Type ACE95jr
6
W8160
Shutdown
Installation arrangements vary, but in any installation
it is important to open and close valves slowly. When
shutting down the system, close the upstream supply
shutoff valve first. Refer to Figure 3.
Maintenance
Valve parts are subject to normal wear and must
be inspected and replaced as necessary. The frequency
of inspection and replacement of parts depends on the
severity of service conditions and the requirements
of local, state and federal regulations. Due to the
care Emerson takes in meeting all manufacturing
requirements, use only replacement parts manufactured
or furnished by Emerson.
All O-rings, gaskets and seals should be lubricated with
a good grade of general purpose lubricant and installed
gently rather than forced into position. Approved
lubricant, sealants and adhesive are
as follows:
Lubricant
: Dow Corning
®
111
Sealant
: Loctite
®
PST #592, Teflon
®
Tape
Adhesive
: Loctite
®
#222
Be certain that nameplates are updated to accurately
indicate any field changes in equipment, materials,
service conditions or pressure settings.
Monthly Maintenance
1. Visually inspect the unit to ensure tight connections,
tight seals and safe operation.
2. Observe the blanketing pressure.
3. Inspect the inlet pressure for the proper pressure
(stamped on the valve nameplate).
Annual Maintenance
1. Visually inspect the unit to ensure tight connections,
tight seals and safe operation.
2. Observe the blanketing pressure.
3. Inspect the inlet pressure for the proper pressure
(stamped on the valve nameplate).
4. Visually inspect valve for any external damage.
5. If there is evidence of leakage or unstable internal
motion, a rebuild with seal replacement and re-
lubrication may be in order.
Figure 4.
Spring Case, Adjusting Screw and Actuator Cap
SPRING CASE
(KEY 7)
VENT
(KEY 6)
LOCK NUT
(KEY 3)
ACTUATOR CAP
(KEY 1)
ADJUSTING SCREW
(KEY 2)
Dow Corning
®
is a mark owned of Dow Corning Corporation.
Loctite
®
is a mark owned of Henkel Corporation.
Teflon
®
is a mark owned of E.I. du Pont de Nemours and Co.
