Instruction Manual
D104480X012
HP Control Valve Startup Trim
July 2019
2
Description
The Fisher HP Startup Trim kits are available for NPS 8 and larger sizes and include options for hydro testing, flushing,
and chemical cleaning of the system. The hydro kit is intended to be used so that the upstream piping can be tested at
the required pressure for body and inlet piping pressure class without over pressurizing any attached lower pressure
class piping or equipment downstream. The flushing kit allows for pipes to be cleaned upstream and downstream of
the valve by allowing dirt, scale, or debris to pass through the valve without causing damage to the valve trim used in
normal operation. The chemical cleaning kit is used when cleaning the pipeline with a low velocity, chemical flush of
the pipeline.
Educational Services
For information on available courses for Fisher HP and HPA valves, as well as a variety of other products, contact:
Emerson Automation Solutions
Educational Services - Registration
Phone: 1-641-754-3771 or 1-800-338-8158
E-mail: [email protected]
emerson.com/fishervalvetraining
Valve Installation
Observe all installation warnings, cautions and notes provided in the Fisher HP and HPA Control Valve Instruction
Manual (
). Follow the instructions provided in the Fisher HP and HPA Control Valve Instruction Manual
for valve assembly installation
Maintenance
WARNING
Avoid personal injury or property damage from sudden release of 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
Always wear protective gloves, clothing, and eyewear when performing any maintenance operations.
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
on 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 spring precompression.
D
Use lock‐out procedures to be sure the above measures stay in effect while you work on the equipment.
D
The valve packing box may contain process fluids that are pressurized, even when the valve has been removed from the
pipeline. Process fluids may spray out when removing the packing hardware or packing rings, or when loosening the
packing box pipe plug.
D
Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
