Emerson KEYSTONE V30 Series Installation And Operation Manua

KEYSTONE SERIES V30 / V32 MARINE HP BUTTERFLY VALVES
INSTALLATION AND OPERATION MANUAL
Before installation these instructions must be fully read and understood
1 GENERAL
Suggested installation orientation is with valve
shaft horizontal or inclined from vertical. Unless
otherwise recommended by Emerson, mount
the valve in the preferred direction with the
directional arrow pointing to the lower pressure
side so that the front face of the disc will be
upstream when the valve is in the closed position.
Thermal insulation of the body is mandatory for
operating temperatures above 200 °C (392 °F).
The Keystone marine high performance butterfly
valve offers the following body styles: Series V30
for wafer style and Series V32 for lug style.
2 INSPECTION
2.1
Carefully remove the valve from the shipping
package (box or pallet) to avoid any damage to
the valve and, in the case of automated valves,
to the electric or pneumatic/hydraulic actuator
or instrumentation.
2.2
Prior to installation, clean the inside of the
valve. Insure that there are no solid objects
such as pieces of wood, plastic or packing
materials within the valve or on the valve seat.
2.3
Inspect the seat and disc edge to insure that
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they were not damaged in handling. This is
especially important in the case of valves with
'fail- open' actuators.
2.4
Confirm that the materials of construction
listed on the valve body are appropriate for the
service intended and are as specified.
2.5
Locate the directional arrow on the valve name
plate that defines the preferred mounting
orientation in respect to the pressure. In most
cases, the valve is properly installed when the
actual fluid flow or high pressure is acting on the
front face of the disc when the valve is closed.
2.6
Ensure that the packing seal cover screws are tight.
CAUTION
The valve should be installed in the closed position
to insure that the seat and disc are not damaged
during installation. Particular care should be taken
with valves equipped with 'fail open' actuators.
Failure to insure proper handling may result in
damage to the valve. If the pipe is lined, confirm
that the disc rotation does not contact the lining
during the opening stroke. Failure to confirm that
the disc rotation does not contact the lining may
result in damage to the valve.
IMPORTANT
Whenever possible, install the valve with the shaft
in the horizontal position and, if possible, with the
cast-in disc stop located top-side of the pipe. If the
shaft cannot be positioned horizontally, position
the shaft so that it is not on the vertical centerline
in a horizontal pipe run. This will minimize any
depositing of solid particles present in the fluid
into the lower bearing.
Keystone is either a registered trademark of Emerson
International Service AG or its affiliates in the United
States and/or other countries. All other brand names,
product names, or trademarks belong to their
respective holders.
© 2017 Emerson. All rights reserved.
VCIOM-02541-EN 20/08