McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    Help me decide (beta)
    39 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.

    Fitting Type

    Fitting Type

    Performance

    Rubber Drain Pipe Plugs

    Seal unthreaded pipe ends. A band clamps over the outside of your pipe to secure these plugs. They’re made of rubber that withstands stretching and compression from frequent maintenance or long-term installations.
    Plugs
    Image of Product. Plugs. Front orientation. Pipe and Fittings. Rubber Drain Pipe Plugs, Plugs, Clamp-On Female.

    Plugs

    For Pipe
    Size
    For Pipe OD
    Max. Water Back
    Pressure, ft. of head
    Max. Air Back
    Pressure
    Material
    Each
    Clamp-On Female
    1 1/2
    		1.78" to 1.90"10Not RatedNeoprene2394K1100000
    2
    		2.25" to 2.38"10Not RatedNeoprene2394K120000
    3
    		3.34" to 3.50"10Not RatedNeoprene2394K130000
    4
    		4.31" to 4.50"10Not RatedNeoprene2394K1400000
    5
    		5.30" to 5.62"10Not RatedNeoprene2394K1500000
    6
    		6.30" to 6.62"10Not RatedNeoprene2394K1600000
    8
    		8.38" to 8.62"10Not RatedNeoprene2394K1700000
    10
    		10.20" to 10.80"10Not RatedNeoprene2394K1900000
    12
    		12.20" to 12.80"10Not RatedNeoprene2394K22000000
     
    Plugs with Ventilation Hole
    Image of Product. Plugs with Ventilation Hole. Top orientation. Pipe and Fittings. Rubber Drain Pipe Plugs, Plugs with Ventilation Hole, Clamp-On Female.

    Plugs with Ventilation

    Hole

    Plugs with a ventilation hole have a chamber with a ball that seals the plug when your pipe system is filled and purges air when it’s not.
    For Pipe
    Size
    For Pipe OD
    Max. Water
    Back Pressure
    Max. Air Back
    Pressure
    Temp. Range,
    ° F
    Material
    Each
    Clamp-On Female
    3
    		3.28" to 3.72"Not RatedNot Rated-40 to 180Neoprene2394K102000000
    4
    		4.26" to 4.74"Not RatedNot Rated-40 to 180Neoprene2394K10300000
     
    Plugs with Faucet
    Image of Product. Plugs with Faucet. Front orientation. Pipe and Fittings. Rubber Drain Pipe Plugs, Plugs with Faucet, Clamp-On Female.

    Plugs with Faucet

    Plugs with a faucet let you easily direct flow and drainage in your system.
    For Pipe
    Size
    For Pipe OD
    Max. Water
    Back Pressure
    Max. Air Back
    Pressure
    Temp. Range,
    ° F
    Material
    Each
    Clamp-On Female
    1 1/2
    		1.84" to 1.96"Not RatedNot Rated-40 to 180Neoprene2394K104000000
    2
    		2.26" to 2.44"Not RatedNot Rated-40 to 180Neoprene2394K10500000
    3
    		3.26" to 3.52"Not RatedNot Rated-40 to 180Neoprene2394K10600000
    4
    		4.33" to 4.55"Not RatedNot Rated-40 to 180Neoprene2394K10700000
    5
    		5.25" to 5.61"Not RatedNot Rated-40 to 180Neoprene2394K10800000
    6
    		6.25" to 6.68"Not RatedNot Rated-40 to 180Neoprene2394K10900000
     

    Drain, Waste, and Vent PVC Clamp-On Pipe Fittings for Water

    To make installing and maintaining systems easy, these connectors come with clamps that form a strong seal on pipe and fittings once tightened.
    Warning: Never use plastic pipe fittings, flanges, and pipe with compressed air or gas.
    Caps
    Image of Product. Front orientation. Pipe and Fittings. Drain, Waste, and Vent PVC Clamp-On Pipe Fittings for Water, Caps, Clamp-On Pipe End.

    Clamp-On Pipe End

    For Pipe
    Size
    For Pipe
    OD
    Material
    Max. Pressure
    @ Temp.
    Clamp Material
    Each
    Clamp-On Pipe End
    1 1/2
    		1 7/8"PVC4 psi @ 72° F300 Series Stainless Steel4511K4100000
    2
    		2 3/8"PVC4 psi @ 72° F300 Series Stainless Steel4511K420000
    3
    		3 1/2"PVC4 psi @ 72° F300 Series Stainless Steel4511K430000
    4
    		4 1/2"PVC4 psi @ 72° F300 Series Stainless Steel4511K440000
    5
    		5 5/8"PVC4 psi @ 72° F300 Series Stainless Steel4511K11100000
    6
    		6 5/8"PVC4 psi @ 72° F300 Series Stainless Steel4511K11200000
    8
    		8 5/8"PVC4 psi @ 72° F300 Series Stainless Steel4511K11300000
    10
    		10 3/4"PVC4 psi @ 72° F300 Series Stainless Steel4511K11400000
    12
    		12 3/4"PVC4 psi @ 72° F300 Series Stainless Steel4511K115000000
     

    FM-Approved Medium-Pressure Iron and Steel Grooved-End Pipe Fittings

    Connect fire water mains, sprinkler systems, and other fire-protection pipelines. FM approved, these fittings meet safety standards for reducing the risk of fire. Their grooved ends clamp to pipe—no heat or threading required—so you can quickly access your line. They’re also known as Victaulic fittings. Made of iron, fittings perform best in noncorrosive environments.
    Caps
    Image of Product. Front orientation. Pipe and Fittings. FM-Approved Medium-Pressure Iron and Steel Grooved-End Pipe Fittings, Caps, Grooved-End Clamp-On Male.

