Non-Clog End-Suction Pumps
Submersible pump
Reliable solids handling for municipal and industrial wastewater systems
- Reliable solids handling with 2-vane or 3-vane impellers (ball passage up to 200 mm, series-dependent).
- Wide hydraulic portfolio covering DN 50 to DN 800, flows up to 8,000 m³/h and heads up to 61 m.
- Robust cast-iron, bronze, stainless steel, duplex and super-duplex material options.
- Service-friendly back pull-out construction for fast maintenance without disturbing piping.
- Horizontal or vertical execution for flexible installation.
- Upshot/Overshot discharge orientation depending on model.
- Low vibration and reduced noise levels.
- Energy-efficient hydraulic design for lower power consumption and reduced lifecycle costs.
- Standardized flanges for global system compatibility.
Design
The Non-Clog End-Suction range is engineered for continuous operation in wastewater, sewage, industrial effluent and storm-water transfer applications.
The portfolio includes five series: SK, KN, MFV, SW, ESS; each developed to handle high-solids loading and abrasive media with minimal risk of blockage.
The series cover a broad spectrum of duty points with multiple discharge diameters, hydraulic configurations, impeller designs, and mounting executions. All models are available with gland packing (standard) or mechanical seal (optional) and can be supplied in horizontal or vertical installations depending on site requirements.
Application
For pumping of:
- Raw municipal sewage
- Wastewater containing solids and fibrous material
- Treated and partially treated effluent
- Industrial process wastewater
- Storm-water and flood-control flows
Equipment/function
- Gland-packed seal (standard)
- Optional mechanical seal (SiC/SiC)
- Grease lubrication (standard), oil lubrication (optional)
- IEC motor versions depending on configuration
- Standard or spacer coupling (series dependent)
- Clockwise / Anti-Clockwise direction of rotation
- Horizontal / vertical mounting (model dependent)
Type key
Examples: | Wilo-KN Series |
200/250 CKN | |
200 | Discharge Nominal Diameter in mm |
250 | Suction Nominal Diameter in mm |
8/10 BKN-TB-MK-1 | |
8 | 8" Discharge Nominal Diameter |
10 | 10" Suction Nominal Diameter |
MK-1 | Hydraulic |
Note: | Max ball passage size possible up to 125 mm, with 2 vane impellers |
Example | Wilo-SW Series |
400/450 SW TA MK-1 | |
400 | Discharge Nominal Diameter in mm |
450 | Suction Nominal Diameter in mm |
MK-1 | Hydraulic |
24/30 SW-T | |
24 | 24" Discharge Nominal Diameter |
30 | 30" Suction Nominal Diameter |
T | T1/T2/T3 Hydraulic |
30/36 SW | |
30 | 30" Discharge Nominal Diameter |
36 | 36" Suction Nominal Diameter |
Note: | Max ball passage size possible up to 200 mm, with 2/3 vane impellers |
Example | Wilo-MFV Series |
10 MF | |
10 | 10" Discharge Nominal Diameter |
Note: | Max ball passage size possible up to 100 mm, with 3 vane impellers |
Technical data
Hydraulics
- Fluid temperature: 0…120 °C (mechanical seal)
- Ambient temperature: up to 40 °C
- Free passage: up to 200 mm
- Nominal diameters: DN 50…DN 800
- Flow: up to 8,000 m³/h
- Head: up to 61 m
- Operating pressure: 4 / 6 / 10 bar
Motor
- IEC standard motor permanently coupled to hydraulics.
- IP rating: model & application-specific
- Insulation class: F
- Efficiency class: up to IE4 (depending on model)
Scope of delivery
Unit Version
- Hydraulics + standard motor
- Coupling (pin-bush standard, spacer optional)
- Baseplate-mounted, pre-aligned with coupling
- Installation & operating instructions
Bare-shaft Version (optional)
- Hydraulics + baseplate
- Pre-assembled coupling
- Installation & operating instructions
Options
- Abrasion-resistant Ceram or equivalent coating
- Extended-shaft vertical execution
- Different material combinations (duplex, super duplex, bronze, etc.)
- Motors in IE2/IE3/IE4 efficiency classes
- ANSI / DN -standard flanges
- Oil-lubricated bearings (dependent on pump model)
- Mechanical seal
- Spacer coupling
- Application-specific flange orientations
Accessories
- Switchgear and control panels
- Bolt and anchor fixation sets
- EPDM gasket sets
- Bearing kits & wear-ring kits
- Spare impeller and wear components
Commissioning
For all end-suction non-clog pumps, proper priming, alignment, and vibration checks are required before startup.
ESS units are not overflow-proof and must be shut down immediately in case of water ingress. Regular inspection of sealing chambers and wear parts is recommended for optimal service life.