Flowserve Valtek Torex TX IOM User Manual
USER INSTRUCTIONS
Valtek Torex TX Control and shut-off valves
Butterfly Valves
VLEEIM4143-02 09.10
Installation
Operation
Maintenance
Experience In Motion
Contents
SAFETY
General 1
Lifting 2
Receiving inspection 3
Installation 4
Flange gaskets 5
Starting up 6
List of materials and spare parts 7
Ordering of spare parts 8
Maintenance 9
To remove the valve from the pipework 9.1
To change an Inconel seat ring 9.2
To replace PTFE seat rings 9.3
To adjust a new seat ring in a valve with
manual operating lever or worm gear unit 9.4
To adjust the seat ring in a valve with
pneumatic actuator 9.5
To inspect and replace the upper stem seal: 9.6
Graphite type 9.6.1
Boxpacking Zebra-CL™ 9.6.2
Boxpacking SafeGuard 9.6.3
To change the packing, item no. 9 9.7
To replace the stem and valve disc 10
Fitting the actuator to the valve 11
SAFETY
- Assess all the risks to eliminate the risk of personal
injury and material damage. Read these instructions
thoroughly!
- Always use the necessary protective equipment
and comply with applicable safety directives when
working with hazardous or hot/cold medium.
- Never operate a valve without first ensuring that there
is no risk of crush injuries. The risk is highest with
automatic valves.
- Take necessary safety precautions to prevent
unintentional manoeuvre - i.e to atmosphere.
- Never dismantle a valve or part of a valve without
ensuring that the line is free of pressure and any
content.
- Always check that the valve type and material is
suitable for its intended use. This applies especially to
highly oxidising and corrosive medium. Observe also
the risk of erosion and explosion as well as decaying
medium. If in doubt, always request a written
recommendation from NAF AB.
Torex TX VLEEIM4143-02 09.10
The product codes of Torex TX are specified in
VLxxTB41431):
1)
xx = Language, i.e EE = English
2. Lifting
All lifting must be carried out on the valve itself and not
on the actuator.
3. Receiving inspection
All valves leaving our works are inspected and tested in
accordance with the relevant requirements or in accordance with the special provisions specified by the purchaser.
Valves equipped with actuators are subjected to
functional testing and are adjusted in such a manner that
every unit is completely ready for direct installation in the
pipework.
However, in view of damage that may have occurred
during transport, it is advisable that receiving inspection
be carried out as follows
- Check that the valve delivered is correct in terms of
type, size, equipment, etc.
- Examine the valve, actuator and valve positioner
regarding possible damages.
- Operate the valve to the limits of its travel to
check the settings of the limit stops.
1. General
The instructions and list of spare parts in the
succeeding apply to Torex butterfly valves in
accordance with catalogue sheet VLEETB4143.
2
Torex TX VLEEIM4143-02 09.10
4. Installation
Before installing the valve, ensure that the pipework is
free from impurities, that the pipe ends between which
the valve is to be installed are parallel and are correctly
aligned, and that the distance between the pipe ends corresponds to the valve length, including gaskets.
The valve should not be used for contraction or aligning
incorrectly pipe lines (see Fig. 2).
Wrong installation Correct installation
Fig 2: Ensure that the pipe ends align and have the
correct distance
Torex TX valves can be installed in any position,
regardless of the direction of flow
recommend that, if installed in a horizontal run of pipe,
the valve should be mounted with the stem horizontal,
in order to prevent the accumulation of dirt and other
impurities around the stem ends.
. However, we
6. Starting up
Before starting up, flush the pipework - with all valves
in the open position - so that any impurities that may
damage the sealing surfaces of the valve and impede its
operation will be flushed away.
The butterfly valve body is marked with an arrow which
indicates that best tightness thereby that the differential
pressure gives an additional torque in the closing
direction while a differential pressure towards the plane
side gives an extra torque in the opening direction.
Locate the valve so that it will be easily accessible
for inspection and service, particularly if the valve is
equipped with an actuator and a valve positioner.
Ensure that the valve is installed so that the connected
pipe ends do not obstruct the free movement of the disc
when the valve is operated.
The pipes should be supported on each side of the
butterfly valve, in order to relieve the valve of loads and
avoid vibrations.
5. Flange gasket
Gaskets to the dimensions specified in SS 359, DIN 2690
or ANSI B 16.5, 1988, Table E1, Figure E2, Class 150 can
be used.
3
Loading...