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SS-84PSV4 Valve
September 2022
Lifting Valve Only
To lift the valve, insert 3/4-10 thread size hoist rings into the two tapped holes on the top of the valve body. These two
tapped holes will carry most of the weight, but the assembly must be balanced using one or more straps underneath
the valve bottom flange (key 5), as shown in figure 2. The assembly can now be lifted using a hoist capable of leveling
the 3 lifting points.
Lifting Actuator Only
The actuator with accessories shall be lifted by the casing flange as shown in figure 2. Figure 2 shows L-shaped flanges
attached to the casings. An alternative casing lift method is to use 3/8 inch eyebolts positioned 180 degrees apart. Use
protective pads between the strap(s) and the casing to help prevent damage to the painted surface.
Maintenance
Valve parts are subject to normal wear and must be inspected and replaced as necessary. The frequency of inspection
and replacement depends upon the severity of service conditions.
Key numbers in this procedure are shown in figure 8, unless otherwise noted.
WARNING
The Vee‐ball closes with a shearing, cutting motion, which could result in personal injury. To avoid injury, keep hands, tools,
and other objects away from the Vee‐ball while stroking the valve.
Avoid personal injury or damage to property from sudden release of process pressure or uncontrolled process fluid. Before
performing any maintenance operations:
D Do not remove the actuator from the valve while the valve is still pressurized.
D Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the
actuator cannot suddenly open or close the valve.
D Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure
from both sides of the valve. Drain the process media from both sides of the valve.
D Vent the power actuator loading pressure and relieve any actuator spring precompression.
D Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment.
D Always wear protective gloves, clothing, and eyewear when performing any maintenance operations.
D The valve packing area may contain process fluids that are pressurized, even when the valve has been removed from the
pipeline. Process fluids may spray out under pressure when removing the packing hardware or packing rings.
D Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
Packing Maintenance
Key numbers in this procedure are shown in figure 8, unless otherwise noted. A detailed view of the packing is also
shown in figure 7.
Refer to the Parts List section of this manual for individual parts.
If the packing is relatively new and tight on the drive shaft (key 9), and if tightening the packing nuts (key 27) does not
stop leakage, it is possible that the drive shaft is worn or nicked so that a seal cannot be made. If the leakage comes
from the outside diameter of the packing, it is possible that the leakage is caused by nicks or scratches on the packing
box wall. Inspect the drive shaft and packing box wall for nicks or scratches while performing the following procedure.
6
Instruction Manual
D103416X012
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