en
Application/use
28
WILO SE 2021-07
–
Maximum: -15 to +60 °C (5 to 140 °F), max. humidity:
90 %, non-condensing.
–
Recommended: 5 to 25 °C (41 to 77 °F), relative humidity:
40 to 50 %.
–
Protect the pump from direct exposure to sunlight. Ex-
treme heat can cause damage!
ƒ
Do not store the pump in rooms where welding work is carried
out. The resulting gases or radiation can corrode the elastomer
parts and coatings.
ƒ
Seal the suction and pressure connection tightly.
ƒ
Protect the connection cable against kinking and damage.
Maintain a constant bend radius!
ƒ
Impellers must be turned by 180° at regular intervals (3 –
6 months). This prevents the bearings from jamming and re-
news the lubrication film on the mechanical seal.
NO-
TICE! Wear protective gloves!
4
Application/use
4.1
Intended use
For pumping in commercial areas of:
ƒ
Sewage not containing faeces
ƒ
Wastewater (with small amounts of sand and gravel)
ƒ
Wastewater, slightly acidic with a pH value > 4.5
ƒ
The Rexa UNI submersible pumps … B/ and Rexa UNI … K/ are
additionally suitable for pumping of:
–
Lake- and seawater
NaCl content (common salt): max. 30 g/l up to 20 °C
–
Swimming pool water, max. chloride content: 400 mg/l
–
Wastewater, slightly acidic with a pH value of > 3.5
Sewage pumping according to (DIN) EN 12050
The pumps meet the requirements of EN 12050-2.
4.2
Improper use
DANGER
Explosion due to pumping of explosive flu-
ids!
Pumping of highly flammable and explosive fluids
(gasoline, kerosene, etc.) in pure form is strictly
prohibited. There is a risk of fatal injury due to ex-
plosion! The pumps are not designed for these flu-
ids.
CAUTION
Use in biogas applications forbidden!
The fluids in biogas applications are highly ag-
gressive. These fluids will destroy the pump. Use
with these fluids is strictly forbidden!
The submersible pumps must
not be used
for pumping:
ƒ
Untreated sewage
ƒ
Sewage containing faeces
ƒ
Drinking water
ƒ
Fluids containing hard components (such as stones, wood,
metal, etc.)
ƒ
Fluids containing high quantities of abrasive contents (e.g.
sand, gravel).
ƒ
Fluids with floating contents (e.g. polystyrene, wood chips)
Intended use also includes compliance with this manual. Any
other use is regarded as non-compliant with intended use.
5
Product description
5.1
Description
Submersible pump for stationary and portable wet well installa-
tion in intermittent operation.
Padus UNI ...
Padus UNI ... /VA
1
2
3
4
5
6
6
7
8
4
Fig. 2:
Overview
1
Handle/attachment point
2
Padus UNI M …/UNI M … B: Motor housing
Padus UNI M … K: Cooling shroud
3
Hydraulics housing
4
Pressure port
5
Strainer
6
Connection cable
7
Vertical float
8
Vertical float: Manual/automatic switch
Padus UNI M … /M …/P
Wastewater pump with open multi-channel impeller and vertical
threaded connection. Hydraulics housing and impeller made of
copolymer. Surface-cooled 1~ motor with integrated operating
capacitor and self-switching thermal motor monitoring. Oil-filled
sealing chamber with double sealing. Stainless steel motor hous-
ing. Detachable connection cable with fitted shockproof plug.