    Grooved-End

    Clamp-On Male

    Pipe
    Size
    Color
    Max. Pressure
    @ Temp.
    Certification
    Each
    Grooved-End Clamp-On Male
    2
    		Orange750 psi @ 72° FFM Approved, UL Listed
    		5723T17000000
    2 1/2
    		Orange750 psi @ 72° FFM Approved, UL Listed
    		5723T44400000
    3
    		Orange750 psi @ 72° FFM Approved, UL Listed
    		5723T1800000
    4
    		Orange750 psi @ 72° FFM Approved, UL Listed
    		5723T1900000
    6
    		Orange750 psi @ 72° FFM Approved, UL Listed
    		5723T445000000
     

    Flame-Retardant Drain, Waste, and Vent Polypropylene Pipe Fittings for Chemicals

    Made of polypropylene, these gravity-flow fittings withstand organic solvents, such as acetone, that would dissolve CPVC pipe. They also stand up to alkalies and highly corrosive acids, such as hydrochloric acid. Fittings meet UL and ASTM standards for flame retardance and self-extinguishment in the case of fire. They’re compatible with Orion Blueline No-Hub and Orion Rionfuse chemical waste pipe and pipe fittings.
    Either a clamp connector or electrofusion connector is required to connect grooved ends on adapters to pipe or to another fitting with a grooved end. Clamp connectors can be easily taken apart for maintenance. You’ll need a grooving tool to prepare ungrooved ends for clamping. Electrofusion connectors create a stronger, more permanent connection than clamp connectors. Weld these fittings in place using an electrofusion tool.
    Warning: Never use plastic pipe fittings, flanges, and pipe with compressed air or gas.
    External-Square-Drive Plugs/Straight Adapters
    Image of Product. Electrofusion Socket/Grooved-End Clamp-On Male. Bottom orientation. Pipe and Fittings. Flame-Retardant Drain, Waste, and Vent Polypropylene Pipe Fittings for Chemicals, External-Square-Drive Plugs/Straight Adapters, Electrofusion Socket/Grooved-End Clamp-On Male, Hex Body.

    Electrofusion

    Socket/Grooved-End

    Clamp-On Male

    Adapters with a threaded pipe end connect and disconnect easily on that side, no clamp or welding required. Thread sealant tape (sold separately) prevents leaks in threaded connections. To prevent overtightening that could cause cracks and leaks, first finger-tighten fittings, then turn once or twice with a wrench.
    Pipe
    Size
    Body
    Shape
    Material
    Color
    Max. Pressure
    @ Temp.
    Flammability Rating
    Each
    Electrofusion Socket/Grooved-End Clamp-On Male
    1 1/2
    		HexPolypropyleneBlueNot RatedASTM D635, UL 94 V-25389N202000000
    2
    		HexPolypropyleneBlueNot RatedASTM D635, UL 94 V-25389N20300000
    3
    		HexPolypropyleneBlueNot RatedASTM D635, UL 94 V-25389N205000000
    4
    		HexPolypropyleneBlueNot RatedASTM D635, UL 94 V-25389N206000000
     
    270° Bend Connectors
    Image of Product. Bottom orientation. Pipe Traps. Flame-Retardant Drain, Waste, and Vent Polypropylene Pipe Fittings for Chemicals, 270° Bend.

    270° Bend

    270° Bend Connectors—270° bend fittings are also known as P-traps.
    Pipe
    Size
    Material
    Color
    Max. Pressure
    @ Temp.
    Flammability Rating
    Fitting
    Type
    Each
    Electrofusion Socket/Grooved-End Clamp-On Male
    1 1/2
    		PolypropyleneBlueNot RatedASTM D635, UL 94 V-2270° Bend5389N1020000000
    2
    		PolypropyleneBlueNot RatedASTM D635, UL 94 V-2270° Bend5389N103000000
     
    Union 270° Bend Connectors
    Image of Product. Bottom orientation. Pipe Traps. Flame-Retardant Drain, Waste, and Vent Polypropylene Pipe Fittings for Chemicals, Union 270° Bend.

    Union 270° Bend

    Union 270° Bend Connectors—270° bend fittings are also known as P-traps. They separate into three pieces, so you can access your line.
    Pipe
    Size
    Material
    Color
    Max. Pressure
    @ Temp.
    Flammability Rating
    Fitting Type
    Each
    Electrofusion Socket/Grooved-End Clamp On Male
    1 1/2
    		PolypropyleneBlueNot RatedASTM D635, UL 94 V-2Union 270° Bend5389N3020000000
    2
    		PolypropyleneBlueNot RatedASTM D635, UL 94 V-2Union 270° Bend5389N303000000
     
    back to top