Flowserve Valtek Mark One K-Bellows Sealed Globe Valves - Manual (Page 2)

Valtek Mark One K-bellows
2
1. GENERAL INFORMATION
1.1 Using
The following instructions are designed to
assist in disassembling, reassembling and
troubleshooting Valtek valves equipped with a
K-Bellows metal bellows seal. Product users
and maintenance personnel should thoroughly
review this bulletin in conjunction with
Maintenance Instructions 1 (Mark One and Two
Control Valves) before installing, operating or
performing any maintenance on the valve. This
publication does not contain information on
Valtek positioners. Refer to the appropriate
Maintenance Instructions for installing,
maintaining, troubleshooting, calibrating, and
operating Valtek positioners. In most cases
Flowserve valves, actuators and accessories are
designed for specific applications (e.g. with
regard to medium, pressure, temperature). For
this reason they should not be used in other
applications without first contacting the
manufacturer.
1.2 Applicability
The following instructions are applicable to the
maintenance and installation of K-Bellows only.
This document should be used in conjunction
with the appropriate Installation, Operation and
Maintenance Instructions specific to the model
valve on which the bellows is installed.
1.3 Terms Concerning Safety
The safety terms DANGER, WARNING,
CAUTION and NOTE are used in these
instructions to highlight particular dangers
and/or to provide additional information on
aspects that may not be readily apparent.
DANGER: indicates that death, severe
personal injury and/or substantial
property damage will occur if proper
precautions are not taken.
WARNING: indicates that death, severe
personal injury and/or substantial
property damage can occur if proper
precautions are not taken.
CAUTION: indicates that minor personal
injury and/ or property damage can
occur if proper precautions are not
taken.
NOTE: indicates and provides additional
technical information, which may not be
very obvious even to qualified personnel.
Compliance with other, not particularly
emphasized notes, with regard to
transport, assembly, operation and
maintenance and with regard to
technical documentation (e.g. in the
operating instruction, product
documentation or on the product itself)
is essential, in order to avoid faults,
which in themselves might directly, or
indirectly cause severe personal injury
or property damage.
1.4 Protective Clothing
FLOWSERVE products are often used in
problematic applications (e.g. extremely high
pressures, dangerous, toxic or corrosive
mediums). In particular, valves with bellows
seals point to such applications. When
performing service, inspection or repair
operations always ensure, that the valve and
actuator are depressurized and that the valve
has been cleaned and is free from harmful
substances. In such cases pay particular
attention to personal protection (protective
clothing, gloves, glasses and respirator as
required).
1.5 Qualified Personnel
Qualified personnel are people who, on account
of their training, experience and instruction and
their knowledge of relevant standards,
specifications, accident prevention regulations
and operating conditions, have been authorized
by those responsible for the safety of the plant
to perform the necessary work and who can
recognize and avoid possible dangers.
1.6 Installation
DANGER: Before installation check the
order- no, serial- no. and/or the tag- no.
to ensure that the valve/ actuator is
correct for the intended application.
Special care should be taken to not
exceed the pressure rating of bellows
which may be lower than the pressure
class of the valve.
1. Do not insulate extensions that are provided
for hot or cold services.
2. Pipelines must be correctly aligned to ensure
that the valve is not fitted under tension.