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LF600-075 Watts Lead Free Spring Check Valve 3/4 Inch
   Model: LF600-075
LF600-075 Watts Lead Free Spring Check Valve 3/4 Inch
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    check valve 600Watts Check Valve
    LF600-075 - 3/4 Inch

    Lead-Free LF600 Bronze Maxi-Flo Check Valves are used to prevent backflow while eliminating the effects of water hammer in the piping system. They feature a bronze body with NPT female threaded connections. Series 600 silent check valves have a low pressure drop and can be installed in a horizontal or vertical position.  They are a good, inexpensive solution for solar water heater systems, as well as many other applications.
    Maximum Pressure: 400psi (27.6 bars) WOG (non-shock) @ -20°F to 100°F (-29°C to 38°C) and 15psi (1 bar) WSP @ 250°F (121°C).

    Product Function:
    Series 600 check valves will efficiently perform all of the functions of a swing check or vertical lift check valve, and at the same time operate silently to prevent the effects of water hammer.

    Product Application:
    For residential, commercial, solar and industrial application.

    These valves are not suggested for installation in sewage ejector piping.

    Warning: Do not use for reciprocating air compressor service.

    A typical solar domestic water heating system components and layout is shown below.


    HELP » Contact Customer Support
    Toll-Free help line offering product info and ordering support
    Online e-mail technical and installation support

    Product Features:
     Conical brass disc for full fluid flow
     PTFE seat
     Install in horizontal or vertical position.
     (Consult factory for proper use in vertical installations)
     Low pressure drop equivalent to a swing check
     Stainless steel guide rod and spring (11 ⁄4" - 2")
     Silent operation
     Threaded ends
     Maximum pressure/temperatures:
    • 15 psi (1 bar) WSP @ 250° F (121° C), 400 psi (27.6 bars)
    • WOG non-shock @ -20° F (-29° C) to 100° F (38° C)

    watss 600 diagram

    • Bronze

     Guide Bushing
    • Stainless Steel

    • Stainless Steel

    • Brass

    • PTFE

    • Nitrile
    • [1-1/4"- 2" only]

    • Brass


    Product Manufacturer: Watts Industries Inc.

    Processing and Delivery Information: Please allow Processing Time as stated above for your order, plus standard transportation delivery time. Orders placed after 2PM EST may not begin processing until the next business day. Please call for Rush Processing and/or Rush Shipping options.

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