Pfeiffer Chemie-Armaturenbau GmbH
Hooghe Weg 41 • 47906 Kempen
Phone 02152 2005-0 • Fax 02152 1580
Page 4 of 8
Operating instructions
BA 28y-01_EN
Edition June 2004
Ö
An actuator unit mounted subsequently onto the valve must fit the piggable ball valve properly and its final positions, especially
the open position, need to be correctly adjusted.
Ö
Make sure that the pipeline and control equipment have been installed correctly and are checked at regular intervals. The valve
body wall thickness must be designed to take into account an additional load Fz in the usual order (Fz =
π
/4•DN²•PS) for a
correctly sized pipeline.
Ö
The valve needs to be connected correctly to the pipeline and to the control equipment.
Ö
Make sure the usual flow velocities are not exceeded in continuous service in this pipeline. Exceptional operating conditions such
as oscillations, water hammering, cavitation and large proportions of solid matter in the process medium, especially abrasive,
must be clarified beforehand with the manufacturer.
Ö
Piggable ball valves that are operated at temperatures greater than +50°C or lower than -20°C must be protected, together with
the pipeline connections, against being touched.
Ö
Only for pressure-containing pipelines and pigging pipelines: The valve must be operated and service by trained personnel.
2.3 Particular
hazards
Danger
Prior to removing the piggable ball valve from the pipeline,
relieve pressure entirely in the pipeline
to ensure the
process medium cannot escape uncontrollably from the pipeline.
Warning
Should it be necessary to remove a piggable ball valve from the pipeline, process medium may escape from the pipe or
out of the piggable ball valve. In the case of process media that can damage health or are dangerous, drain the pipeline
completely before removing the piggable ball valve from the pipeline.
Take special care concerning
any remaining media that may still be in the pipeline
or
have
collected in the
cavities of the valve
.
Warning
Only unscrew or loosen any screws or bolts connecting the body parts after the valve has been removed from the
pipeline. Tighten the screws on reassembly with a torque wrench according to repair instructions <EB28y_EN or
EB28z_EN>.
Warning
For piggable ball valves intended for dead-end service:
During standard operation, in particular, with gases or hot and/or dangerous media,
mount a blank flange at the free
end connection
or ensure that the piggable ball valve is
properly protected against unauthorized
operation
.
Warning
If a piggable ball valve used for dead-end service must be opened in a pressurized pipeline, special care must be taken
to ensure that
any process media escaping under pressure
do not cause any damage.
2.4
Designation of the piggable ball valve
The designation of the piggable ball valve includes the following details:
Details
Designation
Comments
Manufacturer
Pfeiffer
Address, see section 8 <Information>
Valve type
BR (and number)
e.g. BR 28y = Series 28y, see Pfeiffer catalog
Body material
e.g.:
1.4571
Material number acc. to DIN EN 10272
Size
DN (and number)
Value in mm, e.g. DN50
Maximum pressure
PN (and number)
Value in bar at room temperature
Perm. temperature
TS (and number)
Perm. pressure
PS (and number)
PS and TS are associated values at maximum permissible operating
temperature and maximum permissible operating pressure.
203
0153
/001
/001
Valve No. into the Item
Item in order
Order
Serial no.
e.g.:
2030153/001/001
Year of manufacture (e.g. 203=2003)
year of manufacture
e.g.:
2003
On request of customer the year of manufacture is stamped on the
valve.
Conformity
CE
Conformity is certified separately by the manufacturer
Identification no.
0035
Notified body as per EU Directive = TÜV Anlagentechnik GmbH
Direction of flow
Î
Note
: see note in section 4.2 <Installation instructions>
Table 1 – Designation of the piggable ball valve
Keep the labeling on the valve body and on the nameplate to ensure that the valve can be identified at all times.
