Idiomas disponibles
Idiomas disponibles
PREFACE
Using this manual
This manual is intended to be used as a work of reference for
professional, well trained and authorised users to be able to
safely install, use, maintain and repair the product mentioned
on the cover of this document.
Pictograms and symbols
The following pictograms and symbols are used in this manual:
TIP
Suggestions and recommendations to simplify
carrying out tasks and actions.
ATTENTION
A remark with additional information for the user. A
remark brings possible problems to the user's
attention.
CAUTION!
Procedures, if not carried out with the necessary
caution, could damage the product, the workshop or
the environment.
WARNING!
Procedures which, if not carried out with the
necessary caution, may damage the product or
cause serious personal injury.
WARNING!
Fire hazard! Important warning to prevent fire.
WARNING!
Explosion hazard! Important warning to prevent
explosions.
Personal protective equipment (PPE)
Instruction to use respiratory protection when you
do service, maintenance and repair jobs, as well as
during functional testing. We recommend to use a
half-face respirator according to EN 149:2001 +
A1:2009, class FFP3 (Directive 89/686/EEC).
Personal protective equipment (PPE)
Instruction to use protective gloves when you do
service, maintenance and repair jobs.
Text indicators
Listings indicated by "-" (hyphen) concern enumerations.
Listings indicated by "•" (bullet point) describe steps to
perform.
1
INTRODUCTION
1.1
Identification of the product
The identification plate contains, among other
things, the following data:
- product name
- serial number
1.2
General description
The LFA is a flexible extraction arm with a rotatable hood
RotaHood that is 360° rotatable. The hood contains a throttle
valve and a focus extraction spoiler that directs the air into the
hood.
There are two types of arms:
1.2.1
LFA 3.0 | LFA 4.0
These arms are provided with the DeBlock advanced friction
system for light, user-friendly positioning of the arm.
0507270020/010921/A LFA 3.0 | 4.0 | 3.1 | 4.1
1.2.2
LFA 3.1 | LFA 4.1
These arms are provided with the Balance spring balance
system for ultra-light, user-friendly positioning of the arm.
1.3
Options and accessories
For more ease of use you can select one of the following
accessories:
- WL | Working light
- WL-AST | Working light + automatic start/stop
- WCS | Welding cable sensor
1.4
Product combinations
The LFA arms are suitable for mobile and stationary
welding fume extraction systems.
Refer to Fig. I on page 59 for details.
They are also suitable for use in central fume extraction
systems
.
1
1.5
Technical specifications
Physical dimensions and properties
Arm length:
- LFA 3.0 | LFA 3.1
- LFA 4.0 | LFA 4.1
Diameter
Material:
- tubes and hood
- hoses
Weight:
- LFA 3.0 | LFA 3.1
- LFA 4.0 | LFA 4.1
Performance
Recommended airflow
1.6
Working reach
Refer to Fig. II on page 60.
1.7
Pressure drop
Refer to Fig. III on page 60.
1.8
Ambient and proces conditions
Process temperature:
- min.
- nom.
- max.
Max. relative humidity
Outdoor use allowed
1.
Systems with a central extraction duct, with or without filtration
- 3 m
- 4 m
Ø 203 mm
- polypropylene copolymere with
UV stabilization
- glass fibre reinforced PVC +
metal springs
- 15 kg
- 17 kg
max. 1600 m³/h
5°C (41°F)
20°C (68°F)
45°C (113°F)
80%
no
EN | 2
