Simple answer is NO. The pipe wear will be to high. ■

Dear Rajendra,

Do not forget the mechanical strength against dynamic forces on the pipeline ■

Dear Rajendra,

You can use HDPE pipe provided you can keep it from flexing and thus not remaining horizontal or vertical. You will need pipe supports every 10 feet as a minimum. I am assuming that you can accept some contamination of cement due to wear of the pipeline. Your main concern will be erosive wear of the bends if you are using long radius bends. This problem could be solved by using "pocket-tees". Also make sure that the pressure rating of the pipe is at least 10% higher than the maximum pressure of the conveying blower/compressor. Also, design the pipeline joints properly.

I hope that the above comments will help you in making a decision.

Regards,

Amrit T. Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

Email: polypcc@aol.com

Ph and Fax: 304 346 5125 ■

Rajendra,

Please also consider heating of the conveying air. I think you will find that the properties of the pipe material will be adversely affected.

Michael Reid. ■

Suppliers of PE pipe say that it should not be used above 60 deg. C for certain applications. Temperature restrictions also apply to PP pipe. Talk to the pipe manufacturer about the matter.

Michael Reid. ■