McMaster-Carr logo
    Filter by
    Valve Type
    Body Material
    Material
    Pipe Size
    Industrial Info Compare
    Fitting Connection
    Pipe Schedule
    Industrial Info Compare
    Valve Function
    Thread Type
    Actuation
    Handle Style
    Disc Material
    For Use With
    Gender
    Flow Coefficient (Cv)
    Maximum Pressure @ Temperature
    Connects To
    Fitting Type
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    8 Products

    Plastic Threaded Flow-Adjustment Valves

    For a lightweight and corrosion-resistant alternative to metal valves, these have a plastic body. They gradually open and close with multiple turns of the wheel handle to adjust and regulate flow. All have a rising stem that lifts as the valve opens and lowers as the valve closes to provide a visual indication of whether flow is on or off.
    Dark Gray PVC Body
    Image of Product. Front orientation. Flow-Adjustment Valves. Plastic Threaded Flow-Adjustment Valves.
    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.
    Overall
    Pipe
    Size
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Ht.
    Lg.
    Temp. Range,
    ° F
    Packing
    Material
    End-to-End
    Lg.
    Stem
    Type
    For Use
    With
    Valve
    Type
    Each
    NPT Female × NPT Female
    1/2 4.1150 psi @ 70° F6 1/8"3 3/8"40 to 120EPDM
    3 3/8"RisingOilGlobe00000000000000
    3/4 6.4150 psi @ 70° F6 1/2"3 3/4"40 to 120EPDM
    3 3/4"RisingOilGlobe0000000000000
    19.7150 psi @ 70° F7 9/16"4 3/8"40 to 120EPDM
    4 3/8"RisingOilGlobe00000000000000
    1 1/2 22150 psi @ 70° F10 3/4"5 1/2"40 to 120EPDM
    5 1/2"RisingOilGlobe00000000000000
     

    Plastic Socket-Connect Flow-Adjustment Valves

    Insert unthreaded pipe into the socket ends and bond with PVC primer and cement to create a permanent, leak-tight connection. These valves gradually open and close with multiple turns of the wheel handle to adjust and regulate flow. They have a rising stem that lifts as the valve opens and lowers as the valve closes to provide a visual indication of whether flow is on or off.
    Dark Gray PVC Body
    Image of Product. Front orientation. Flow-Adjustment Valves. Plastic Socket-Connect Flow-Adjustment Valves.
    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.
    Overall
    Pipe
    Size
    For Pipe
    Schedule
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Ht.
    Lg.
    Temp. Range,
    ° F
    Packing
    Material
    End-to-End
    Lg.
    Stem
    Type
    For Use
    With
    Valve
    Type
    Each
    Socket Connect × Socket Connect
    1/2 40, 80
    4.1150 psi @ 70° F6 1/8"4 3/8"40 to 120EPDM
    4 3/8"RisingOilGlobe00000000000000
    3/4 40, 80
    6.4150 psi @ 70° F6 1/2"5 1/8"40 to 120EPDM
    5 1/8"RisingOilGlobe0000000000000
    140, 80
    9.7150 psi @ 70° F7 9/16"5 15/16"40 to 120EPDM
    5 15/16"RisingOilGlobe00000000000000
    1 1/2 40, 80
    22150 psi @ 70° F10 3/4"5 1/2"40 to 120EPDM
    5 1/2"RisingOilGlobe00000000000000
     
    back to top