cm @ 25°C
Heavy Metals & Soluble Silica<0.1 ppb
Total Organic Carbon (TOC)<3 ppb
Microbial Count / Endotoxin<0.001 EU/mL
Particles (>0.1 µm)<1 particle/mL
Flow Rate15 L/h (25°C)
UV Wavelengths185 nm + 254 nm
Integrated Final Filtration0.22 µm hydrophilic membrane
System ArchitectureDual-Outlet (RO Water + Ultrapure Water)
Control InterfaceBacklit LCD touchscreen with real-time monitoring and alarm logic
In-line RecirculationYes, with programmable frequency
SanitizationManual or automated chemical disinfection protocol
ComplianceMeets ASTM D1193-20, ISO 3696:1987, CLSI EP22-A, and supports GLP/GMP audit trails when paired with optional data logging module
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OriginShanghai, China
Manufacturer TypeAuthorized Distributor
Product OriginDomestic (China)
ModelZP15DI
Output Flow Rate15 L/h at 25°C
Resistivity≥18.2 MΩ·cm @ 25°C
Heavy Metals & Soluble Silica<0.1 ppb
Total Organic Carbon (TOC)<3 ppb
Microbial Count<0.001 EU/mL
Particles (>0.1 µm)<1 particle/mL
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OriginFujian, China
Manufacturer TypeAuthorized Distributor
ModelAuto GDA-72
PricingAvailable Upon Request
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OriginFujian, China
Manufacturer TypeAuthorized Distributor
ModelM36
PricingAvailable Upon Request
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BrandVWR
OriginUnited Kingdom
Model256-026
Flow Rate Range0.5 mL to 9999.9 mL per dispense
Dispensing Speed2.1–22.0 mL/s (adjustable)
Accuracy±1.5% (5 mL), ±1.0% (10 mL), ±0.7% (25 mL)
Repeatability±1.75% (5 mL), ±1.0% (10 mL), ±0.5% (25 mL)
Tubing ID Options3 mm, 8 mm
Dimensions (L×W×H)290 × 250 × 150 mm
Weight7 kg
Control InterfaceLCD display with touch-sensitive buttons
Operating ModesManual, foot-pedal, time-interval auto-dispense, ramped (slow-fast-slow) sequence
MemoryCalibration and volume presets retained after power-off
Compatible TubingGP silicone tubing (Cat. No. 256-027: 3×7 mm
256-0285×9 mm
256-0298×12 mm)
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OriginShanghai, China
Manufacturer TypeDistributor
Origin CategoryDomestic
ModelZEALPURE Great
PriceUSD 4,200 (est.)
Purified Water GradeASTM Type III
Resistivity18.2 MΩ·cm @ 25°C
Heavy Metals & Soluble Silica< 0.1 ppb
Total Organic Carbon (TOC)< 3 ppb
Microbial Count / Endotoxins< 0.001 EU/mL
Particles (>0.1 µm)< 1 particle/mL
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OriginShanghai, China
Manufacturer TypeDistributor
Origin CategoryDomestic
ModelZealpure Classic
PriceUSD 2,800 (approx.)
Purified Water GradeASTM Type I / ISO 3696 Grade 1
Resistivity18.2 MΩ·cm @ 25 °C
Heavy Metals & Soluble Silica≤0.1 ppb
Total Organic Carbon (TOC)≤3 ppb
Microbial Count<0.001 CFU/mL
Endotoxin<0.001 EU/mL
Particles (>0.1 µm)<1 particle/mL
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OriginFujian, China
Manufacturer TypeAuthorized Distributor
Origin CategoryDomestic (China)
ModelAuto GDA-36
PricingUpon Request
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OriginShanghai, China
Manufacturer TypeAuthorized Distributor
Product OriginDomestic (China)
ModelZP15UF
Price RangeUSD 1,400–4,200
Pure Water GradeASTM Type I
Resistivity18.2 MΩ·cm @ 25°C
Heavy Metals & Soluble Silica<0.1 ppb
Total Organic Carbon (TOC)<3 ppb
Microbial Count / Endotoxin<0.001 EU/mL
Particles (>0.1 µm)<1 particle/mL
Flow Rate15 L/h (at 25°C)
Dual OutletRO Water + Ultra-Pure Water
Integrated UF Module5 kDa Molecular Weight Cut-Off (MWCO)
UV SterilizationDual-Wavelength (185 nm + 254 nm), Lamp Life ≈ 8,000 h
Final FiltrationSartorius 0.22 µm Terminal Filter
Pre-treatmentIntegrated 10″ PP + Activated Carbon + Post-Carbon Cartridges
DeionizationImported Mixed-Bed Ion Exchange Resin
System DisinfectionOnboard Chemical Sanitization Kit
DisplayBacklit LCD Touchscreen with Real-Time Monitoring
ComplianceMeets ASTM D1193-20, ISO 3696:1987, CLSI EP22-A, and supports GLP/GMP documentation workflows
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