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WHERE PRECISION DRIVES PRODUCTION PC200 Valve Series OWNER’S MANUAL Rev G Precision Valve & Automation One Mustang Drive Cohoes, NY 12047 www.pva.net...
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PC200 PVA This document is based on information available at the time of its publication. While efforts have been made to ensure the contents of this manual are accurate, the information contained herein does not purport to cover all specific details or variations in hardware, or to provide for every possible contingency in connection with installation, operation, or maintenance.
Before you operate this system, read the operation and setup manual. This will help you to become familiar with the product and ensure successful operation. If any questions or problems arise, contact PVA’s Customer Service Department for support. PVA Contact Information...
PC200 PVA Safety Certain warning symbols are affixed to the machine and correspond to notations in this manual. Before operating the system, identify these warning labels and read the notices described below. Not all labels may be used on any specific system.
PC200 PVA Theory of Operation The PC200 is a rear closing, two component dispensing valve. Applications include potting, bead placement, and gaskets where a low to medium flow rate is required. This valve has adjustable snuff back to prevent drips or strings at the end of the static mixer.
Dispose of all used parts and materials in accordance with local laws and regulations. Tool Kit PVA offers tool kits for dispense valves. The tool kit for the PC200 series valve is part number B12-2602. This includes all necessary tools and lubricant to do maintenance on this valve.
PC200 PVA Overview Before you operate the valve, know the valve components. Examine the valve components shown below for safe and correct operation. Figure 2: Valve Components Revision G (2019) 9 of 56...
PC200 PVA Valve Operation Startup 1. Install the valve pneumatically as shown in Section 1.5 and set the air pressure that operates the valve between 60-100 psi. 2. Cycle the valve several times. Make sure that the valve is not pointed at anyone.
PC200 PVA Install the Static Mixer 1. Put the static mixer on the PC200 valve manifold as shown. Figure 3: Static Mixer 2. Hold the static mixer on the PC200 manifold with your hand. 3. Use the purge function (in Manual mode) on the machine controller to purge material through the static mixer.
PC200 PVA 5. Pull the static mixer straight down, off the PC200 valve manifold so there is a small space between the static mixer and the manifold. 6. Use the purge function on the machine controller to purge material until it overflows from the top of the static mixer.
3. Clean all material off of the manifold nozzle. 4. Put a night cap (PVA part number 214-3832) on the manifold nozzle. 5. Release the pressure in the system, refer to the workcell manual.
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.
PC200 PVA 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.
PC200 PVA 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.
PC200 PVA Figure 15: Disengaged Piston-Rod Assembly 14. Remove the seal plate. Figure 16: Seal Plate Removed 15. Remove and clean the O-rings in between the seal plate and the fluid section. 16. Remove and clean the lip seals in the fluid section.
PC200 PVA 18. Pull the air cylinder, separation block, and fluid section apart. Figure 18: Disconnect Valve Sections 19. Examine the sleeve bearings in the separation block for damage or wear. If there is any sign of wear replace them.
PC200 PVA WARNING: Do not let the tap go through the sleeve bearing and into the separation block. 22. Continue to turn the tap clockwise and push in until the sleeve bearing starts to spin when you turn the tap.
PC200 PVA Figure 23: Remove Lip Seals From Fluid Section 27. Clean the lip seals. 28. Use the hook and pick set to remove the O-ring in the air cylinder. Figure 24: Air Cylinder O-ring 29. Examine and clean the O-ring.
PC200 PVA Clean the Disassembled Valve Use solvent, lint free towels, and cotton tipped applicators to clean the valve. Wear protective gloves. Do not get material or solvent on your skin. When you clean the valve, remove all grease and material before the valve is assembled again.
PC200 PVA 5. Clean the fluid section. 6. Use a pick to remove large amounts of material. Do not mix the materials. 7. Use solvent as necessary to clean hard to get to locations. Figure 28: Clean the Fluid Section 8.
R and RW series of the PC200. Not all options are shown. Valve series are closely related. 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.
PC200 PVA Figure 32: Tighten Rods NOTE: Make sure the rods are tight and cannot turn freely by hand. 6. Put the 123 Buna O-ring on the piston. Figure 33: Put the O-ring on the Piston 7. Align the sleeve bearings with the two holes in the top of the separation block.
PC200 PVA 10. Apply silicone grease to the lip seals top surfaces. Figure 35: Lip Seals in Seal Plate 11. Apply a small amount of grease inside the alignment tool and the lip seal openings on the fluid section. 12. Put a lip seal in the lip seal alignment tool (supplied with tool kit) and put it on the top of the fluid section.
PC200 PVA Figure 38: O-rings for the Fluid Section 16. Align the separation block, the fluid body and the seal plate. Make sure the sections point the correct way (as shown). Figure 39: Align the Sections 17. Use a hex key to install two #10-24 shoulder bolts at the seal plate to attach the assembly.
