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    Product Description

    Hot Oil Flowmeters
    Up to 40 Gallons/minute
    Smartflow® hot oil flowmeters are durable, vane-operated devices that provide visual indication of flow rate in gallons per minute. The indicator ball is separated from the process by a high temperature gasket and stainless steel plate. A glass window retains the indicator ball. This flowmeter is designed specifically for hot oil circulating loops in industrial processes.


    • Compact size works well in restricted-space locations.
    • Rugged construction provides years of dependable service.
    • 550°F (288°C) Temperature Rating allows installation into hot oil applications.
    • Economical for use in many locations throughout the plant.
    • Line mounted for easy installation without extra brackets or hardware.

    FOB KS

    Specifications and additional product information

    Wetted Parts and Materials
    Inlet Size 1" NPT(F)
    Body Carbon Steel (black oxide finish)
    Viewing Window Glass
    Vane Stainless Steel
    Spring Stainless Steel
    Pin Stainless Steel
    Gasket Non-Asbestos Fiber
    Magnet Sintered Alnico 8HE
    550°F (288°C ) max.
    Pressure 150 psi max.
    Accuracy ±10%

    GridItemIDItem NoItem InformationPriceOrder Qty
    1977HF8A40Hot Oil Flowmeter 4.75 x 2.25 x 2.25"
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    3683HF4B60Hot Oil/water flowmeter 3.75 x 1.5 x 1.5in with Temperature Gauge