Wilo TWI User Manual

2 50-18-002-0817
1 General Information
1.1 Uses
Submersible pumps of the TWI series are suitable for
drawing groundwater from deep wells, for industrial use and
for supplying water.
1.2 Product Range
1.2.1 Rating Range
1.2.2 Technical Characteristics
• Temperature range: 38°F to 85°F
• Max. Flow rate: 115 GPM
• Max. immersion depth: 900 Ft.
• Maximum permissible sand content: 50 g/ml
• Pressure pipe connection: 1” to 2”, depending on size
of pump
• Max. pump lift: to 1300 ft, depending on size of pump
1 Safety
2.0 Danger symbols used in these operating instructions
Safety precautions in these operating instructions which, if
not followed, could cause personal injury are indicated by
the symbol:
when warning of electric voltage with
The following symbol is used to indicate that by ignoring
the relevant safety instructions, damage could be caused to
the pump/machinery and its functions:
ATTENTION!
2.2 Staff Training
The personnel installing the pump must have the
appropriate qualications for this work.
2.3 Risks incurred by failure to comply with the safety
precautions
Failure to comply with the safety precautions could result in
personal injury or damage to the pump or installation.
Failure to comply with the safety precautions could also
invalidate any claims for damages.
In particular, lack of care may lead to problems such as:
• Failure of important pump or machinery functions,
• Personal injury due to electrical, mechanical and
bacteriological causes.
• Damage to property.
2.4 Safety precautions for the operator
Existing regulations for the prevention of accidents must
be followed. Dangers caused by electrical energy are to be
excluded. Directives issued by the local electrical code and
the local electricity supply companies are to be observed.
2.5 Safety information for inspection and assembly
The operator must ensure that all inspection and installation
work is carried out by authorised and qualied specialists
who have carefully studied these instructions. Work on
the pump/machinery should only be carried out when the
machine has been brought to a standstill.
2.6 Unauthorized modication and manufacture of spare
parts
Alterations to the pump or installation may only be carried
out with the manufacturer’s consent. The use of original
spare parts and accessories authorised by the manufacturer
will ensure safety. The use of any other parts may invalidate
claims invoking the liability of the manufacturer for any
consequences.
2.7 Unauthorized operating methods
The operating safety of the pump or installation supplied
can only be guaranteed if it is used in accordance with
paragraph 1 of the operating instructions. The limiting
values given in the catalogue or data sheet must neither be
exceeded nor allowed to fall below those specied.
3 Transport and interim storage
Upon delivery, please check that the device has survived
the journey undamaged. If you nd any damage, the normal
routine measures are to be initiated with the shipping
company.
During transport and in storage the pump must be
protected against moisture, frost and mechanical damage.
Store horizontally in shockproof places.
4 Product and accessory description
4.1 Pump
• Multistage submersible pump with radial or semi-axial
impellers, depending on size of pump, for use in 3” & 4”
bore- holes.
• With built-in check valve.
4.2 Motor
• Consult motor manufacturer’s documentation for more
information.
ATTENTION!

Wilo TWI Specifications

General

Brand	Wilo
Model	TWI
Category	Water Pump
Language	English