Products Manufactured by EBAA Iron, Inc. are Made in U.S.A., Download, Press Release Download, Press Release Restraint Length Calculator v7, Download. Mechanical Joint Drawing, Download, Pipe Outside Diameter Chart, Download. Mechanical Joint Install and Dimensions Guide, Download, Pipe Outside Diameter Restraint Length Calculator; Price List Booklet; Compliances; Submittal. EBAA Iron, Inc. is the leader in pipe joint restraint and flexible expansion joints for water and wastewater FLEX-TEND Force Balanced CAD File, Download.
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EBAA Iron has released version of its popular and easy-to-use there is no longer any need to download and install third-party software or. I am working with an agency that uses restrained joints in lieu of thrust the lenght required, free download or web based at cheap-diet-pills-online.info Using the EBAA Iron Joint Restraint Calculator Join us for a Webinar on Price List book is available for download below and is effective for.
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. Vertical offsets require restraint of all joints within the calculated lengths L on both sides of the upper and lower fittings. When restrained lengths overlap on the diagonal pipe, all joints between the fittings should be restrained. Tee fittings require the restraint of all joints within a calculated length along the branch pipe. The restraint design also requires the selection of a length of pipe along the run Lr to be free of joints.
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EBAA Iron, Inc. Releases v7.0 Of Its Popular Restraint Length Calculator Program
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Related Articles. I am working with an agency that uses restrained joints in lieu of thrust blocks. The provide minumum lengths, but I would like to see how to calculate these lengths. Does anyone have a link where this calculation is explained? I am working with PVC pipe if it makes a difference.
PVC does make a diffence EBAA has a program that uses the parameters to calculate the lenght required, free download or web based at www. Locate the files extracted on your local drive using Windows Explorer. Double-click on setup. Click ok, then click on the computer icon and click on ok.
All the fields are required. Required Enter valid email. Georgia and S. Helena St. In a restrained joint system, the force at the tee is balanced by the soil in two areas. The first is the area of the pipe that is behind the tee. This is the area in which a thrust block would normally be poured. The restrained length of pipe Lr, along the run of the tee and on each side of the tee, encounters passive bearing resistance from the soil that acts perpendicularly to the tee.
The restrained length along the branch of the tee connection, Lb, provides frictional resistance that involves the entire circumference of the branch piping.
The minimum attached length of pipe Lr to extend in each direction along the run of the tee is a user specified quantity and this program is used to calculate the restrained length along the branch Lb. The length of pipe Lr must be of solid pipe without joints, fittings, etc. Consideration in specifying this length must be given not only to the job layout, but also to the practicalities of installation. Horizontal Bends Resultant Thrust: Vertical Offsets Vertical offsets require restraint of all joints within the calculated lengths L on both sides of the upper and lower fittings.
Upper Bend Resultant Thrust: Tees Tee fittings require the restraint of all joints within a calculated length along the branch pipe. Resultant Thrust: Reducers Reducers require restraint of all joints within the calculated length L extending from the fitting on the side of the larger pipe.
Dead Ends Dead ends require restraint of all joints within the calculated length L extending from the cap. Fire Hyrdant Lateral Fire hydrants are typically installed by restraining all of the joints from the main to the mechanical joint shoe at the hydrant. When all of the joints are restrained, Force B balances Force A. Mechanical Joint Sleeves Mechanical joint sleeves and fabricated repair couplings require restraint when they are within the calculated restrained length of other fittings.
In Line Valves The restraint of valves requires careful consideration in a redundant distribution network. Thrust Collar Anchor Dead ends require restraint of all joints within the calculated length L extending from the cap. If encased in concrete, poly-wrap must be used. Definition of Terms Below is a list of the variables used in the equations for calculating restrained lengths.
A Cross sectional area of the pipe [sq. References Potyondy, J. Changed layout of the printable Project PDF documents for a better legibility.
Corrected a few type mistakes in the printable Project PDF documents 7. I want to prevent in line thrust from being transmitted into a vault structure.
Length of Restrained Pipe Calculation - Water treatment & distribution - Eng-Tips
How do I do that? Why do you ignore soil bearing resistance for dead ends? Does the calculator provide an analysis for a rotated bend i. Should all in-line valves be calculated as dead end? I have several fittings in a congested area where the restraint lengths overlap one another. How do I design for that? What if you had a dead end on one side of the run of a tee? For a tee calculation, can Lr be more than one length of pipe if it is restrained?
For the tee analysis, how does the calculator accommodate a valve on the tee run? How do you design for a valve at the run of a tee? Does this program calculate alternative bend angles? How do I design for a live tap? What about water hammer? Do I need to calculate restraint lengths for each fitting in a large water main contract? If not, what general recommendation would you include in the contract specs?
Is there a specific app available in the Apple App Store or Google Play for this restraint calculator? Is there a way to have user input soil data? Is there any way to use the calculator without internet access? Can I save my work inside the calculator? What are the cost savings of using a restrained system versus concrete thrust block? Is there anything to gain by installing both thrust blocking and thrust restraint?
When the calculated value indicates a restraint length requirement of 16 feet on each side of a bend, does that mean that each of the pipe joints 20 feet away needs to be restrained in addition to those at the fitting? I need to test a portion of my piping with the joints exposed. Why is the thrust force due to velocity not factored into the analysis?
No, but the program can be accessed from any device that can access the internet. When the calculation result is shown, is the "Thrust" value the same as that used to design thrust blocks? The resultant thrust forces are the same.
What if only the fitting is wrapped with polyethylene and not the length of the pipe? Would the frictional resistance rely on the pipe material or the fitting?
Does pipe placement below the groundwater table affect the restraint length calculation? Is the soil type specified as the backfill material or native soil outside the trench?
Many of our clients do not allow passive soil resistance to be considered when determining restrained length. Can you remove this value in the calculations? What if I have a variety of soil types across a project? Project Name Notes.
Site Name Notes. Item 1 of 1. Fill ML, Gran.
Fill CH, Gran. Fill MH, Gran. Safety Factor 1. Trench Type 3 4 5. Depth of Bury ft. Test Pressure 30 40 50 60 70 80 Bend Angle 90 45 Bend Angle 45 Low Side Depth ft.
Project Notes Save Notes Cancel. Site Notes Save Notes Cancel.