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    Socket-Connect Check Valve

    1-1/4 Pipe Size

    Image of Product. Back orientation. Socket-Connect Check Valve, 1-1/4 Pipe Size.
    Technical Drawing of Socket-Connect Check Valve, 1-1/4 Pipe Size.
    Image of Product. Front orientation. Socket-Connect Check Valve, 1-1/4 Pipe Size.
    Image of Product. Side1 orientation. Contains SizingReference. Socket-Connect Check Valve, 1-1/4 Pipe Size.
    2-D PDF
    0000000 each
    7766K56
    In stock
    7766K56
    0000000 each
    Each
    In stock
    Streamline your design process with our Solidworks Add-In
    Available for Solidworks 2017 or newer.
    Body Material

    316 Stainless Steel

    Check Valve Type

    Swing

    Inlet

    Connects to

    Pipe

    Fitting Connection

    Socket Connect

    Gender

    Female

    Connection Port

    Inlet

    Outlet

    Connects to

    Pipe

    Fitting Connection

    Socket Connect

    Gender

    Female

    Connection Port

    Outlet

    Pressure Class

    200

    Pipe Size

    1 1/4

    Flow Coefficient (Cv)

    49

    Maximum Pressure @ Temperature

    200 psi @ 70° F

    Maximum Steam Pressure @ Temperature

    150 psi @ 350° F

    Minimum Opening Pressure

    0.5 psi

    Temperature Range

    -20° F to 400° F

    End-to-End Length

    4 1/8"

    Mounting Position

    Horizontal, Vertical

    Features

    Removable Cap

    Specifications Met

    ASTM A351

    For Use With

    Argon, Helium, Krypton, Neon, Steam, Water, Xenon

    Disc Material

    316 Stainless Steel

    Seal Material

    PTFE

    Actuation

    Pressure

    Chemical Resistance

    Excellent

    Acetone, Ammonia, Argon, Butane, Carbon Dioxide, Diesel Fuel, Fuel Oil, Gasoline, Helium, Kerosene, Krypton, Methyl Ethyl Ketone (MEK), Natural Gas, Neon, Nitrogen, Oil, Oxygen, Soap Solutions, Steam, Sulfuric Acid, Toluene (Methylbenzene), Water, Xenon, Xylene, Nitric Acid (25% Concentration), Nitric Acid (100% Concentration), Sodium Hydroxide (Caustic Soda) (25% Concentration), Sodium Hydroxide (Caustic Soda) (50% Concentration)

    Moderate

    Chlorine, Ethylene Glycol, Mineral Spirits, Salt Water, Citric Acid (25% Concentration), Citric Acid (50% Concentration), Citric Acid (100% Concentration)

    Poor

    Nitric Acid (50% Concentration)

    Fitting Type

    Connector

    Shape

    Straight

    Valve Function

    Backflow Prevention

    Valve Type

    Check

    Warning Message

    Chemical compatibility must be determined by the customer based on the conditions in which the product is being used, including the presence of other chemicals, temperature, and consistency.

    Country of Origin

    China

    DFARS Compliance

    Specialty Metals COTS-Exempt

    Export Control Classification Number (ECCN)

    2B999

    REACH Compliance

    REACH (EC 1907/2006) (01/21/2025, 247 SVHC) Compliant

    RoHS Compliance

    RoHS 3 (2015/863/EU) Compliant

    Schedule B Number

    848130.2090

    U.S.–Mexico–Canada Agreement (USMCA) Qualifying

    No

    Insert unthreaded pipe into the socket ends and weld to create a permanent, leak-tight connection. These valves open to allow flow in one direction and close when flow stops or reverses. The valve body is 316 stainless steel for excellent corrosion resistance. A removable cap provides easy access to internal components for maintenance.

    Flow Coefficient (Cv)—Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.

    The information in this 3-D model is provided for reference only.