ES Valve
Instruction Manual
December 2008
3
Table 2. Available Shutoff Classifications per
ANSI/FCI 70-2 and IEC 60534-4
Seating
Shutoff Class
Metal
IV (standard)
V
PTFE
VI
Check with your process or safety
engineer for any additional measures
that must be taken to protect against
process media.
If installing into an existing
application, also refer to the WARNING
at the beginning of the Maintenance
section in this instruction manual.
CAUTION
When ordered, the valve configuration
and construction materials were
selected to meet particular pressure,
temperature, pressure drop, and
controlled fluid conditions. Since
some body/trim material combinations
are limited in their pressure drop and
temperature ranges, do not apply any
other conditions to the valve without
first contacting your Emerson Process
Management sales office.
Before installing the valve, inspect the
valve and pipelines for any damage
and any foreign material which may
cause product damage.
1. Before installing the valve, inspect the valve and
associated equipment for any damage and any foreign
material.
2. Make certain the valve body interior is clean, that
pipelines are free of foreign material, and that the
valve is oriented so that pipeline flow is in the same
direction as the arrow on the side of the valve.
3. The control valve assembly may be installed in
any orientation unless limited by seismic criteria.
However, the normal method is with the actuator
vertical above the valve. Other positions may result
in uneven valve plug and cage wear, and improper
operation. With some valves, the actuator may also
need to be supported when it is not vertical. For
more information, consult your Emerson Process
Management sales office.
4. Use accepted piping and welding practices when
installing the valve in the line. Internal elastomeric
parts may stay in place during the welding
procedure. For flanged valves, use a suitable gasket
between the valve and pipeline flanges.
CAUTION
Depending on valve body materials
used, post weld heat treating may be
required. If so, damage to internal
elastomeric and plastic parts, as well
as internal metal parts is possible.
Shrunk-fit pieces and threaded
connections may also loosen. In
general, if post weld heat treating is to
be performed, all trim parts should be
removed. Contact your Emerson
Process Management sales office for
additional information.
5. With a leak-off bonnet construction, remove the
pipe plugs (keys 14 and 16, figure 8) to hook up the
leak-off piping. If continuous operation is required
during inspection or maintenance, install a
three-valve bypass around the control valve
assembly.
6. If the actuator and valve are shipped separately,
refer to the actuator mounting procedure in the
appropriate actuator instruction manual.
WARNING
Personal injury could result from
packing leakage. Valve packing was
tightened before shipment; however,
the packing might require some
readjustment to meet specific service
conditions.
Valves with ENVIRO-SEAL live-loaded packing or
HIGH-SEAL Heavy-Duty live-loaded packing will not
require this initial re-adjustment. See the Fisher
r
instruction manuals titled ENVIRO-SEAL Packing
System for Sliding-Stem Valves or Heavy-Duty
Live-Loaded Packing System (as appropriate) for
packing instructions. If you wish to convert your
present packing arrangement to ENVIRO-SEAL
packing, refer to the retrofit kits listed in the Parts
Kits sub-section near the end of this manual.
Maintenance
Valve parts are subject to normal wear and must be
inspected and replaced as necessary. Inspection
and maintenance frequency depends on the severity
of service conditions. This section includes
instructions for packing lubrication, packing
