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5.4
Accessories
The following original accessories are available for
the Helix series:
• IF module PLR for connecting to PLR/interface
converter
• IF module LON for connection to LONWORKS
network. These modules plug directly into
the connection interfaces of the converter.
•
By-pass kit.
•
Insulating valves.
•
Bladder or galvanised tank.
•
Tank for antihammer blow effect.
•
Weld-on (Steel) or screw-on (Stainless Steel)
counterflange.
•
Non-return valves (with nose or spring ring when
operating in constant pressure).
•
Strainer-foot valve.
•
Vibrationless sleeves.
•
Protection kit against dry-running
•
Sensor kit for pressure regulation
(accuracy : ≤ 1 % ; use between 30 % and 100 %
of the reading range).
Use only accessories that are new.
0.75
6.
Description and function
6.1
Description of the product
(Fig. 1, 2, 4, 5, 6, 7, 8)
1 –
Strainer foot-valve
2 –
Pump suction valve
3 –
Pump discarge valve
4 –
Non-return valve
5 – Fill plug
6 – Drain plug
7 – Pipe supports or brackets
8 – Strainer
9 – Storage tank
10 – Town water supply
11 – Switch and section switch with fuses
12 – Tap
13 – Foundation block
14 – Pressure sensor
40
Power (kW)
1.1
1.5
2.2
15 – Tank
16 – Tank insulation valve
17 – Display
18 – Adjustment button
HA : Maximum suction head
HC : Minimum inlet pressure
6.2
Product characteristics
• Centrifugal with horizontal axis.
• Multistage.
• Not self-priming.
• Tapped suction/delivery ports.
Axial suction, radial delivery upwards.
• Shaft sealing with standardized mechanical seal.
Materials: see technical description.
7.
Installation and electrical connection
All installation and electrical work may only
be carried out by qualified personnel and in
compliance with local codes and regulations!
WARNING! Risk of severe injury!
The applicable regulations for the prevention of
accidents must be complied with.
WARNING! Risk of electrical shock!
Danger from electric current must be eliminated.
Two standard types.
Fig. 1: pump in suction
Fig. 2: pump in load on storage tank (rep. 9) or
town water supply (rep. 10).
7.1
Mounting
- Install the pump in a place easy to reach, protec-
ted against frost and as close as possible from
the drawing point.
- Install the pump on a concrete block (rep. 13) or
directly on a very smooth and horizontal ground.
- Fixing of the pump through two holes for Ø M8
bolts.
Ports
200
400
Suction
1"(26-34) 1"1/4(33-42) 1"1/2(40-49)
Delivery
1"(26-34)
1"(26-34)
Tapped ports
800
1600
2"(50-60)
1"1/4(33-42) 1"1/2(40-49)
WILO SE 10/2019
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