Resources › Pipe Restraint Calculator
Pipe Restraint Calculator.
For engineers and contractors sizing restrained joints on ductile iron and PVC pipe. Pick the fitting, enter the job conditions, get the length.
- Ductile iron, polywrap ductile iron and PVC pipe
- 3 through 54 in. pipe, 50 to 350 psi test pressure
- Save each fitting, print one report
Projects stay in this browser. Use Save file to keep a copy or move it to another computer.
Inputs
Restrained length
Lengths are calculated with the DIPRA thrust restraint design method used in SIGMA's original Restraint Length Calculator. They apply to fittings whose restrained lengths do not overlap those of other fittings. Where they overlap, the designer evaluates the combination as a whole.
A qualified engineer should review every result before it is used in design.
Saved to this project
- DIPRA, "Thrust Restraint Design for Ductile Iron Pipe," Second Edition, 1986.
- Potyondy, J.G., "Skin Friction Between Various Soils and Construction Materials."
- ASTM D 2487, "Classification of Soils for Engineering Purposes."
- Uni-Bell PVC Pipe Association, "Handbook of PVC Pipe, Design and Construction," Dallas, Texas.
- Lambe, T. William, and Whitman, Robert V., "Soil Mechanics," Series in Soil Engineering, Massachusetts Institute of Technology.
Have the spec in hand?
Your regional team can match it to the right model and size.