Flowserve 50165 Nordstrom Figure - Manual (Page 10)

Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05
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Installation
Introduction
A most critical point in time in the life of an industrial valve is the moment of installation. The possibili-
ties for degradation of the valve are numerous. Conversely, the exercise of proper care in this process
will assure increased probability of trouble-free valve service.
The valve industry has prepared this Section in order to provide useful information, warnings and
reminders, in a format that will be helpful to all concerned. A judicious selection of these pages,
delivered to the installation site with the valve itself, will provide the opportunity for the person having
the greatest need to know to be informed or reminded of what is most important at the time such
information can be the most useful.
Inspection
The testing and inspection required by applicable standards and specifications make it generally reason-
able to assume that a new valve, about to be installed in a piping system, has been properly designed
and manufactured. Nevertheless, it is important to recognize that in the transport, handling and storage
of a valve between the time of manufacture and the time of installation, there are numerous possibilities
for accident or error that could adversely affect valve performance.
It is therefore important to determine that the valve is in satisfactory condition before installation. The
following points are generally applicable and may be helpful in avoiding subsequent valve problems.
a) Carefully unpack the valve.
b) Make a point of noting any special warning tags or plates attached to or accompanying the valve
and take any appropriate action.
c) Check the valve for any marking indicating flow direction. Make sure that the valve is installed in the
proper flow orientation when a flow direction is indicated on the valve.