Geothermal Frequently Asked Questions

Any technical information contained herein is provided for convenience only, without any warranty or guarantee of any kind, either express or implied; furthermore, no party should rely on any such technical information without prior independent verification. "Technical information" includes any technical advice, recommendations, testing, or analysis, including, without limitation, information as it may relate to the selection of a product for a specific use and application.

Design
collapse Does Performance Pipe have a pipe calculation program?
collapse Where do I find the pressure rating for PE pipe?
collapse Is thermal expansion or contraction a concern for HDPE pipelines?
collapse What are the safe maximum and minimum burial depths for HDPE pipe?
collapse Where can I find design manuals for HDPE pipe?
collapse Where can I find a table of dimensions including inside diameter, outside diameter, and wall thickness for PE pipe?
collapse Do I need expansion joints for HDPE pipe?
Engineering Properties
collapse How does PE pipe’s capacity for recurring surge pressures (fatigue) compare to other pipes?
collapse Does PE pipe tuberculate like DI pipe?
collapse Where can I find engineering properties such as the modulus and tensile strength for PE pipes?
collapse How do the hydraulic wear characteristics of PE pipe compare to steel?
collapse How does the impact strength of PE compare with other pipes?
General
collapse What do the terms DR and SDR mean?
collapse Will trenchless installation save money over open cut trenching?
collapse How does using PE pipe save money?
collapse Why is a fusion joint better than a gasket joint?
collapse Is PE pipe a green solution for piping?
collapse What does the acronym HDPE stand for?
Hydraulics
collapse What is the maximum flow velocity for HDPE?
collapse What is the safe peak pressure (surge plus pumping) for HDPE?
collapse How does the Hazen-Williams C factor for HDPE compare with DI pipe?
collapse Does the fusion bead affect flow?
collapse How does surge pressure in HDPE pipe compare with DI or PVC pipe?
Installation
collapse What is the recommended test pressure and test procedure for HDPE pipe?
collapse Where can I find the safe pull strength for HDPE pipe?
collapse How do I stack and store pipe on the job site?
collapse Will a surface scratch hurt my pipe?
collapse Are thrust blocks required with buried HDPE pipe?
collapse Does HDPE pipe require cathodic protection? Can it be installed in “hot” soils that attack metal pipe?
collapse Can I pour concrete safely around HDPE pipe?
collapse Are there hazardous vapors or fumes that come off of HDPE pipe when it is cut?
collapse Can I install HDPE pipe with the same embedment used for PVC and DI pipe?
collapse What is the bending radius of HDPE pipe?
Joining
collapse How many joints can I make in a day?
collapse Can solvent cement or adhesive be used to join HDPE pipe?
collapse Where do I get the equipment to fuse HDPE pipes?
collapse Can I fuse and install HDPE pipe in sub-zero weather?
collapse Where do I find information on fusing HDPE pipe?
collapse Are heat fused pipe joints safe?
Manufacturing
collapse What fittings are available from Performance Pipe?
collapse Why are there two material codes (PE3408/3608 or PE3408/4710) printed on the side of my pipe?
collapse What diameter pipe is available on a coil?
Mechanical
collapse Can I pig HDPE pipe?
collapse How do I repair HDPE pipe if the ditch is full of water?
collapse Can a full body tapping saddle be used with HDPE pipe?
collapse How do I transition from PE pipe to DI valves or pipe?
collapse Can I use a butterfly valve on HDPE pipe?
collapse Can HDPE pipe be threaded?
collapse If HDPE pipe is punctured, how is it repaired?
collapse Can HDPE pipe be hot or cold tapped to install service connections with fittings presently available?
collapse What are some applications where an insert stiffener is required?
collapse What type of equipment is used to insert stiffeners into large diameter HDPE pipe?