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    • Delavan 7871-111Y-SB FB3 Advanced 12V Diaphragm Pump, 7.0 GPM, 100 PSI, Bypass, 1/2" FNPT Ports
    • Delavan 7871-111Y-SB FB3 Advanced 12V Diaphragm Pump, 7.0 GPM, 100 PSI, Bypass, 1/2" FNPT Ports, image 2

    Delavan 7871-111Y-SB FB3 Advanced 12V Diaphragm Pump, 7.0 GPM, 100 PSI, Bypass, 1/2" FNPT Ports

    Vendor: Delavan Type: Diaphragm Pump
    Regular Price $273.59
    Shipping calculated at checkout.

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    The Delavan 7871-111Y-SB is the 100 PSI bypass version of the PowerFLO Advanced FB3, Delavan's most advanced high-flow 12 volt pump. It delivers 7.0 GPM, runs continuously with an internal bypass and uses a new diaphragm retaining system that maintains flow longer in demanding work like soft washing and de-icing.

    Key Features

    • FB3 pumps are Delavan’s new advanced 12V smooth running, five chamber diaphragm pumps that features Extended Pump Life and Improved Performance
    • The FB3 is the most advanced, high flow 12V pump on the market, built with quality components, such as stainless fasteners, and high torque motors standard
    • The new diaphragm retaining system allows the pump to maintain its flow for longer hours of operation in demanding applications
    • The FB3 pumps feature Santoprene diaphragms and valves, to handle the FB3 pumps’ higher flow rates
    • Like all Delavan diaphragm pumps, this heavy duty pump can run dry and will self-prime
    • Made in the USA
    • 100% Factory tested
    • 2 Year warranty from date of purchase
    • If you are going to be running continuous use with any bypass model of pump, Delavan also recommends that you purchase a heat sink for the motor
    • Bypass Design – Continuous operation with internal bypass
    • Capable of being run dry
    • Excellent self-priming capability

    Specifications

    Brand Delavan
    Manufacturer Part Number 7871-111Y-SB
    Motor Type 12 VDC permanent magnet, totally enclosed, non-ventilated
    Motor Leads 12 AWG, 6” long
    Motor Max Amps (100 PSI) 25
    Motor Duty Cycle See Heat Rise graph
    Motor Shell Coated Steel
    Housing Polypropylene
    Valves Santoprene
    Diaphragm Santoprene/Stainless Steel
    Fasteners Stainless Steel
    Pump Type 5-chamber positive displacement
    Liquid Temperature 140° F Max.
    Priming Capabilities 14’
    Max. Flow 7.0 GPM
    Max Pressure 100 PSI
    Inlet/Outlet Ports 1/2” FNPT
    Packaging Small box
    Weight 9.75 lbs

    Frequently Asked Questions

    How does the FB3 improve on the FB2?

    The FB3 adds a new diaphragm retaining system that maintains flow over longer hours, plus high-torque motors and stainless fasteners as standard.

    What is the current draw?

    Up to 25 amps at 100 PSI. Leads are 12 AWG, 6" long.

    Can it run continuously?

    Yes, with the internal bypass. Delavan recommends a heat sink for extended continuous use.

    What ports does it have?

    1/2" FNPT threaded ports. A 3/4" Quick Attach version is the 7971-111Y-SB.

    Will it self-prime?

    Yes, up to 14 feet, and it can be run dry.

    Product Specifications
    Specification Name Specification Value
    Color pattern Black, Gray
    Hardware material Stainless steel
    Power source DC-powered
    Service & Support

    Warranty

    This product is backed by a 12-month limited warranty, covering defects in materials and workmanship under normal use.

    Technical Assistance

    Our dedicated support team is available to assist with product setup, operation guidance, and troubleshooting. Contact us via email or phone for prompt service.

    Documentation & Downloads

    Access essential resources including the user manual, technical specifications, and safety instructions in our online support center.

    Replacement Parts & Accessories

    We offer a full range of genuine replacement parts, including batteries, chargers, and compatible accessories to ensure long-term performance.

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