Design
Compact directly driven submersible mixer
Application
- Swirling of deposits and solids in rain spillway basin and pump sump
- Destruction of floating sludge layers
- Other areas of application in agriculture and water supply
Technical data
- Mains connection: 3~400 V, 50 Hz
- Submerged operating mode: S1
- Protection class: IP 68
- Max. fluid temperature: 40 °C
- Mechanical shaft seal with SiC/SiC pairing
- Permanently lubricated roller bearings
- Max. immersion depth: 20 m
Equipment/function
- Stationary installation on walls and floors
- Flexible installation through the use of lowering device or special pipe attachment
- Can be swivelled vertically and horizontally during installation with lowering device
Materials
- Housing parts made of EN‐GJL
- Propeller made of PUR or stainless steel
- Propeller hub made of stainless steel
- Screwed connections made of stainless steel
Description/design
2-bladed propeller made of PUR or stainless steel. Nominal propeller diameter from 140 mm to 280 mm. Entwining-free design made possible by backward-curved incoming flow edge and patented helix hub. The propeller blades are permanently fixed, which guarantees the best possible hydraulic efficiency.
Wilo T-series submersible motor with standard connection, enabling simple and efficient adaptation of the motor power classes The motor heat is given off directly to the fluid via the housing. The winding is equipped with a temperature monitor. Large-sized grooved ball bearings ensure long service life of the motor bearings.
Double shaft sealing with large-volume sealing chamber to collect leakage from the mechanical seal; available with external sealing chamber electrode upon request. On the motor and fluid side, a corrosion- and wear-resistant mechanical seal made of solid silicon carbide material is used. A seal bushing made of stainless steel ensures long-term corrosion-protected fit of the mechanical seal.
The power cable is a type H07 cable for heavy mechanical loads. The power cable enters the motor housing through a water pressure-tight cable lead-in with strain relief and bend protection.
Configuration
A separate configuration must be carried out for each application to ensure optimum generation of fluid current. Carefully follow the instructions for the supplied configuration when installing the units.
Commissioning
Immersed operating mode S1:
The unit can be used immersed in permanent operation (max. 1000 h/year). Surfacing the propeller or motor is strictly prohibited. In the case of fluctuating fluid levels, the system should switch off automatically if the degree of water submersion drops below the minimum level.
When installing the power cables, make sure that they are not drawn into the propeller by the fluid current.
Options
- Special voltages
- Thermistor temperature sensor
- External sealing chamber monitoring
- Ceram C0 coating
- Ex-rated to ATEX or FM
Accessories
- Lowering device
- Auxiliary hoisting gear
- Wall and floor fixation bracket
- Special fastening pieces for the use of an auxiliary hoisting gear for multiple units
- Terminal stop
- Additional rope anchoring
- Fixation sets with anchor bolts
Scope of delivery
- Submersible mixer with mounted propeller and cable
- Cable length per customer request
- Accessories per customer request
- Operating and maintenance manual
