Flowserve 1878 Double-Disc Gate Valve User Manual
Page 15
15
10.0
STORAGE REQUIREMENTS
The valves have been shipped in the closed position. Upon receipt of the valves at
their destination, the crates should be examined thoroughly for signs of mishandling
or damage during shipment. With the valves strapped to the shipping skids, all
bonnet and gland bolting should be checked to ensure that the joints are secure.
Bolting on occasion may become loosened during shipment and handling.
The valves should then be stored in a sheltered area to protect them from the
elements, dirt, and foreign material. They should not be exposed to the
atmosphere, uncrated or removed from the shipping skids except in a clean area
just prior to installation.
If the valves are not to be installed within a short period of time after receipt, and will
require long-term storage, the following should be adhered to:
(a)
They should be stored in an upright position, stem vertical, and where there
is minimal temperature variation and the temperature does not drop below
50
°F.
(b)
In their storage condition, the valves should be wrapped in polyethylene to
prevent accumulation of dust or foreign matter.
(c)
A check-off tag should be affixed to each unit and should be dated and
signed off by the inspector witnessing the inspection that is recommended at
6-month intervals.
(d)
The shelf life for grafoil and graphite filament packing and spiral wound
gaskets is indefinite when stored under the proper conditions.