Instruction Manual
D103416X012
SS-84PSV4 Valve
September 2022
3
Installation
When welding buttweld end valves in line, it is recommended to remove the control valve trim in order to prevent
damage to trim parts. If the trim cannot be removed, the valve should be left in the fully open position. Key numbers in
installation procedures are shown in figure 8 unless otherwise indicated.
WARNING
Always wear protective gloves, clothing, and eyewear when performing any installation operations to avoid personal
injury.
Personal injury or equipment damage caused by sudden release of pressure may result if the valve assembly is installed
where service conditions could exceed either the valve body rating or the mating pipe flange joint rating. To avoid such
injury or damage, provide a relief valve for overpressure protection as required by government or accepted industry codes
and good engineering practices.
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.
WARNING
The valve configuration and construction materials were selected to meet particular pressure, temperature, pressure drop,
and controlled fluid conditions indicated when the valve was ordered. Responsibility for the safety of process media and
compatibility of valve materials with process media rests solely with the purchaser and end‐user. To avoid possible personal
injury and because some valve/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
The valve drive shaft is not necessarily grounded to the pipeline when installed. Personal injury or property damage could
result from an explosion caused by a discharge of static electricity from valve components if the process fluid or the
atmosphere around the valve is flammable. If the atmosphere around the valve or the process fluid is flammable,
electrically bond the drive shaft to the valve.
Note
Standard graphite packing is composed of all conductive graphite ribbon packing. Alternate shaft‐to‐valve body bonding is
available for hazardous service areas where the standard packing is not sufficient to bond the shaft to the valve (see the following
step).
1. If the valve is to be stored before installation, protect the buttweld ends and keep the valve body cavity dry and free
of foreign material.
2. The valve is normally shipped as part of a control valve assembly, with an actuator mounted on the valve. If the
valve and actuator have been purchased separately or if the actuator has been removed, mount the actuator
according to the Actuator Mounting section and the appropriate actuator instruction manual.
3. Standard flow direction is forward flow, spherical face of the ball is upstream.
4. Install the valve in a horizontal pipeline with the drive shaft in the horizontal position.
NOTICE
Do not allow the valve to be installed in the pipeline with the drive shaft in the vertical position because of excessive wear
to valve component parts.
