Pfeiffer Chemie-Armaturenbau GmbH
Hooghe Weg 41 • 47906 Kempen
Phone 02152 2005-0 • Fax 02152 1580
Page 3 of 8
Operating instructions
BA 28y-01_EN
Edition June 2004
0 Introduction
These instructions are designed to assist the user during installation, operation and maintenance of piggable ball valves from the
Series 28y and Series 28z.
These instructions apply only to the piggable ball valve itself. In addition, refer to the instructions of the mounted actuator.
Note
The WARNING and CAUTION notes must be strictly adhered to.
Otherwise this may lead to personal injury and
equipment damage
and the manufacturer’s warranty may become void.
Please contact the manufacturer if you have any queries, see section 8 for contact address.
1 Intended
use
After installing the valve in the pipeline and connecting the actuator to the control equipment, these piggable ball valves are designed
exclusively for shutting off or controlling media (often corrosive) within the permissible pressure and temperature ranges.
The permissible pressure and temperature ranges for these piggable ball valves are specified in the data sheets <TB28y_EN or
TB28z_EN>.
Danger
Do not operate a piggable ball valve when its permissible pressure/temperature rating is not sized for the operating
conditions specified in the data sheets <TB28y_EN or TB28z_EN>.
Failure to follow these safety precautions may result in personal injury and can damage equipment installed in
the pipeline.
Interpretation of declaration to the Directive 94/9/EC
Note
Pfeiffer valves have no own potential ignition source after testing the hazardous ignition in accordance to
DIN EN 13463-1:2002. Therefore Pfeiffer valves do not come under the directive 94/9/EC.
Relating to this directive a CE-marking is not permissible.
The valve could be incorporated into potential compensation of plants independent of the directive, valid for metallic parts
in hazardous areas.
Observe the restrictions in the specified data sheets if the piggable ball valve is intended for throttling services.
The piggable ball valve body may contain small amounts of medium in the closed and open position:
In the case that the heat in the surroundings where the valve is installed can heat up the process medium in the valve, use the
piggable
ball valve version
with a relief bore
to prevent an impermissible rise in pressure.
Observance of section 2 <Safety instructions> is presumed for the Intended use.
2 Safety
instructions
2.1
General safety instructions
For piggable ball valves, the same safety regulations apply as for the pipelines in which they are installed, as well as for the control
equipment connected to the actuator. These instructions only specify those safety instructions which need to be additionally observed
concerning piggable ball valves.
Additional safety instructions are specified in the instructions for the actuator assemblies.
2.2
Safety instructions for the operator
The manufacturer does not assume any responsibility. Therefore, on using the piggable ball valve, make sure the following instructions
are observed:
Ö
The valve is to be used only for its intended use as described in section 1.
Warning
Preventing misuse of the piggable ball valve:
It is especially important to make sure that the selected materials for wetted parts in the piggable ball valve are suitable for
the media used as well as the prevailing pressures and temperatures.
Failure to follow these safety precautions may result in personal injury and can damage equipment installed in
the pipeline. The manufacturer does not assume any final responsibility.
Warning
Protection against using the wrong pig:
The valve shape and size have been adapted to the pigs to be used according to the customer specifications. In case
other pigs are to be used, Pfeiffer must check and confirm the valve’s suitability first.
Failure to follow these safety precautions may result in personal injury and can damage equipment installed in
the pipeline.
