Tsurumi is one of the most respected names in submersible pumps, trusted on construction sites, in wastewater plants, and in backyard ponds around the world. But the lineup is broad, and the model codes can be confusing if you are not sure which series fits your job.
This guide breaks down the main Tsurumi pump series, explains what makes them so durable, and shows how to match a pump to your application by flow, head, and the type of water you are moving.
What Makes Tsurumi Pumps Different
Tsurumi pumps are engineered for long, hard, continuous duty, which is why contractors rely on them. Several design features stand out:
- An oil lifter that keeps the mechanical seal lubricated even when the pump runs at an angle or briefly dry
- A dual silicon carbide mechanical seal for long seal life in abrasive water
- An anti-wicking cable entry that stops water from traveling up the cord into the motor
- Built-in motor protection against overheating and overload
Tsurumi Series at a Glance
Here is how the most common Tsurumi families compare:
|
Series |
Type |
Best For |
|---|---|---|
|
HS Series |
Portable dewatering |
Construction sites, flooded basements, general water removal |
|
LB Series |
Automatic dewatering |
Hands-off draining with a built-in water level sensor |
|
NK Series |
High-head dewatering |
Moving water long distances or to significant height |
|
B Series |
Non-clog wastewater |
Sewage, effluent, and solids-laden water |
|
C Series |
Cutter / sewage |
Wastewater with fibrous solids that need cutting |
|
Pond & Fountain |
Decorative / aeration |
Ponds, water features, and koi pond circulation |
Manual vs Automatic Models
Many Tsurumi pumps come in both manual and automatic versions. Manual pumps run whenever they have power and are ideal for occasional or supervised use. Automatic models add a float or internal level sensor so the pump switches on and off with the water level, which reduces wear and is perfect for unattended sump and dewatering jobs. For larger installations, the auto-alternation pond and wastewater models can coordinate multiple pumps without a separate control panel.
How to Choose the Right Tsurumi Pump
Work through four questions to land on the right model:
- Flow: how many gallons per hour or per minute do you need to move?
- Head: how high or how far must the water travel? Check the curve at that height.
- Solids: is the water clean, muddy, or full of sewage and solids? This decides between dewatering, non-clog, and cutter models.
- Control: do you need manual operation, or automatic on/off with a float?
|
Not sure which Tsurumi series fits your job? Browse the full Tsurumi pump collection or call (844) 378-6771 and our team will match a pump to your flow and head. |
Common Applications
Different jobs call for different Tsurumi families. For pumping out a flooded site or trench, see our dewatering pumps. For moving wastewater and solids, look at sewage pumps. For circulating a water feature, browse pond pumps. And for general drainage, compare options in our submersible pumps collection.
Final Thoughts
Tsurumi's reputation comes from building pumps that keep running in conditions that destroy lesser equipment. Once you know your flow, head, solids, and control needs, choosing the right series is straightforward. If you want a second opinion before you buy, reach out to ePumps and we will confirm the best fit.
FAQ's
Which Tsurumi pump is best for construction dewatering?
For most construction and dewatering jobs, the HS Series portable pumps are the go-to choice for general water removal, while the NK Series handles high-head jobs that move water a long distance or to height. Choose an automatic LB model if you want the pump to switch on and off with the water level on its own.
What is the difference between manual and automatic Tsurumi pumps?
Manual pumps run whenever they have power and are best for supervised or occasional use. Automatic pumps include a float or internal sensor that turns the pump on and off based on water level, reducing wear and making them ideal for unattended sump and drainage applications.
Are Tsurumi pumps good for ponds and koi ponds?
Yes. Tsurumi's continuous-duty design, dual mechanical seal, and rugged construction make them well suited to ponds and koi ponds that need a pump running around the clock. Look at the pond and fountain models in the Tsurumi collection for circulation and aeration.
Where can I buy genuine Tsurumi pumps?
ePumps is an authorized distributor and carries a wide range of genuine Tsurumi pumps with full manufacturer warranty. If you need help selecting a model or finding a part, contact our team or call (844) 378-6771.
