Wilo-EMU sprinkler pumps

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Your advantages

>       VdS certified

>       Heavy-duty version made of cast iron or bronze

>       Pressure shroud in corrosion-free and hygienic stainless steel version with rubber bearings for reducing noise and vibration

>       VdS-certified non-return valve available as an accessory


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Design

Multistage submersible pump in sectional construction with VdS approval for vertical or horizontal installation for supplying sprinkler systems

 

Application

For pumping water without long-fibre and abrasive constituents for supplying sprinkler systems

 

Equipment/function

>       Multistage submersible pump with semi-axial impellers

>       NEMA coupling (depending on type)

>       Three-phase motor for direct or star-delta start

>       Rewindable motors

 

Typekey

Example:

Wilo-EMU KM 1300S-2a + NU 801-2/60

Hydraulics:

KM 1300S-2a

KM1300

Hydraulics type

S

Trimmed impeller

2

Number of hydraulic stages

A

Defined impeller diameter

Motor:

NU 801-2/60

NU

Submersible motor (NU…, U…)

801

Size (6... = 6"; 8... = 8"; 9... = 10"; 12... = 12"; 15... = 16")

2

Number of poles

60

Package length (cm)

 

Technical data

>       Mains connection: 3~400 V/50 Hz

>       Submerged operating mode: S1

>       Max. fluid temperature: 25 °C

>       Max. sand content: 35 g/m3

>       Max. number of starts: 10/h

>       Max. immersion depth: 300 m

>       Protection class: IP68

 

Construction

Submersible pump for vertical or horizontal installation in tanks to supply sprinkler systems.

 

Hydraulics

Multistage submersible-motor pump with semi-axial hydraulics. Housing parts made of EN-GJL with 2K coating or G-CuSn10, impellers made of G-CuSn10. Guide housing with casing wear rings made of special bronze. Pressure connection as flange connection.

 

Motor

Three-phase motor with rewindable PVC-insulated winding for direct and star-delta starting. Motor shroud made of A2/A4-quality stainless steel or steel/G-CuSn10. Pump connection up to 8" overall size as NEMA connection, as standardised connection from 10" and larger. Sealing of motor shaft by the use of a mechanical seal made of solid silicon carbide material.

Thrust bearing with rockers for absorption of high axial thrust. Negative axial thrust is absorbed by the counter-thrust bearing. Self-lubricating bearing. NU… series motors are filled with water-glycol mixture as standard. Alternatively, they can be filled with drinking water (T version). U… series motors generally have to be filled with drinking water.

 

Cooling

The motor is cooled by the pumped fluid. The motor must always be immersed when operated. Vertical installation is possible with or without cooling jacket. For horizontal installation, bearing brackets must be used for reinforcement of the unit. An anti-vortex plate or cooling jacket may be used to improve the inlet flow.

 

Pressure shroud

The pressure shroud is used for the direct installation of the unit in the pipe system. Standard models are without mounted non-return valves. The maximum inlet pressure is 10 bar or 5 bar on D 500 unit.

 

Delivery state

>       Hydraulics + motor completely assembled

>       Connection cable in accordance with VDE/KTW, cable cross-section and length per customer request

>       Installation and operating instructions