Ward Manufacturing Logo

Call  1·800·248·1027

Ward Manufacturing Logo

Call  1·800·248·1027


    Pipe Fittings

    Product Line    |    Technical Resources    |   FAQs

    Extra strong, expertly cast iron is at the heart of Ward Fittings quality.

    From laboratory to foundry, raw materials undergo strict metallurgical and processing controls, chemical analysis and inspection to produce closely grained, high-tensile, non-porous iron.


    Generations of expertise and rigorous quality control results in durable yet precise cast and malleable iron fittings and components that meet or exceed national and industry standards – and the needs of contractors in North America who believe that down to the last detail, quality counts.

    Browse Our Pipe Fittings Product Line
    Picture of various pipe fittings

    Top quality malleable and cast iron is our starting point.


    Continuing to set the highest standards in fine construction across North America is our end game.

    Product Features

    • Wide range of products for sprinkler systems, drainage systems other installations, including fittings, connectors, unions, plugs & bushings, and more
    • Accurate form, length and straightness on threads for easy engagement
    • Chamfered openings for fast, easy engagement and assembly
    • Precision machining
    • Rust-resistant coating

    Technical Resources

    Pipe Fittings FAQs

    • How are Ward’s reducing flanges sized?

      Reducing flanges are sized according to the NPS of the flange and the O.D. of the fitting it attaches to. 

    • What is the difference between malleable and cast iron?

      The chemistry makeup of malleable iron is predominantly iron with carbon and silica as major additives. The applicable material specification is ASTM A197, Cupola Malleable Iron with a tensile strength of 40,000 psi, yield strength of 30,000 psi, and 5% elongation. Malleable is more appropriately used in gas distribution systems. Requires annealing.


      The material specification for cast (gray) iron is ASTM A126. A typical chemistry is predominantly iron with carbon and silicon as major additives, both higher in percentage than in malleable iron. The higher carbon content is what makes cast iron more brittle. It has a tensile strength of 21,000 psi and there is no appreciable elongation. Cast iron fittings are typically utilized in sprikler and drainage systems. 


    • What is the difference between iron seat unions and brass seat unions?

      Often a Brass-to-Iron union works well in many situations. As the iron fitting is attached, the softer brass insert conforms tightly to the iron, making a strong union. However, in many instances brass seated unions cannot be satisfactorily used on lines where the liquid to be carried has an injurious effect on the brass insert. That is where Iron Seat Unions can be used. Pressure ratings and dimensions remain the same for both. 


    • How can I tell the difference between a class 150 fitting and class 300 fitting?

      Malleable 150 class fittings do not have marking requirements to show that they are 150 class. It is assumed that if unmarked that they are the lowest class. Malleable 300 class fittings are required to be marked as 300 MI and typically have the AAR marking on them. Malleable 300 class fittings are dimensionally different than 150 class fittings.

    • Are Ward fittings registered with other agencies?

      Yes. Applicable agency registrations include FM (Factory Mutual), UL/C (Underwriters Laboratories/Canada), and have Canadian Registration numbers for use in and up to nuclear applications in Canada. Ward also has NSF certification and applicable fittings can be found on the NSF website

    • How are tees properly identified?

      The convention for numbering in the U.S. is run x run x outlet. When both runs are the same, the run diameter is only detailed once. For example, a black malleable tee that has both runs at 1 inch and an outlet at ¾ inch would be called a 1 inch x ¾ inch black malleable tee.


      When all openings are different, the tee is identified using the largest diameter run first, the 2nd run second and the outlet third. For example, if we had a malleable tee with a 1” run, a ¾” run, and a ½” outlet, it would be called a 1” x ¾” x ½” malleable tee.

    • What are the maximum pressure ratings for Ward fittings?

      For working pressure ratings on cast iron class 125 and class 250 pipe fittings, reference our cast iron threaded fittings spec sheet. For working pressure ratings on malleable iron class 150 and class 300 pipe fittings, reference our malleable iron threaded fittings spec sheet.


    Share by: