Since the machines are very similar in construction, it comes down to deciding which machine has the range needed. The D-5 machine accommodates up to 3-3/4" dia. cutters – 2” larger than the E-5 machine. Both are rugged machines rated to 500 psi and can be hand or power operated.

Although you should verify such compatibility with your Mueller Salesperson when ordering the machine, in general the following is true: C1 Series cutters are compatible with CC tools E-5 and E-4 machine tools are compatible. D-5 and D-4 machine tools are compatible. D and E series cutters are interchangeable, but the adapters are not.

Mueller machines and power operators have been designed to be rugged and with reasonable care, provide many years of reliable service. Normal in-service wear and tear can take a toll, however, and we offer a repair/rebuild service for certain machines and tools (see “Repair Services” section of this web site for details) to restore them to “almost new” condition. Still, there are a number of things you can do to troubleshoot, and in some instances, perform simple repairs. For details, click the link below to download information about troubleshooting several models of machines and power operators.

We make our products in our own plants here in the U.S. Line Stoppers and Fittings – Manufacturing in Decatur, Illinois Machines and Tools – Manufacturing in Decatur, Illinois Gas Meter Valves and Bars – Manufacturing in Brownsville, TX Stainless Steel Pipe Repair Products – Manufacturing (including stainless steel fabrication and rubber molding) in Cleveland, Tennessee.

If a search of our online catalog failed to find it, contact our Customer Service Center at 1-800-798-3131 for assistance.

We can help train in several ways. Our web site features an interactive gas distribution system diagram showing where the products we make are used, with pictures and descriptions. Our training school conducts classes several times each year – check our web site at “Product Training” for information. We also have a number of videos on our web site providing in-depth overviews of several products.

We are one of the three major companies that comprise Mueller Water Products, Inc. Mueller Water Products is a leading North American manufacturer and marketer of infrastructure and flow control products for use in water distribution networks and treatment facilities. Its broad product portfolio includes engineered valves, hydrants, ductile iron pipe and pipe fittings, which are utilized by municipalities, as well as the commercial and residential construction, oil and gas, HVAC and fire protection industries. The Company is comprised of three main operating segments: Mueller Co., U.S. Pipe and Anvil. Based in Atlanta, Georgia, the Company employs approximately 6,600 people. Mueller Water Products Series B common stock and Series A common stock trade on the New York Stock Exchange under the ticker symbols MWA.B and MWA, respectively. For more information about Mueller Water Products, please visit the Company’s website

Mueller Co. was founded in Decatur, Illinois in 1857, making it more than 150 years old. Read more about the company’s history.

The die forging process uses great pressure to work the metal that will become the fitting, and it is this “working” process that refines the grain structure in the metal. This results in a fitting with superior tensile strength and pressure holding capability. In forgings, the grain flow is orientated in the direction of the principal stresses that will be encountered when the fitting is subjected to line pressure. It’s this uniformity of the grain that contributes most to the superior strength of the finished fitting, and also makes it less susceptible to corrosion and stress cracking over its lifetime. In contrast, cast metal pieces have isotropic grain structure, meaning the grain has no specific direction at any point within the casting. While this can provide good compression strength, a casting cannot measure up to the tensile strength and resistance to shear loads of a forging. Parts machined from bar or plate stock may have a grain structure that is superior to a cast part, but any machining by definition cuts through the grain structure that would otherwise add tensile strength.