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5.4 Accessories
Original accessories are available for Helix range.
Designation
2x round counterflanges in stainless steel 1.4404 (PN16 – DN50)
2x round counterflanges in stainless steel 1.4404 (PN25 – DN50)
2x round counterflanges in steel (PN16 – DN50)
2x round counterflanges in steel (PN25 – DN50)
2x round counterflanges in stainless steel 1.4404 (PN16 – DN65)
2x round counterflanges in stainless steel 1.4404 (PN25 – DN65)
2x round counterflanges in steel (PN16 – DN65)
2x round counterflanges in steel (PN25 – DN65)
2x round counterflanges in stainless steel 1.4404 (PN16 – DN80)
2x round counterflanges in stainless steel 1.4404 (PN25 – DN80)
2x round counterflanges in steel (PN16 – DN80)
2x round counterflanges in steel (PN25 – DN80)
By-pass kit 25 bar
By-pass kit (with Manometer 25 bar)
The accessories must be ordered separatly.
• IF-Module PLR for connecting to PLR/interface
converter.
• IF-Module LON for connection to the LONWORKS
network (Fig. A6).
• Non-return valves (with nose or spring ring when
operating in constant pressure).
• protection kit against dry-running.
• sensor kit for pressure regulation (accuracy:
≤ 1 % ; use between 30 % and 100 % of the
reading range).
Use of new accessories is recommended.
6. Description and function
6.1 Description of the product
Fig. 1
1 - Motor connection bolt
2 - Coupling gard
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 and 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
10 -Lifting hook
34
Fig. A1, A2, A3 et A4
1 - Block of switches
2 - Pressure sensor
article N°
3 - Tank
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4 - Insulation valve of the tank
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6.2 Design of product
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• Helix pumps are vertical high pressure non-self
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priming pumps with inline connection based on
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multistage design.
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• Helix pumps combine use of both high efficiency
hydraulics and motors (if any).
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• All metallic parts in contact with water are made
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of stainless steel.
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• For aggressive fluid, special versions exist with
stainless steel only for all wetted components.
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• A cartridge seal is used as standard for all Helix
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range in order to ease maintenance.
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• In addition, for heaviest motor (>40 kgs), a spe-
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cific coupling allows to change this seal without
removing the motor.
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• 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.
7. Installation and electrical connection
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 sol-
dering work be done before installing the pump.
• Thoroughly flush the system out before
installing the pump.
- The pump must be installed in an easily accessible
position to facilitate inspection or replacement.
- For heavy pumps, install a lifting hook (Fig. 2,
item 10) above the pump in order to ease its dis-
assembly.
- The motor is provided with condensate hole
(under the motor), filled in factory by caps to
guarantee the IP55 protection. For a use in tech-
nical climatological or refrigerated, these caps
must be removed to allow the evacuation of the
water of condensation.
WARNING! Risk of accident by hot surfaces!
The pump must be positioned so that someone
cannot come into contact with the hot pump sur-
faces while operation.
- Install the pump in a dry place protected from
frost, on a flat concrete block using appropriate
accessoiries. If possible, use an insulating mate-
WILO SE 03/2013
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