How to Read a Pump Curve: A Buyer's Guide to Flow, Head, and Efficiency
A pump curve is a graph of what a specific pump can do: how much water (flow, in GPM) it moves at each level of resistance (head, in feet).
Hassle Free Returns
Free Shipping Above $300
Open 24/7
Water Pump Experts


TSURUMI PUMPS
ePumps is your trusted source for water pumps leading brands including Tsurumi, Grundfos, Berkeley, Sta-Rite, ShinMaywa, Myers, and Yaskawa. Whether you need a submersible sump pump for basement flooding, a pressure pump to boost household or commercial water flow, or a pond pump for koi and water features, we make it simple to find the right solution.
With free shipping above $300, hassle-free returns, and access to 24/7 pump experts, we provide the products and service contractors, facilities, and homeowners rely on.




Tsurumi Pump
Power Cord for a Tsurumi HS2.4S 110V 20'
HS-PC
Tsurumi Pump
Tsurumi Submersible Pump VANCS50PN2.75S (8PN) Pond Pump System
50PN2.75S (8-PN)
Tsurumi Pump
Tsurumi Submersible Pump VANCS50PN2.75S 220V (8PN) Pond Pump System
50PN2.75S (8-PN)
Berkeley
Berkeley Close-Coupled Centrifugal Pump B1 1/2TPMS B74396 5 H.P. System
B1 1/2TPMS B74396
Berkeley
Berkeley Frame Mount Centrifugal Pump B3ZRM B80303 JM Frame CCW NPT
B3ZRM B80303
Berkeley
Berkeley Close-Coupled Centrifugal Pump B1-1/2TPMS B58088 10 H.P. System
Berkeley B1 1/2TPMS B58088 10 H.P.
Berkeley
Berkeley Close-Coupled Centrifugal Pump B2TPMS B54530 7.5 H.P.
Berkeley B2TPMS B54530 7.5 H.P.
Berkeley
Berkeley Close Coupled Pump B2 1/2ZPLS B66540S 25 H.P.
B2 1/2ZPLS B66540S
Air Flow Pump
Air Flow Pump AFP-65S-C-BF 1/2 H.P. Boiler Feed System
AFP-65S-C-BF
Air Flow Pump
Air Flow Pump AFP-110DS-C 1/2 H.P. Duplex Condensate Pump System
AFP-110DS-C
Air Flow Pump
Air Flow Pump AFP-65S-D 3/4 H.P. Condensate Pump System
AFP-65S-D
Air Flow Pump
Air Flow Pump AFP-360QS-F Condesnate Pump System
AFP-360QS-F
Air Flow Pump
Air Flow Pump AFP-360QS-F-BF Boiler Feed System
AFP-360QS-F-BF
Berkeley
Berkeley Close-Coupled Centrifugal Pump B3TPM B51633 20 H.P. System
Berkeley B3TPM B51633 20 H.P.
Berkeley
Berkeley Close-Coupled Centrifugal Pump B3TPM B70084 7.5 H.P.
Berkeley B3TPM B70084 7.5 H.P.
Grundfos
Grundfos Vertical Multistage Pump CR64-1 96418858 15 H.P. 230/460V 3 Phase
Grundfos CR64-1 15 H.P. 96418858
Grundfos
Grundfos Vertical Multistage Pump CR64-1 97533269 10 H.P. 230/460V 3 Phase
Grundfos CR64-1-1 10 H.P. 97533269
A pump curve is a graph of what a specific pump can do: how much water (flow, in GPM) it moves at each level of resistance (head, in feet).
Buying boiler feed equipment before winter starts with the boiler's documented requirements. The pump must deliver the required flow against the operating conditions, with a suitable inlet supply and compatible...
A condensate return pump replacement should begin with the existing steam-system duty and the fault that has been found. Matching tank size or motor horsepower alone can leave important differences...
The Tsurumi HS2.4S and LB-480 are both portable submersible dewatering options, but their features point to different selection priorities. The HS2.4S has a built-in agitator for sand and debris within...
ePumps is your nationwide supplier for high-quality water pumps and pump parts. From submersible sump and pond pumps to pressure, well, and gas engine systems, we deliver durable, high-performance solutions for residential, commercial, and industrial applications. Whether you need equipment for basement drainage, irrigation, HVAC systems, or pond maintenance, our experts are here to help you choose the right product for your needs.

HIGH-QUALITY, RELIABLE, AND TRUSTWORTHY
We distribute pumps and components from leading manufacturers including Sta-Rite, Berkeley, Tsurumi, Myers, Grundfos, ShinMaywa, Yaskawa, and Square D—brands known for reliability and engineering excellence. Every pump we sell is backed by competitive pricing, fast shipping, and hands-on support from a team with over 20 years of industry experience.Our specialists go beyond order fulfillment to ensure long-term reliability—offering guidance, technical help, and after-purchase support so you can shop with total confidence.
Free Nationwide Shipping on most orders
Hassle-Free Returns within 30 days
24/7 Expert Assistance by phone or chat
Authorized Distributor for leading pump brands
+50 Years of Industry Expertise serving contractors & homeowners
At ePumps, superior customer service, quality products, and affordable prices are the foundation of everything we do.
sales@epumps.com
(844) EPUMPS1 (378-6771)
Chat with an expert