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    產品展示|Products

    EW-74930-20 High-Pressure Gradient Piston Pump

    Preparative Digital High-Pressure Gradient Piston Pump

    EW-74930-20
    2.1
    • Deliver precise volumes at pressures up to 6000 psi
    • Ideal for use in HPLC applications
    • Pulse dampener significantly reduces pulsation with low dead volume.

    Preparative digital pump provides high flow rates and high pressure capabilities with consistent performance. Dual ball and seat check valves in each head reduce pulsation.

    Microprocessor controls motor drive circuits, interfaces with the chemical-resistant keypad and digital LED display, receives signals to refill based on flow rate, and provides RS-232 communication. Pressure control feature provides real-time pressure monitoring with upper and lower pressure limits. Other features include prime/purge valves for easy solvent change and priming capabilities, auto-flush piston wash, run/stop inputs, and dual-voltage capabilities.

    What's Included:
    6-ft power cord with plug

    Specifications
    Product Type Piston Metering Pumps
    Self-priming No
    Wetted parts 316 stainless steel pump head, check valve body, and tubing; synthetic ruby and sapphire check valve internals and piston; fluorocarbon pulse dampener diaphragm.
    Max pressure 4000 psi
    Min flow rate (mL/min) 0.1
    Max flow rate (mL/min) 100
    Dimensions 11"W x 6-1/4"H x 18"D
    Pump type Piston
    Electrical connections 6-ft power cord with plug
    Power (VAC) 110/220
    Power (Hz) 50/60
    Repeatability ±0.5%
    Duty cycle Continuous
    Operating ambient 32 to 176°F (0 to 80°C), max 98% RH
    Max temperature (o C) 100
    Max temperature (o F) 212
    Accuracy ±2%
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