KEYSTONE
OPERATING AND SAFETY INSTRUCTIONS
PED - RESILIENT SEATED BUTTERFLY VALVES F320/322
Please read these instructions carefully.
HAZARD POTENTIALS
• Disregarding of instructions
• Improper use of product
• Insufficiently qualified personnel
PRECAUTIONS
WARNING
For safety reasons, it is important to take the
following precautions before you start work on
the valve:
1. Personnel making any adjustments to the valves
should utilize suitable equipment. All required
personal protection means should be worn.
2. The line must be depressurized before installing
the valve. In case of dangerous pipeline fluids,
the pipeline should be drained and flushed
properly with an appropriate cleaning fluid.
3. Personnel trained in all aspects of manual and
mechanical handling techniques must carry
out handling of all valves.
4. Misuse of the valve is not allowed.
For example: the valve, handles, actuators or
other parts may not be used as ‘climbing tools’.
5. Ensure the valve pressure/temperature
specification as indicated on the identification
label, is within the pressure/temperature
limits of the application. A full pressure/
temperature diagram can be obtained from
the Product Manual. With the use of the figure
and trim number on the valve’s identification
label, the correct diagram can be found.
6. Ensure that valve materials are compatible
with the pipeline fluid.
7. The body material is ductile iron, which is a
known brittle material and heavy impacts such
as blows with a steel headed hammer should
be avoided. This is particularly important for
applications between 0 °C and -28 °C.
8. The normal shelf life of the F320/322 valve
seat is 5 years under clean, dry ambient and
conditions with UV exposure prior to installation.
9. Tighten all flange bolts as per the nominated
flange standards using the diagonal sequence
method.
Before installation, these instructions must be fully read and understood
Product designation
Max. permissible working pressure
Explosive equipment classification
Nominal
diameter
Trim number
Body material
Min/Max
temperature
limits in °C
Mass
Year of construction
Identification number of
notified body
TAGPLATE - for NBR seated valves
TAGPLATE - for EPDM seated valves
© 2017 Emerson. All Rights Reserved.
Emerson.com/FinalControl
VCOSI-00771-EN 19/06
Ensure that valve materials are compatible with
the pipeline fluid.
Valve application to be within the pressure/
temperature limits indicated in the P/T diagram
of the Product Manual.
If in doubt contact factory.
Check the valve’s functionality on a regular basis.
