PC200_Manual_REV_G-1.pdf - 第15页

PC200 PVA Revis ion G (201 9) 15 of 56 Fig ure 9 : Disa ssembl ed Fluid Manif old 6. Remove the O - rings in th e fluid manifold . 7. Clean the O - rings and examine them for damag e. 8. Use a h ex key t o remov e the tw…

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PC200
PVA
Revision G (2019)
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Disassemble the Valve
This section shows how to disassemble PC200 valves (Std. PC200R process is
shown). Some steps that involve rods, lip seals, sleeve bearings, and O-rings will
differ between the R and RW series of the PC200. Not all options are shown. When
procedures are different from what is shown, “Notes” are given. If you have
questions about procedure steps, parts, or content, contact PVA’s customer service
department.
Procedure
Put valve sections, seals, parts, and screws in solvent to soak if material can be seen on
them. Do not combine materials A and B or they will cure. Examine all parts for wear
and damage. Replace parts if necessary.
1. Relieve system pressure. Disconnect material and air fittings. Disconnect the
valve from the dispense system.
2. Remove the retaining nut and the static mixer and needle.
Figure 7: PC200 Ready for Disassembly
3. Remove front bleed port plugs if necessary.
4. Use a hex key to remove the four machine screws in the fluid manifold.
Figure 8: Fluid Manifold Screws
5. Pull the manifold off of the valve assembly.
PC200
PVA
Revision G (2019)
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Figure 9: Disassembled Fluid Manifold
6. Remove the O-rings in the fluid manifold.
7. Clean the O-rings and examine them for damage.
8. Use a hex key to remove the two shoulder bolts from the seal plate.
Figure 10: Valve Shoulder Bolts
9. Use a hex key to remove the four machine screws from the air cap.
Figure 11: Remove Air Cap Screws
10. Remove the air cap.
PC200
PVA
Revision G (2019)
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Figure 12: Air Cylinder without Air Cap
11. Use a wrench to loosen the air fittings and then use your hand to remove
them.
Figure 13: Remove Air Fittings
12. Use a correctly sized hex key to push on the rods engaged in the seal plate.
Figure 14: Push Rods to Disengage
13. Push on the rods one at a time until the piston-rod assembly disengages
from the air cylinder.