McMaster-Carr logo
    Filter by
    Fitting Type
    Industrial Info Compare
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Maximum Temperature
    Minimum Temperature
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Specifications Met
    Food Industry Standard
    Industrial Info Compare
    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)
    42 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

    Performance

    UV-Resistant Polypropylene Pipe Fittings for Chemicals

    Made of polypropylene, these fittings won’t deteriorate when exposed to the damaging effects of ultraviolet light and are suitable to use outdoors. They have the chemical resistance to withstand a wide variety of acids, solvents, and other harsh substances.
    To prevent leaks in threaded connections, apply a sealant to the male threads. Threaded connections can be taken apart as needed for maintenance and repair. For metal threads, use PTFE tape. For plastic threads, apply a non-hardening, plastic-compatible sealant. Tape or sealants with PTFE are not recommended for plastic-to-plastic connections. When making a threaded connection be careful not to overtighten the threads. To prevent cracks and leaks, finger tighten the fitting, then wrench-tighten one to two turns.
    90° Elbow Adapters
    Image of Product. NPT Female × NPT Male. Front orientation. Pipe and Fittings. UV-Resistant Polypropylene Pipe Fittings for Chemicals, 90° Elbow Adapters, Female, Male, Threaded Fitting Connection.

    NPT Female ×

    NPT Male

    Female x male 90° elbow adapters are also known as street elbows.
    Pipe
    Size
    (A)
    (B)
    Pipe
    Schedule
    Material
    Color
    Max. Pressure
    @ Temp.
    Each
    NPT Female × NPT Male
    1/4
    		1/4
    		80
    		PolypropyleneBlack300 psi @ 72° F46885K5100000
    3/8
    		3/8
    		80
    		PolypropyleneBlack300 psi @ 72° F46885K1210000
    1/2
    		1/2
    		80
    		PolypropyleneBlack300 psi @ 72° F46885K1220000
    3/4
    		3/4
    		80
    		PolypropyleneBlack300 psi @ 72° F46885K1230000
    1
    		1
    		80
    		PolypropyleneBlack300 psi @ 72° F46885K1240000
    1 1/4
    		1 1/4
    		80
    		PolypropyleneBlack300 psi @ 72° F46885K1250000
    1 1/2
    		1 1/2
    		80
    		PolypropyleneBlack300 psi @ 72° F46885K1260000
    2
    		2
    		80
    		PolypropyleneBlack300 psi @ 72° F46885K12700000
    3
    		3
    		80
    		PolypropyleneBlack300 psi @ 72° F46885K12800000
     
    45° Elbow Adapters
    Image of Product. NPT Female × NPT Male. Front orientation. Pipe and Fittings. UV-Resistant Polypropylene Pipe Fittings for Chemicals, 45° Elbow Adapters, Female, Male, Threaded Fitting Connection.

    NPT Female ×

    NPT Male

    Pipe
    Size
    (A)
    (B)
    Pipe
    Schedule
    Material
    Color
    Max. Pressure
    @ Temp.
    Each
    NPT Female × NPT Male
    3/4
    		3/4
    		80
    		PolypropyleneBlack300 psi @ 72° F46885K13300000
    1
    		1
    		80
    		PolypropyleneBlack300 psi @ 72° F46885K1340000
    1 1/4
    		1 1/4
    		80
    		PolypropyleneBlack300 psi @ 72° F46885K13500000
    1 1/2
    		1 1/2
    		80
    		PolypropyleneBlack300 psi @ 72° F46885K13600000
    2
    		2
    		80
    		PolypropyleneBlack225 psi @ 72° F46885K13700000
    3
    		3
    		80
    		PolypropyleneBlack300 psi @ 72° F46885K13800000
     
    Thread Sealant
    Image of Product. Front orientation. Thread Sealants. Applicator-Top Can.

    Applicator-Top Can

    Sealants cannot be sold to Colorado, Connecticut, District of Columbia, Delaware, Illinois, Indiana, Massachusetts, Maryland, Maine, Michigan, New Hampshire, New Jersey, Northern Virginia, New York, Ohio, Pennsylvania, Rhode Island, or Utah due to local VOC (Volatile Organic Compounds) regulations.
    Container
    Size, fl.
    oz.
    Type
    Temp. Range,
    ° F
    Each
    8Applicator-Top Can-100 to 6004586K9000000

