Nederman TAV 50 Manual Del Usuario página 17

Technical documentation contains the information re-
quired to maintain product safety.
Thank you for using a Nederman product!
The Nederman Group is a world-leading supplier and
developer of products and solutions for the environ-
mental technology sector. Our innovative products
will filter, clean and recycle in the most demanding of
environments. Nederman's products and solutions will
help you improve your productivity, reduce costs and
also reduce the impact on the environment from in-
dustrial processes.
Read all product documentation and the product iden-
tification plate carefully before installation, use, and
service of this product. Replace documentation imme-
diately if lost. Nederman reserves the right, without
previous notice, to modify and improve its products
including documentation.
This product is designed to meet the requirements
of relevant EC directives. To maintain this status, all
installation, maintenance, and repair is to be done
by qualified personnel using only Nederman original
spare parts and accessories. Contact the nearest au-
thorized distributor or Nederman for advice on tech-
nical service and obtaining spare parts. If there are
any damaged or missing parts when the product is de-
livered, notify the carrier and the local Nederman rep-
resentative immediately.
This document contains important information that
is presented either as a warning, caution or note, ac-
cording to the following examples:
Warnings indicate a potential hazard to the
health and safety of personnel, and how that
hazard may be avoided.
Cautions indicate a potential hazard to the
product but not to personnel, and how that
hazard may be avoided.
Notes contain other information that is import-
ant for personnel.
TAV 50 is a valve for automatic opening and closing of
a vacuum outlet linked to a central vacuum system. It
comes in six different models, see
valves are normally automatic, they open and close
governed by a control device.
Figure 3 shows TAV 50 in the open position. Com-
pressed air turns the blade when an air signal is ap-
plied to the connection nipple.
closed position. The return spring turns the blade back
to this position as soon as the air signal is removed.
The nylon sealing rings supported by the backup rings
seal off against the blade in the open and closed posi-
tions. The backup rings are made of neoprene but are
also available in Viton for extremely difficult applica-
tions.
The control device can be a solenoid valve for electric
control or a flow sensing valve sensing the flow to a
compressed air tool. TAV 50 PC (basic version) is not
fitted with its own control device but an external 3-
port valve is available as an option, see
Figure 8, Figure 9 and ,Figure
pressed air powered except for TAV 50 MA, it requires
no compressed air but is equipped with a lever for the
operation of the valve.
TAV 50 can be fitted with a micro switch to control
the vacuum unit, see Chapter 9
sensing valve (FV) is described in
Sensing Valve.
The current sensing device, item A in
ure Models, is designed as a control device
for TAV 50. For more information, see
www.nederman.com.
Figure 1 shows a sectioned TAV 50.
1 Housing, lower part
2 Housing, upper part
3 Valve blade
4 Sealing ring
5 Backup ring
6 Arm
7 Piston
8 Cylinder (integrated into lower part)
9 Return spring
10 Connection nipple
11 Microswitch holder
Figure 2 shows the most common control devices.
1 3-port valve for remote control of TAV 50 PC in the
basic version
2 Lever (MA)
3 Flow sensing valve (FV)
4 Solenoid valve (MV)
5 Sensor ring, solenoid valve and connection box
(Part of MV-W)
Figure Models. The
Figure 4 shows the
Figure Models,
10. All versions are com-
Accessories. The flow
Chapter 8 Flow
Fig-
17