March Pump
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About March Manufacturing Inc.
Since its founding in 1954, March Manufacturing Inc. has built a reputation as a pioneering American manufacturer of centrifugal sealless magnetic drive pumps. Headquartered in Glenview, Illinois, the company engineers, machines, and assembles every pump under one roof — a commitment to domestic manufacturing that translates directly into product quality and responsive customer support.
What sets March Pump apart is its core technology: the magnetic drive design. Rather than relying on a traditional shaft seal to contain fluid, these pumps use a magnetic coupling to transfer rotational force from the motor to the impeller — meaning the motor shaft never penetrates the pump casing. The result is a fundamentally leak-free design that eliminates the maintenance costs, downtime, and hazards associated with mechanical shaft seals. The only moving part in contact with the fluid is the impeller itself, making March pumps exceptionally durable and reliable across demanding environments.
March's catalog spans an impressive range of flow rates and configurations. Pump output ranges from fractional GPM up to 200 GPM, with heads reaching up to 160 feet, and motor options include AC, DC, explosion-proof, and air-driven models. Wetted materials include polypropylene, Kynar, Ryton, bronze, stainless steel, and cast iron, giving engineers the flexibility to match pump construction to virtually any fluid chemistry — from clean water to highly corrosive acids and solvents.
This versatility makes March pumps a go-to choice across a wide spectrum of industries. In marine circulation and air conditioning applications, their sealless submersible and non-submersible models are trusted for seawater and freshwater cooling loops aboard vessels. For pressurized fluid delivery in plumbing and equipment systems, their water pressure system pumps provide consistent, reliable performance. Beyond marine use, March pumps serve chemical processing, medical equipment, solar thermal systems, semiconductor manufacturing, and OEM integration.
All March pumps are proudly designed, machined, and assembled in Glenview, Illinois, backed by a warranty program that underscores the company's confidence in its craftsmanship. For anyone who needs a robust, low-maintenance pumping solution — whether on a boat, in a plant, or as part of a custom-built system — March Manufacturing remains one of the most trusted names in the field.