Intended Use; Product Information; Technical Data; Scope Of Delivery - Wilo -Drain STS 40 Serie Instrucciones De Instalación Y Funcionamiento

4 Intended use

Wilo-Drain STS 40 submersible pumps are suitable
for pumping sewage, waste water and clean fluids
containing solid particles of up to 40 mm diameter
from shafts, pits and containers.
They are used for the following applications:
• Domestic drainage
• Sewage and water supply
• Environment and waste water treatment
• Industrial and process engineering
NOTE: Follow the locally applicable regulations for
the intended application.
The pumps are usually installed flooded
(immersed) and can only be installed vertically,
whether fixed or mobile.
Submersible motor pumps with connection lines
of less than 10 m are only approved (according to
EN 60335) for use within buildings, not for out-
door use.
DANGER! Risk of fatal injury!
The pump may not be used to empty swimming
pools / garden ponds or similar locations if there
are people in the water.
WARNING! Health risk!
Owing to the materials used, the pumps are not
suitable for drinking water! Dirty water poses a
risk to health.
5.2

Technical data

Permissible fluid components:
Max particle size:
Mains voltage:
Mains frequency:
Protection class:
Speed:
Max. current consumption:
Power consumption P1:
Rated motor power P2:
Max. flow rate:
Max. delivery head:
Operating mode S1:
Operating mode S3 (optimum):
Recommended switching frequency: 20/h
Max. starts per hour:
Nominal diameter of the pressure
port:
Permissible temperature range of the
pumped liquid:
Max. immersion depth:
Noise level at min. level:
Oil filling:

5.3 Scope of delivery

Pump is delivered with
• 5 or 10 m electrical connection cable (depending
on version),
• single-phase version with mains plug (CEI 23-5),
• three-phase version with free cable end.
Installation and operating instructions Wilo-Drain STS 40
Example:
STS
40
/8
A
1-230
-50
-2
5M KA
Slightly acidic / slightly alkaline, maximum chloride content 150 mg/l
(for 1.4301 / AISI 304)
40 mm
1~230 V, ± 10 %, 3~400 V, ± 10 %
50 Hz
IP 68
Max. 2900 /min (50 Hz)
See name plate
See name plate
See name plate
See name plate
See name plate
200 operating hours per year
Intermittent duty, 25 % (2.5 min. operation, 7.5 min. pause).
50/h
See type key
+3 to 35 °C
5 m
< 70 db(A)
ELFOLNA DS 22 or equivalent, approx. 0,4 l
CAUTION! Danger of material damage!
Pumping materials which are not approved can
lead to damage to the product.
The pumps are not suitable for water containing
coarse impurities such as sand, fibres or flam-
mable liquids, or for use in areas at risk of explo-
sion.
Use of the product as intended also means follow-
ing these instructions.
Use over and beyond the use described is not use
as intended.

5 Product information

5.1 Type key
STS 40/8 A 1-230-50-2-5M KA
STS 40/10 3-400-50-2-10M KA
Series: ST = Sewage Technology
S = Stainless Steel Motor
Nominal diameter of the discharge port [mm]:
40 = Rp 1½
Max. delivery head [m] for Q=0m³/h: 8, 10
A = with float switch,
- = not specified: without float switch,
Mains voltage: 1~230 V, single-phase motor,
3~400 V, three-phase motor
Mains frequency [Hz]
2 poles
Length of electrical cable [m]: 5, 10
• Connected float switch (Wilo-Drain STS 40),
• Installation and operating instructions
English
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