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Technician in an orange hard hat inspecting valves at a fluid processing plant

Engineered For The Demands of Fluid Processing

Our interleaving two-piece design combines strength and simplicity to expedite repairs and maximize your uptime with confidence.

1955Established
Made in the USA

Trusted by Fluid Processing Industries Nationwide.

The Marzolf Company manufactures and supplies American-made interlocking split flanges for fluid processing facilities across North America. Our innovative two-piece designs eliminate the need to cut and re-weld piping, helping teams expedite repairs, streamline new installations, simplify maintenance, and complete repairs with less downtime and risk.

Blue process tanks with bolted flanges and yellow piping in a pulp and paper plant

Pulp and Paper

Especially advantageous when used on PTFE-lined and FRP piping systems. Eliminate the need to cut and re-weld lined pipe, titanium, stainless steel, or PVC/CPVC pipe. Maximize uptime on chemical pulping, chemical recovery lines, and more.

Municipal wastewater force main with HDPE split flanges

Municipalities & Wastewater

Two-Piece backing rings for municipal and industrial wastewater, sewage lines, and drainage. Includes large diameter rings for HDPE and FRP piping.

Red fire protection water header with alarm valves, gauges, and zone risers

Oil, Gas & Fire Suppression

FM Approved for use on HDPE fire water loops and mains. Our FM Approved split flanges are certified for use on HDPE fire suppression systems. Interlocking split flanges designed to maximize uptime and expedite cleaning and maintenance.


Engineering a Better Way Forward

Innovation

Innovation Is Our Legacy

From its original patented design in 1955 to today's precision-engineered solutions, MARZOLF® continues a tradition of American innovation that makes industrial piping safer, simpler, and more efficient.

The original interlocking split flange, patented by our founder, has been battle tested, time tested, refined, and built upon a legacy of improvement.

2-Piece

Unique Interlocking Design

No Welding

Simpler, Safer Installation

3

Generations of American Ingenuity

Rapid Response

Engineering responsiveness, domestic manufacturing, and speed, especially for emergency and shutdown work.

Shutdown Support

Limited outage window? We help you pre-identify flange requirements and have replacement components ready before shutdown.

Product Availability

Engineered for fast installation, reducing labor requirements while accelerating repairs and restoring production schedules sooner.

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.

Call Now(715) 426-5705