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The use of new accessories is recommended.
Designation
2 Round counterflanges, steel,
2 Round counterflanges, steel,
2 Round counterflanges, stainless steel, 1.4404
2 Round counterflanges, stainless steel, 1.4404
2 Round counterflanges, steel,
2 Round counterflanges, steel,
Bypass kit 30 bar
Bypass kit (with pressure gauge 25 bar)
Baseplate with dampers for pumps up to 5.5 kW
6. Description and function
6.1 Product description
FIG. 1
1 - Motor connection bolt
2 - Coupling guard
3 - Mechanical seal
4- Hydraulic stage casing
5 - Impeller
6 - Pump shaft
7 - Motor
8 - Coupling
9 - Lantern
10 - Tube liner
11 - Flange
12 - Pump housing
13 - Base plate
FIG. 2, 3
1 - Strainer
2 - Pump suction valve
3 - Pump discharge valve
4 - Check valve
5 - Drain + priming plug
6 - Air bleed screw + Filling plug
7 - Tank
8 - Foundation block
9 - In option : pressure plugs (a-suction,
b-discharge)
10 - Lifting hook
6.2 Design of product
• HELIX pumps are vertical high pressure non-self
priming pumps with inline connection based on
multistage design.
• HELIX pumps combine use of both high efficien-
cy hydraulics and motors (if any).
• All metallic parts in contact with water are made
of stainless steel or grey cast iron.
• For aggressive fluid, special versions exist with
18
Article no.
(PN16 – DN65)
4038591
(PN25 – DN65)
4038593
(PN16 – DN80)
4073797
(PN25 – DN80)
4073799
(PN16 – DN80)
4072534
(PN25 – DN80)
4072536
4230274
4230275
4230276
4230316
4230317
4230318
4157154
stainless steel only for all wetted components.
• Helix pumps are equipped with a simple mecha-
nical seal or with a cartridge seal to facilitate
maintenance.
• In addition, for heaviest motor, a specific cou-
pling allows to change this seal without remo-
ving the motor.
• Depending on the model, the pump casing
is equipped with additional connections for
connecting accessories (Fig. 10).
• HELIX lantern design integrates an additional ball
bearing that withstand hydraulic axial forces: this
allows the pump to use a fully standard motor.
• Special handling devices are integrated in order
to facilitate pump installation (Fig. 8).
7. Installation and electrical connection
Installation and electrical work in compliance
with any local codes and by qualified personnel
only.
WARNING! Bodily injury!
Existing regulations for the prevention of acci-
dents must be observed.
WARNING! Electrical shock hazard!
Dangers caused by electrical energy must be
excluded.
7.1 Commissioning
Unpack the pump and dispose of the packaging
in an environmentally-responsible manner.
7.2 Installation
The pump must be installed in a dry, well-venti-
lated and frost-free place.
CAUTION! Possible damage of the pump!
Dirt and solder drops in to the pump body can
effect the pump operation.
• It is recommended that any welding and solde-
ring work be done before installing the pump.
• Thoroughly flush the system out before
installing the pump.
- The pump must be installed in an easily acces-
sible position to facilitate inspection or replace-
ment.
- For heavy pumps, install a lifting hook (Fig. 2,
item 10) above the pump in order to ease its
disassembly.
WARNING! Risk of accident by hot surfaces!
The pump must be positioned so that someone
cannot come into contact with the hot pump
surfaces while operation.
- The pump must be installed in an easily acces-
sible position to facilitate inspection or replace-
ment.
WARNING! Risk of fall!
The pump must be screwed to the ground.
Observe the tightening torque (FIG. 9).
- Place the pump where it will be easy to reach, to
facilitate inspection and removal work. The pump
WILO SE 06/2021
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