Wilo EMU FA+HC20.1 Series Installation And Operating Instructions Manual page 70

Assembling the suspension unit
Type designation
1. Connection type
2. Diameter of the pump dis-
charge port
3. Model
4. Number of guide elements
5. Type of guide elements
6. Coupling base design
E-2
1 2 3
Designation e.g. DN 80 N
- 1=connection type
- 2=diameter of the pump discharge port
- 3=model
- 4=number of guide elements
- 5=type of guide elements
- 6=coupling base model
- DN=discharge port with flange
- R=discharge port with thread
- R=2"
- DN=36 to 600
- =standard model
- L=low-pressure model
Suspension units which are marked with "L" can only be used up to a certain pump pressure, i.e. it is
possible that they may not be operated at the top limits of the performance range of the con-
nected machine. It has been designed that if a certain pump pressure is attained, the coupling
flange will disengage from the coupling base and the medium will flow out to the side. As a result,
the pump head and the pump quantity are significantly reduced.
Note the values specified for the operating point on the machine data
sheet.
- S=high-pressure model
Suspension devices designated with "S" are used for machines that have a very high operating
pressure. If a standard model is used here, the unit would disengage from the coupling base due to
the high operating pressure. These special suspension units have been designed so that they can
ensure an optimum connection between the coupling flange and the coupling base even at very
high pressure.
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- 1=single pipe guide
- 2=double pipe guide
- R=pipe
- T=T-rail
- =without elbow
- K=with elbow
We differentiate between "with elbow" and "without elbow". Without elbow means that the cou-
pling base has a horizontal connection to the pipeline system. With elbow means that a 90°-arch is
integrated into the coupling base and a vertical connection to the pipeline system is available.
4 5 6
/ 2 R K
WILO EMU 3.0