Emerson Fisher HP, Инструкция по эксплуатации

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Instruction Manual
D104480X012
HP Control Valve Startup Trim
July 2019
3
Trim Removal
Observe all maintenance warnings, cautions and notes in the Fisher HP and HPA Control Valve Instruction Manual
(
D101634X012 ). Follow the Trim Removal instructions provided in the Fisher HP and HPA Control Valve Instruction
Manual. See figure 5 for the HP assembly drawing
Installation of Startup Trim Kits
Inspect the valve to ensure all parts and gaskets have been removed and the valve body is free from foreign debris.
Inspect all parts for defects and cleanliness; remove any burrs on metal valve components. Visually inspect the interior
of the valve for abnormal wear, signs of erosion, or scoring if the valve has been in service. Inspect the gasket surfaces
of the valve body, bonnet, and trim to verify they are not damaged and are free of imbedded gasket material.
Installation of Flushing and Hydro Trim Kits
1. Install the seat ring flat sheet gasket (key 12) in the lower gasket groove in the valve body (key 1), making sure the
gasket is centered in the groove and the bottom of the gasket is flush with the mating surface in the body
.
See
figure 4.
2. For Flushing Trim : Install eyebolt (3/8-16 UNC-2B) in to the hole on the top of the cage (key 2), as shown in figure 2.
Then proceed with step 3, lifting the cage using the eyebolt.
For Hydro Trim : Install threaded rods (1/4-20 UNC-2B) in to the holes on the top of the cage (key 2). Install hoist
rings, nuts or eye bolt on to the threaded rod, as shown in figure 3. Then proceed with step 3, lifting the cage using
the hoist rings on the threaded rods inserted in the top of the cage
Figure 2. Installation of Flushing Cage with Eyebolt