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    14 Products
    About Pipe and Fittings
    industrial info icon

    Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

    FM-Approved Low-Pressure Iron and Steel Threaded Pipe Fittings

    Suitable for use in fire-protection applications, these fittings are cast iron, so they’re brittle enough to be opened with a sledgehammer. They’re also known as Pressure Class 125 fittings. Use in noncorrosive environments.
    Square-Drive Plugs
    Image of Product. NPT Male. Front orientation. Pipe and Fittings. FM-Approved Low-Pressure Iron and Steel Threaded Pipe Fittings, Square-Drive Plugs, Threaded Fitting Connection, Male.

    NPT Male

    Pipe
    Size
    Construction
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Certification
    Each
    NPT Male
    1
    		Solid125
    		Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K105000000
    1 1/4
    		Solid125
    		Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K10600000
    1 1/2
    		Solid125
    		Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K10700000
    2
    		Solid125
    		Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K10800000
    2 1/2
    		Solid125
    		Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K10900000
    3
    		Solid125
    		Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K11100000
    4
    		Solid125
    		Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K112000000
     
    External-Square-Drive Plugs
    Image of Product. NPT Male. Front orientation. Pipe and Fittings. FM-Approved Low-Pressure Iron and Steel Threaded Pipe Fittings, External-Square-Drive Plugs, Threaded Fitting Connection, Male.

    NPT Male

    Pipe
    Size
    Construction
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Certification
    Each
    NPT Male
    1
    		Solid125
    		SquareCast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K11300000
    1 1/4
    		Solid125
    		SquareCast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K1140000
    1 1/2
    		Solid125
    		SquareCast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K1150000
    2
    		Solid125
    		SquareCast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K11600000
    2 1/2
    		Solid125
    		SquareCast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K11700000
    3
    		Solid125
    		SquareCast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K11800000
    4
    		Solid125
    		SquareCast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K11900000
     
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