PC200 PVA Figure 41: Align the O-rings 20. Align the air cylinder and the assembly. Figure 42: Air Cylinder Openings Aligned with the Assembly 21. Put the air cylinder on the fluid assembly. Make sure the air port is on the right side.
PC200 PVA Figure 45: Apply Grease to the O-ring Figure 46: Piston-Rod Assembly 24. Carefully install the piston-rod assembly into air cylinder opening. 25. Push the piston-rod assembly straight down through separation block, slowly, with pressure that stays the same, until resistance is met (position as shown below).
PC200 PVA Figure 48: Use a Press to Install the Piston-Rod Assembly 27. Use the press to push down on the assembly with pressure that stays the same until a pop is heard, the rods go through the lip seals, and the piston is fully engaged into air cylinder.
PC200 PVA Figure 50: Apply Grease to Air Cylinder Groove 31. Install a 030 Buna O-ring in the air cylinder groove. 32. Apply grease to the top of the installed O-ring with your finger. Figure 51: Apply Grease to O-ring 33.
PC200 PVA Figure 53: Sealing Washer 35. Put the jam nut on the stroke adjustment screw and turn it until it is tight to the sealing washer. Figure 54: Jam Nut 36. Put the cylinder cap on the air cylinder.
PC200 PVA Figure 56: O-rings in the Fluid Manifold 40. With the lettering on the front, put the fluid manifold on the seal plate and install four machine screws. Figure 57: Fluid Manifold Aligned with Valve 41. Use a 5/32” hex key to tighten the screws.
PC200 PVA Periodic Maintenance How to Replace a Static Mixer Remove the old static mixer and do the steps in Section 3.2 to install a new static mixer. How to Replace Lip Seals The PC200 valve will require lip seal replacement periodically. The interval between seal replacement varies widely depending on duty cycle, material type, and day to day care of the valve.
3. Refer to Section 4.3 to assemble the valve again. PC200R Series Reference ® NOTE: If your valve has Teflon lip seals you must use Kalrez O-rings. To order these parts please contact PVA. Revision G (2019) 34 of 56...
PC200 PVA PC200R Series Exploded View Figure 60: PC200R Exploded View PC200RW Series Reference ® NOTE: If your valve has Teflon lip seals you must use Kalrez O-rings. To order these parts please contact PVA. Revision G (2019) 38 of 56...
O-ring, 123 Buna VLV-123B O-ring, 108 Buna VLV-108B O-ring, 016 Viton VLV-016V Bearing, sintered sleeve, .188 x .375 x .250” long 01502 Washer, nylon 214-5368 Contact PVA for information on replacement parts or to order. Revision G (2019) 46 of 56...
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O-ring, 123 Buna VLV-123B O-ring, 108 Buna VLV-108B O-ring, 016 Kalrez VLV-016K Bearing, sintered sleeve, .188 x .375 x .250” long 01502 Washer, nylon 214-5368 Contact PVA for information on replacement parts or to order. Revision G (2019) 47 of 56...
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VLV-006V Bearing, sintered sleeve, .188 x .375 x .250” long 01502 Bearing, sintered sleeve, .125 x .250 x .250” long 01503 Washer, nylon 214-5368 Contact PVA for information on replacement parts or to order. Revision G (2019) 48 of 56...
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VLV-006K Bearing, sintered sleeve, .188 x .375 x .250” long 01502 Bearing, sintered sleeve, .125 x .250 x .250” long 01503 Washer, nylon 214-5368 Contact PVA for information on replacement parts or to order. Revision G (2019) 49 of 56...
PC200 PVA Troubleshooting Troubleshooting Possible Cause Corrective Action Problem • Air pressure to air section is too • Increase the air pressure to 60-100 Valve Does Not Cycle • Stroke adjustment screw is • Turn stroke adjustment screw counter- fully engaged clockwise to increase snuff back •...
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• Bleed material supply system until the Nozzle correctly bled of air air is removed • Seals are not compatible with • Contact PVA for seal options Seals Fail material Rapidly • Contact PVA for seal options • Material has abrasive fillers •...
Unauthorized repair or modification of the enclosed product, and/or the use of spare parts not directly obtained from PVA (or from factory authorized dealers) will void all warranties.
PC200 PVA Table of Figures Figure 1: General PC200 Pneumatic Schematic ..............7 Figure 2: Valve Components ....................9 Figure 3: Static Mixer ......................11 Figure 4: Fill the Static Mixer .................... 11 Figure 5: Purge the Static Mixer ..................12 Figure 6: PC200 Night Cap ....................
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PC200 PVA Figure 40: Assemble the Separation Block, Fluid Body and Seal Plate ......26 Figure 41: Align the O-rings ....................27 Figure 42: Air Cylinder Openings Aligned with the Assembly ........... 27 Figure 43: Air Cylinder and Fluid Assembly ..............27 Figure 44: Apply Grease to the Cylinder Wall ..............
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