Description
Wilo-NL – Base Mount End Suction Pumps
The Wilo-NL Series consists of base-mounted, end-suction centrifugal pumps engineered for efficient fluid handling in commercial, industrial, and municipal applications. With rugged cast-iron construction, bronze-fitted internals, and reliable mechanical seals, these pumps are designed for long-term durability and optimized hydraulic performance. The NL Series supports a wide range of flow and head requirements, making it ideal for HVAC systems, pressure boosting, water transfer, and general pumping applications.
Model Designation
The Wilo-NL model code is structured as follows:
- 2½ – Suction Size
- 1½ – Discharge Size
- 6 – Maximum Impeller Diameter
Key Features
- Heavy-duty cast-iron construction for long service life
- Standard mechanical seal with bronze-fitted wet end components
- Available as pump-end-only or complete packages with base, coupling, and guard
- Optimized hydraulic design for high efficiency
- Designed for commercial HVAC, industrial circulation, and water transfer systems
Standard Mechanical Seal, Bronze Fitted, Stock Models
Pump End Only (Less Motor)
| Model | Article Number | List Price (USD) |
|---|---|---|
| NL 2×1-1/4×5 | 8035007 | 1825 |
| NL 2×1-1/4×6A | 8035008 | 1985 |
| NL 2-1/2×1-1/2×5 | 8035013 | 1780 |
| NL 2-1/2×2×5 | 8035018 | 1840 |
| NL 2-1/2×2×12 | 8035022 | 3700 |
| NL 3×2-1/2×5 | 8035023 | 1910 |
| NL 3×2-1/2×10 | 8035026 | 3265 |
| NL 3×2-1/2×12 | 8035027 | 3770 |
| NL 4×3×10 | 8035030 | 3275 |
| NL 5×3×16 | 8035032 | 5375 |
| NL 5×4×6 | 8035033 | 3265 |
| NL 6×5×8 | 8035038 | 4015 |
Pump, Base, Coupling and Guard Packages
| Model | Frame Size | Approx. Weight (lbs) | List Price (USD) |
|---|---|---|---|
| NL 2-1/2×2×12 | 213/215 | 578 | 8890 |
| NL 2-1/2×2×12 | 254/256 | 886 | 9065 |
| NL 2-1/2×2×12 | 284/286 | 1050 | 9420 |
| NL 3×2-1/2×10 | 182/184 | 278 | 8215 |
| NL 3×2-1/2×10 | 213/215 | 278 | 8310 |
| NL 3×2-1/2×10 | 254/256 | 278 | 8550 |
| NL 3×2-1/2×12 | 213/215 | 780 | 9340 |
| NL 3×2-1/2×12 | 254/256 | 930 | 9375 |
| NL 3×2-1/2×12 | 284/286 | 1180 | 9805 |
| NL 4×3×10 | 213/215 | 325 | 8575 |
| NL 4×3×10 | 254/256 | 325 | 8785 |
| NL 5×4×6 | 182/184 | 296 | 8185 |
| NL 5×4×6 | 213/215 | 296 | 8280 |
| NL 5×4×6 | 254/256 | 296 | 8595 |
| NL 5×4×6 | 284/286 | 296 | 9095 |
| NL 5×4×6 | 324/326 | 332 | 9330 |
| NL 5×4×6 | 364/365 | 332 | 10485 |
| NL 5×4×6 | 404/405 | 343 | 10960 |
| NL 6×5×8 | 254/256 | 380 | 9580 |
| NL 6×5×8 | 284/286 | 380 | 9990 |
| NL 6×5×8 | 324/326 | 380 | 10130 |
Applications
- Commercial HVAC chilled water and heating loops
- Industrial water circulation and cooling systems
- Booster pumping and water transfer
- Municipal water distribution
- General purpose pumping in buildings and industrial facilities
Specifications and pricing are based on manufacturer-provided product data.
NOTE: We will contact you during order fulfilment to discuss shipping and handling costs for products weighing more than 150 pounds. These costs will be billed separately.