I-Rod Clip™ (for Grinnell Clamps) – InnoCorr Offshore

Get In Touch

Prevent crevice corrosion at pipe supports

I-Rod Clip™ (for Grinnell Clamps)

The I-Rod Clip attaches to new or existing saddle-clamp-style supports, eliminating crevice corrosion.

The I-Rod Clip (also called I-Clip) is an individual pipe support installed on the inside diameter of a pipe saddle. The clips are mechanically held in place by the weight of the pipe and an adhesive strip, and can be retrofitted easily on existing pipe runs. New Grinnell and cradle-style supports are easily fitted with I-Rod Clips, and many pipe-support manufacturers have begun to offer them pre-installed in each new support.

Correcting a very old problem – Neoprene pads and other rubber interfaces traditionally used in these applications have proven disastrous by actually promoting the crevice corrosion they were designed to prevent. Pipe-support designers originally believed that metal-to-metal contact was the source of most pipe-support corrosion, but this is not true. The problem is the crevice, which traps water and holds it in contact with the pipe. Pads made of rubber or fiberglass are easily penetrated, and once water is inside, the moisture is held tight against the pipe by the pad. I-Rod Clip eliminates the crevice, so water simply evaporates. It also eliminates metal-to-metal contact, which accelerates corrosion when wet.

Made from the right material – The clips are offered in a variety of materials to match the requirements of different applicatiosn. Standard I-Rod clips are made from I-Rod thermoplastic, the same high-impact material found on all I-Rod brand pipe supports. For extreme temperatures, we offer I-Rod HT material and for large weight loads there are several grades of PEEK. Applications include pipe-cradle retrofits, large-diameter band clamps, high-load riser clamps and concrete or timber pier supports.

Prevent crevice corrosion at pipe supports

Key Design Points

Half-round Shape

The half-round shape minimizes contact between the pipe and the support, eliminating the crevice. Keeping water out prevents corrosion from forming.


I-Rod Clip also provides an electrically-isolated stand-off between the pipe and the supporting beam or saddle clamp. This allows for easy maintenance and inspection while preventing galvanic corrosion between dissimilar metals (the pipe and support).


The I-Rod Clip has excellent compressive strength and a very low friction coefficient, ensuring reliable service for the life of the pipe.