    High-Purity Polypropylene Pipe Fittings for Drinking Water

    The inside of these fittings won’t leach contaminants into your line or accumulate particles—they’re polished to an ultra-smooth 12 Ra finish, which also makes them easy to clean. Made of polypropylene, they resist organic solvents, acids, and alkalis better than CPVC fittings. These fittings meet NSF/ANSI 61 for use with drinking water, and they’re FDA compliant for direct contact with food. They also meet ASTM requirements for material and performance, and ISO requirements for dimensions.
    Connect them to pipe with socket fusion welding for a strong, permanent bond. Use a socket fusion tool with a heater bushing (sold separately) that matches your pipe size. To prevent leaks in threaded connections, apply a sealant to the male threads. Threaded connections can be taken apart as needed for maintenance and repair. For metal threads, use PTFE tape. For plastic threads, apply a non-hardening, plastic-compatible sealant. Tape or sealants with PTFE are not recommended for plastic-to-plastic connections. When making a threaded connection be careful not to overtighten the threads. To prevent cracks and leaks, finger tighten the fitting, then wrench-tighten one to two turns.
    Warning: Never use plastic pipe fittings, flanges, and pipe with compressed air or gas.
    45° Elbow Connectors
    Image of Product. Front orientation. Pipe and Fittings. High-Purity Polypropylene Pipe Fittings for Drinking Water, 45° Elbow Connectors, Socket Fusion Weld Female.

    Socket Fusion

    Weld Female

    NSF/ANSI 61—To adhere to safety standards for drinking water systems, use pipe that meets NSF/ANSI 61.
    Pipe
    Size
    Material
    Color
    Max. Pressure
    @ Temp.
    Food Industry Std.
    Each
    Socket Fusion Weld Female
    1/2
    		PolypropyleneLight Gray150 psi @ 72° FFDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 178.3297, NSF/ANSI 615381N016000000
    3/4
    		PolypropyleneLight Gray150 psi @ 72° FFDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 178.3297, NSF/ANSI 615381N01700000
    1
    		PolypropyleneLight Gray150 psi @ 72° FFDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 178.3297, NSF/ANSI 615381N01800000
    1 1/2
    		PolypropyleneLight Gray150 psi @ 72° FFDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 178.3297, NSF/ANSI 615381N01900000
    2
    		PolypropyleneLight Gray150 psi @ 72° FFDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 178.3297, NSF/ANSI 615381N02100000
     
    Stub-End Straight Adapters
    Image of Product. Straight Adapter. Front orientation. Pipe Stub Ends. High-Purity Polypropylene Pipe Fittings for Drinking Water.

    Straight

    Adapter

    Stub-end straight adapters are used with flanges. Slide a flange onto the stub end and weld the stub end to pipe (not the flange). Since the flange isn’t welded to the pipe, it can be disconnected easily, which creates an access point for frequent cleaning and inspecting.
    Pipe
    Size
    Wall
    Thk.
    Flange
    OD
    Finished
    Material
    Each
    1/2
    		0.119"1 47/64"Polypropylene5381N085000000
    3/4
    		0.138"2 1/8"Polypropylene5381N08600000
    1
    		0.138"2 31/64"Polypropylene5381N08700000
    1 1/2
    		0.195"3 15/64"Polypropylene5381N08800000
    2
    		0.178"3 31/32"Polypropylene5381N08900000
    Straight Ball Valves
    Image of Product. Front orientation. Manual On/Off Valves. High Purity.
    Add a ball valve to control the flow in your line.
    EPDM Seal
    Viton®
    Fluoroelastomer Seal
    Pipe
    Size
    Flow Coefficient
    (Cv)
    Vacuum Rating,
    in. Hg
    Port
    Type
    End-to-End
    Lg.
    Body
    Material
    Color
    Max. Pressure
    @ Temp.
    Food Industry Std.
    Each
    Each
    1/2
    		12.529.92Full3 13/16"Polypropylene
    		Light Gray150 psi @ 0° FFDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 178.3297, NSF/ANSI 615381N07400000005381N0790000000
    3/4
    		2829.92Full4 9/32"Polypropylene
    		Light Gray150 psi @ 0° FFDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 178.3297, NSF/ANSI 615381N0750000005381N081000000
    1
    		50.929.92Full4 23/32"Polypropylene
    		Light Gray150 psi @ 0° FFDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 178.3297, NSF/ANSI 615381N0760000005381N082000000
    1 1/2
    		15029.92Full6 1/16"Polypropylene
    		Light Gray150 psi @ 0° FFDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 178.3297, NSF/ANSI 615381N0770000005381N083000000
    2
    		23029.92Full6 13/16"Polypropylene
    		Light Gray150 psi @ 0° FFDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 178.3297, NSF/ANSI 615381N0780000005381N084000000
    Socket Fusion Welders
    Image of Product. Front orientation. Socket Fusion Welders.
    Each
    Welder5381N0670000000
    Socket Fusion Heater Bushings
    Image of Product. Front orientation. Socket Fusion Heater Bushings.
    For Pipe
    Size
    Each
    1/2
    		5381N0680000000
    3/4
    		5381N069000000
    1
    		5381N071000000
    1 1/2
    		5381N072000000
    2
    		5381N073000000
    back to top