What is an MJ fitting?

MJ stands for Mechanical Joint. It is a type of compression joint designed for underground connection for pipe, valves and fittings. Mechanical joints allow for some deflection of the joint. An MJ seal is rated for 350 psi for 2″ to 24″ fittings, and to 250 psi for 30″ to 36″ fittings.

Where are Star pipe Products manufactured?

We are the proud owner of a U.S.A. foundry situated in South Coffeyville, Oklahoma.

What is the difference between C110 and C153?

Description: Today, standard compact fittings C153 are commonly used in place of full Body fittings C110. They are designed to be to be more lightweight and more economical to use while providing better flow characteristics.

What is an MJ sleeve?

Ductile Iron Mechanical. Joint Tapping Sleeve. Ductile Iron MJ Tapping Sleeves are lighter and stronger than traditional cast iron sleeves and are used in conjunction with MJ Tapping Valves where a connection to an existing main is required.

What does MJ stand for in plumbing?

The Mechanical Joint (MJ) Coupled Joint offers a method of providing joint restraint with a standard mechanical joint socket of a pipe, fitting, valve or other product.

What is a foster adapter?

Foster Adaptor Highlights Ultra-compact MJ restraint. This simple, light-weight restraint saves critical space, and its bolt-through design means top security with half the bolts to connect. The Foster Adaptor takes the place of two lug-bolt type products.

What is AWWA C115?

AWWA C115-20 Flanged Ductile-Iron Pipe With Ductile-Iron or Gray-Iron Threaded Flanges.

What is AWWA C153?

Back to AWWA C153-11 Ductile-Iron Compact Fittings. This standard describes 3-in. through 64-in. (80-mm through 1,600-mm) ductile-iron compact fittings to be used with ductile-iron pipe or pipe made of other materials with similar outside diameters for conveying potable water, wastewater and reclaimed water.

What are MJ fittings used for?

The standard defines “mechanical joint” as: “a joint in which a positive seal is achieved when a gasket is compressed by means of a mechanical device.” A mechanical-joint (MJ) connection is the most common method used to join PVC pipe to a valve or an iron fitting.

What is a MJ coupling?

The Mechanical Joint (MJ) Coupled Joint offers a method of providing joint restraint with a standard mechanical joint socket of a pipe, fitting, valve or other product. The MJ Coupled Joint is commonly used as a method of joint restraint for mechanical joint all-bell fittings and especially to restrain MJ valves.

What is MJ collar?

Ductile Iron Mechanical Joint (MJ) Collar.