Resources for March Pumps
The following documents, catalogs, and videos have been compiled to help you select the appropriate pump and keep it running smoothly. You can find general installation, maintenance and wiring guides as well as documentation on common issues and troubleshooting.
General Installation, Preventive Maintenance, & Troubleshooting Guides
Chemical Resistance Charts
Additional documentation for the following can be found below: product updates and replacement information, product weight and dimensions, motor type guides, and assembly/information sheets for Pump Less Motors. Click each to view and/or download.
General Product Overview
Simple, efficient design
for reliable, trouble-free performance and easy maintenance
- Leak-proof, seal-less magnetic drive
- Friction free operation for reduced power consumption
- Broad range of construction materials for most corrosive solutions
- Easy to service without special tools
- Over 150 stocking sales and service locations worldwide
March specializes in the design and manufacture of precision pumps for a wide range of OEM, chemical, industrial, hydronic and solar applications. Pumps for highly corrosive or mild chemicals, acids or solvents, condensate pumps, and metering pumps – most of them magnetic drive design.
Dependable, energy efficient performance
March introduced the first magnetic coupled pump in 1963. The patented magnetic drive design eliminates the multitude of problems related to shaft seals, including leakage and power draining friction. Full motor horsepower is transferred to pumping power with no power loss due to seal friction. And there is no maintenance caused by the inevitability of seal wear.
Built-in overload protection
Built to stand up under heavy loads, March pumps are equipped with built-in overload protection. Under adverse conditions, the magnetic drive acts as a clutch to eliminate overloading and motor burnouts.
Easy to maintain
Should they ever need service, March pumps are easy to maintain, and many are designed so that you can replace motors in seconds without having to drain the system. No special tools or talent are needed to remove just a few screws and bolts for inspection or replacement. Motors are easily separated from pump housings. A full stock of pumps, parts and technical support is available worldwide from more than 150 stocking sales and service locations.
In order to maintain the highest quality control standards, March manufactures most of its pump components in house, including some fractional horsepower motors and all injection molded plastics. In chemical pumps, this means close control of materials in contact with solutions and better compatibility with corrosive solutions.
All pump parts are designed to meet or exceed potential job demands. In pumps for highly corrosive applications all components to be exposed to chemicals are either encapsulated or molded of appropriately resistant plastics. Metals are used where plastics are not compatible with the solution to be handled. These pumps are recommended for high acid concentrations, alkalis, solvents and high specific gravity solutions. UL recognized components are used throughout, and many models are UL listed.
High quality materials of construction are used throughout. Proven materials like Delrin®, polypropylene, Viton®, Teflon®, Ryton®, Kynar®, stainless steel and Hastelloy® cover a broad range of applications. Consult your March engineer about the right materials of construction for your application.
- Delrin® is a registered trademark of DuPont
- Hastelloy® is a registered trademark of Haynes International, Inc.
- Kynar® is a registered trademark of Pennwalt Corporation
- Ryton® is a registered trademark of Phillips Petroleum Company
- Teflon® is a registered trademark of DuPont
- Viton® is a registered trademark of DuPont Dow Elastomers
March Pump Update on Kynar Transition
March is in the transition stages of changing the grade of plastic used in its Kynar Pumps. All Kynar pumps which had been constructed using Carbon Filled Kynar are being switch to Glass Filled Kynar. The Carbon Filled Kynar is black in color. The Glass Filled Kynar is yellow.
The Carbon Filled Kynar is used on BC-3K-MD, BC-4K-MD, TE-5K-MD, TE-5K-MD-AC, TE-5.5K-MD, TE-5.5K-MD-AC, TE-6KMD, TE-7K-MD, SP-TE-7K-MD, and the TE-8K-MD. Several MDX Pumps and the TE-10K-MD use a combination of Natural Kynar and Carbon Filled Kynar, the Carbon Filled Kynar will be changed to the Glass Filled Kynar in this model as well. This will not affect the TE-5NK-MD or TE-7.5K-MD, which is constructed from Natural Kynar, which is white.
The most important reason for this change is the Glass Filled Kynar has a higher resistance to Sodium Hypochlorite then the Carbon Filled. The manufacturer of Kynar, Arkema, has tested the plastic with 20% Sodium Hypochlorite at 194F for 30 days and found no damage to the plastic. March has conducted its own testing, testing the parts at 14% Sodium Hypochlorite for the last 2 months at ambient, and no damage has been detected. March has also conducted pressure and temperature testing, and the Glass Filled Kynar meets or exceeds the Carbon Filled Kynar it is replacing.
The Glass Filled Kynar also has the following certifications, FDA Food Compliant, 3A, USP Class VI, V-0, and NSF 61.
When repairing or replacing, the front and rear housings must be the same material as each other. Do not mix and match the housings. The impeller, of either material, will fit in both the Glass Filled Kynar and Carbon Filled Kynar housings.
Instead of changing part numbers for the new material, the part numbers for the Carbon Filled Kynar parts now call for Glass Filled Kynar. If it is necessary for you to have Carbon Filled Kynar, please contact your distributor or the factory to check if it is in stock and to receive instructions on how to receive it.
If you have questions, please contact the factory.