Two-Piece Backing Rings to Fit Metallic Piping
Sized to fit either stub ends or angle rings. Class 75, Class 150, pressure rated, Class 300, and Metric.
MARZOLF®
Combines Proven
Performance
And Competitive
Lead Times
Our innovative two-piece designs eliminate cutting and rewelding, helping teams simplify maintenance.
1955Established
Made in the USADesigned for Faster, Safer Repairs And Installation
Marzolf Two-Piece Interlocking split flanges are Van Stone style backing rings comprised of two half rings that slip over piping for ease of installation and interleave for strength and rigidity. For maintenance, Marzolf rings eliminate the need to cut and re-weld pipe when replacing cracked or corroded van stone flanges. For new installations, Marzolf flanges allow you to easily fabricate piping systems without the encumbrance of the backing rings getting in the way.
View Products
Two-Piece Rings Designed for Use on Fiberglass Pipe
Backing Rings: fit behind molded fiberglass flanges to reinforce and prevent cracking.
Stand-Alone Rings: install after hand lay-up or contact molding to simplify fabrication.
Two-Piece Backing Rings for Use on PVC, CPVC, PVDF Piping
Reinforcement Rings: install behind PVC and CPVC Van Stone backing rings to reinforce and prevent them from cracking.
Two-Piece Replacement Rings for Use on PVC, CPVC, PVDF Piping
Replacement Rings: replace cracked PVC/CPVC and PVDF Van Stone flanges without having to cut and replace the whole connection.
Two-Piece Backing Rings to Fit HDPE Flange Adapters
Marzolf Two-Piece backing rings designed for use on HDPE flange adapters. Sized to fit IPS or DIPS.
Compensation Rings
Compensation rings and spacer rings are used when bolting a raised face flange to a flat face flange.
Environmental & Green Manufacturing
Our environmental piping solutions support sustainable operations across industries.
Have a Project or Problem you'd like to discuss?
Contact our team. We're ready to answer your questions, review your requirements, and help you find the right solution.