What is a Megalug fitting?
The Series 1100 MEGALUG® Mechanical Joint Restraints effectively and economically restrain Ductile Iron Pipe (DIP) to mechanical joints above or below ground, for practically any application including valves, hydrants, and pipe.
What is a restrained mechanical joint?
Field-Welded Restrained Joints Some restrained joints (push-on and mechanical) have a Ductile or alloy steel retainer ring welded around the circumference of the spigot of the pipe to provide a means of restraint.
What is 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.
What does it mean to be restrained?
1 : to keep from doing something I wanted to speak, but restrained myself. 2 : to keep back : curb He couldn’t restrain his laughter. restrain. transitive verb. re·strain | \ ri-ˈstrān \
What is AWWA C111?
AWWA C111/A21. 11-17 Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings.
How is restrained joint length calculated?
Horizontal bends require restraint of all joints within the calculated length (L) on both sides of the fitting. In many cases, careful planning during installation can reduce the number of joints within the restrained length….Horizontal Bends.
|Restraint Length: L =||Sf • P • A • Tan(θ/2)|
|Fs + ½Rs|
What is used to join cast iron pipes?
The method of jointing cast iron soil pipes depends upon the purpose for which the pipe is to be used. The usual jointing materials are: lead, cement and sand, ‘Philplug’, red lead putty or rust cement; each material being well caulked into the socket of the pipe.
Which joint is used to connect cast iron pipes to be embedded in ground?
Bell-and-Spigot Joint This joint for underground cast-iron pipe was developed as long ago as 1785.
What’s the difference between restrain and restraint?
As you may have guessed from its similar spelling, the word restraint comes from the verb restrain, which in turn comes from the Latin word restringere, meaning “draw back tightly, confine, check.” When talking about an object, a restraint is a device used to maintain control of something.
What is restrained approach?
Someone who is restrained is very calm and unemotional. Under the circumstances, he felt he’d been very restrained. Synonyms: controlled, reasonable, moderate, self-controlled More Synonyms of restrained. adjective.
How do you calculate restraining force?
That movement can be calculated from the expression M = NTL/2AE, where M is the rail end movement in inches, T is the restraining force per tie per rail in pounds, L is the length in inches for the six rail lengths to secure full restraint (L = Ns, where N is the number of ties and s is the tie spacing in inches), A is …
How do pipe restraints work?
The hydrostatic forces created at the joints on both ends of the fitting combine to form a single reaction. This reaction is the resultant thrust force, T. This resultant force is the force attempting to move the fitting away from the bend and its attached piping. This is the force to be restrained.
What is the difference between AWWA 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 are the types of ductile iron pipe coupling?
Ductile iron reducing pipe coupling with interchangeable gaskets and color-coded end rings. Ductile iron pipe end cap coupling with interchangeable gaskets and color-coded end rings. Ductile iron insulating coupling with insulating boot.
What type of pipe coupling prevents electrolytic action?
Insulating boot prevents electrolytic action by isolating one pipe from another. Extended range pipe coupling. Wide range, two-bolt pipe coupling with built-in restraint. Wide-range ductile iron restrained end cap. Fabricated steel pipe coupling for pipe sizes 12 inch and larger.
What type of pipe coupling is used in ic501?
The IC501’s insulating boot stops electrolytic action by isolating one pipe from the other. Extended range ductile iron coupling. Two-bolt wide range ductile iron coupling. Wide range, two-bolt coupling with built-in pipe restraint. Restraint coupling. Fabricated steel pipe coupling for pipe sizes 12 inch and larger.
Can you connect iron pipe to grey cast pipe?
Since iron pipe was one of the earliest pipe materials to be used in modern water works and wastewater systems, most early fittings and couplings were designed to be used on Grey Cast and then Ductile iron pipe. So, connecting “other” piping material to DI pipe is very straightforward on the Ductile side of the fitting.