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    3 Products

    Adjustable Inline Pressure-Relief Valves for Chemicals

    With a three-port design, these valves allow inline flow from the inlet to the outlet during normal conditions and divert flow through the relief port in overpressure conditions. Often used with feed pumps for fertilizers and bleach, they have a PVC body and a PTFE seal for excellent chemical resistance. The relief port begins opening at the set pressure and fully opens at about 10% over the set pressure. It begins closing as pressure drops and fully closes when the system pressure is restored below the set pressure, resuming inline flow from the inlet to the outlet. Adjust the set pressure within the range.
    NPT Female Inlet, Outlet and Relief Port
    Image of Product. Front orientation. Contains Annotated. Pressure-Relief Valves. Adjustable Inline Pressure-Relief Valves for Chemicals.
    Inlet
    Outlet
    Relief
    Set Pressure
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Pipe
    Size
    Location
    Port Pipe
    Size
    Port
    Location
    Range,
    psi
    Adjustment Method
    Shape
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    For Use With
    Temp. Range,
    ° F
    Valve
    Type
    Each
     
    Dark Gray PVC Body—PTFE Seal
    1/4
    		Side3501/4
    		Side1/4
    		Bottom10 to 150External Adjustment ScrewTee3 17/32"Potassium Sulfate, Sodium Hypochlorite (Bleach)0 to 140Relief46315K240000000
    1/2
    		Side3501/2
    		Side1/2
    		Bottom10 to 250External Adjustment ScrewTee5 9/16"Potassium Sulfate, Sodium Hypochlorite (Bleach)0 to 140Relief46315K25000000
    1
    		Side3501
    		Side1
    		Bottom10 to 250External Adjustment ScrewTee5 7/8"Potassium Sulfate, Sodium Hypochlorite (Bleach)0 to 140Relief46315K27000000
     
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