MTH Pumps – Overview
MTH Pumps is a Plano, Illinois manufacturer of regenerative turbine pumps, centrifugal pumps, and sealless pumps, operating out of the same Illinois facility since 1965. What MTH has built over six decades is a focused, precision-engineered pump line designed for the applications where standard centrifugal pumps fall short — specifically high-pressure, low-flow duty points that demand tight tolerances and consistent performance across a wide range of operating conditions.
MTH pumps handle pressures from 5 to 1,000 PSI and flow rates from half a gallon per minute to 150 GPM, in cast iron, bronze, and stainless steel construction options across horizontal and vertical configurations. Every pump leaves the Plano facility 100% tested, and the entire operation is ISO certified. Their product line spans close-coupled and flex-coupled regenerative turbine pumps, close-coupled centrifugal pumps, sealless canned and hermetically sealed refrigeration pumps, and custom engineered pumps for OEM and specialty applications. A comprehensive accessories catalog rounds out the offering with relief valves, motors, and ancillary components.
MTH also provides one of the more useful support resources in the industry for distributors and engineers: cross-reference tables that allow direct comparison to competitive products from Grundfos, Aurora, Burks, Procon, and others, along with a pump type selector, general sizing procedures, model identification tools, and a full e-catalog. For a team specifying or replacing pumps in the field, that documentation depth makes a real difference.
| Company Name | MTH Pumps |
| Headquarters | 1021 W. Interstate Road, Plano, IL 60545 |
| Phone | +1 (630) 552-4115 |
| Website | mthpumps.com |
| Type of Manufacturing | Regenerative turbine pumps, centrifugal pumps, sealless pumps |
| Certifications | ISO Certified |
| Markets Served | Commercial HVAC, boiler feed, industrial, refrigeration, water treatment, municipal, OEM |
| Product Lines | Close-coupled regenerative turbine pumps, flex-coupled regenerative turbine pumps, close-coupled centrifugal pumps, sealless canned motor pumps, custom engineered pumps |
| Made In | USA |
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WHY MERION PUMP AND MTH
Regenerative turbine pumps occupy a specific and important niche in the pump world. They are the right answer when an application demands higher pressure than a standard centrifugal pump can deliver at low flow rates, and they are a particularly strong fit for boiler feed, HVAC condensate return, reverse osmosis, chemical injection, and commercial hot water recirculation applications. Specifying the wrong pump type in these situations creates chronic underperformance and service calls. Specifying the right one, a properly sized regenerative turbine pump, solves the problem cleanly.
MTH has been Merion’s answer for these applications across a long-standing relationship. Their regenerative turbine pump line covers the capacity and pressure range that comes up most often in the commercial and industrial applications we serve, and the depth of their product documentation means our team can select and specify with confidence rather than guessing at performance curves.
The MTH cross-reference library is also a practical tool in the replacement market. When a building has an aging Grundfos, Aurora, or Burks pump that needs to be replaced, MTH often has a direct cross-reference that simplifies the specification process and keeps the project moving. That capability is something we use regularly and that our contractor customers appreciate when a replacement needs to happen quickly.
MTH pumps are made in the USA, ISO certified, and 100% tested before they ship. For Merion customers, that means when we specify an MTH pump, we are recommending a product we know will perform as specified from the moment it goes in.
FEATURED PRODUCTS
MTH 1 Series Close-Coupled Regenerative Turbine Pump
The workhorse of the MTH lineup for commercial and industrial applications requiring high pressure at low flow. The 1 Series covers a broad range of duty points in cast iron, bronze fitted, all bronze, and stainless steel configurations, making it adaptable to clean water, hot water, and mildly corrosive fluid applications. A reliable specification for boiler feed, HVAC, reverse osmosis, and commercial hot water systems.
MTH 4 Series Flex-Coupled Regenerative Turbine Pump
For applications where a close-coupled configuration is not practical or where motor flexibility is required, the 4 Series brings the same regenerative turbine performance in a flex-coupled design that accommodates a broader range of motor and mounting configurations. Available in the same material options as the 1 Series, covering applications from standard commercial duty to demanding industrial and process requirements.
MTH Close-Coupled Centrifugal Pumps
When the application calls for centrifugal pump performance rather than a regenerative turbine, MTH’s close-coupled centrifugal line fills that need within the same product family. A practical specification for lower pressure, higher flow applications in commercial HVAC, plumbing, and light industrial systems where the simplicity and availability of a centrifugal design is the right fit.