Products and Services -> Coal Piping

Elbows

RPM and Associates repairs and rebuilds both smooth radius and flat back elbows. Our MK chrome carbide overlays can be applied to coal pipe from 3" to 28" in diameter and up to five times the center line radius.

Contact Us today about your coal piping project and let us design a cost effective solution for you that extends the production life of your coal pipe.

Smooth Radius Elbows

The pictures shown below demonstrate the repair and hardfacing process of a typical smooth radius coal pipe elbow from start to finish.

Place your mouse over the smaller image on the left to show the larger image on the right.

WORN ELBOW STRUCTURAL REPAIR OF AN ELBOW AUTOMATIC WELDING OF AN ELBOW 360 DEGREE HARDFACING EXAMPLE ELBOWS READY TO BE SHIPPED DIAGRAM SHOWING HARDFACING LAYER PROFILE FOR A TYPICAL ELBOW

Flat Back Elbows

The pictures below show a sample liner that was manufactured in June of 2007 for installation in a flat back elbow. After 28 months of service, the liner shows minimal wear. Protected by RPM's special MK chrome carbide overlay, this elbow will be in production for a long time.

Place your mouse over the smaller image on the left to show the larger image on the right.

FLAT BACK ELBOW NEW CUSTOM MADE WEAR LINER JUNE 2007 WEAR LINER AFTER 28 MONTHS OF SERVICE OCT. 2009 WEAR LINER AFTER 28 MONTHS OF SERVICE OCT. 2009

About RPM and Associates

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Rapid City, the Black Hills, and South Dakota ... Our Home

The Black Hills are home to roughly 100 mountain goats. Despite their common name, mountain goats are actually members of the antelope family.