PVA CAM200 User manual

CAM200
DIAPHRAGM DISPENSE VALVE
Version: B12-2112
Rev: C
Operation Manual
1 MUSTANG DRIVE
COHOES, NY 12047
PHONE: [phone]
FAX: [phone]
[email protected]
www.pva.net

CAM200
Diaphragm Dispense Valve, Lever Actuated
Thank you for purchasing the CAM200 dispensing valve from PVA. Before
attempting to operate the CAM200, we recommend that you take a few minutes and read
the following operation and setup manual. This will assist in familiarizing you with the
product and ensure a successful installation.
As always, if any questions or problems arise, do not hesitate to contact PVA’s
Valve Service Department for support. This department can be reached at PVA
headquarters via telephone or e-mail.
Again, thank you for your purchase, and we look forward to assisting you in the
future as you continue to improve your dispensing processes.
Theory of Operation
The CAM200 is an all plastic handheld dispense valve that uses a unique “floating
diaphragm” design. This valve is designed with a wand style body to make it more
ergonomic for a variety of handheld applications. The all plastic construction allows
adhesives such as Cyanoacrylates and Anaerobics to be dispensed through the valve along
with a variety of other low to medium viscosity fluids. Applications can include
dispensing dots, beads, or for potting.
The CAM200 has one body to house the fluid and piston & lever section. These include:
1) Piston & Lever section (Aluminum top cap with spring loaded lever)
2) Fluid section (Delrin body with Teflon diaphragm)
The piston & lever section and fluid section are separated by a diaphragm that is
clamped in between the two pieces. The piston & lever section is an aluminum top cap
that houses a spring loaded piston which presses against the diaphragm to keep the valve
in the closed position. When the lever is depressed it will raise the piston off the
diaphragm allowing it to float upward to dispense fluid through the wand style body to
the dispense tip.
Wetted parts on the CAM200 include:
- Delrin
- Teflon
- Polyethylene

Safety
Due to material contents being under pressure eye protection is required for
operators. Refer to MSDS sheets on material being dispensed for other precautions.
Setup
The CAM200 does not require an air source for operation but relies only on the
operator to depress a lever to actuate the valve. Constant material pressure is applied to
the diaphragm of the valve which is held in place with the spring loaded piston. When the
lever of the valve is depressed, the plunger lifts off the diaphragm and fluid is allowed to
dispense. When the lever is released, the spring will again force the plunger into the
diaphragm to return the valve to the closed position. Note that the valve is normally in the
closed position.
Fluid is supplied to the CAM200 through the 1/8”npt port located on the Delrin
fluid section of the valve.
Diaphragm Actuation
When the lever is depressed to lift the plunger, the diaphragm will flex under fluid
pressure to allow the valve to open and dispense.

Shutting Down Valve
At the end of the day or shift, it is necessary to shut down the CAM200 dispense
system properly in order to keep material from curing inside the valve.
1) Remove the disposable dispense tip from the luer adapter (9) and discard.
2) Thread a luer lock plug onto the luer adapter (PVA part # PV-LLCAP)
3) Relieve fluid pressure on the valve by turning off air pressure from the fluid
reservoir.
Starting Up Valve
At the beginning of the day or a shift it is necessary properly set up the CAM200 to
resume normal operation.
1) Remove the luer lock plug from the luer lock adapter (9) and discard.
2) Place a new dispense tip onto the luer lock adapter (9).
3) Apply fluid pressure to the valve by turning on the pressure to the fluid reservoir.
4) Cycle the valve to the open position to bleed all air that may have become trapped
when changing the needle tip.
Tool Kit
PVA offers standard tool kits for all dispensing valves. The tool kit for the
CAM200 is part number B12-2113, which includes all necessary tools to perform
maintenance on this dispense valve:
B12-2113 Includes:
Qty
Part Number
Description
1
0266244
8” Adjustable Wrench
1
7122A38
0.050” Allen Key
1
26569
9/64” Allen Key
1
9570K71
Hook and Pick Set

Operation
Refer to assembly drawing 112-2928 for part reference numbers.
1) Plumb up the valve as outlined above in the Setup procedures.
2) Being sure the valve is not aimed toward anyone, pressurize the fluid delivery
system. Note: The fluid pressure must be set to a minimum of 15psi. to flex the
diaphragm to the open position.
3) Cycle the valve to the open position by depressing the lever (7) to purge. Fluid
should begin to dispense from the tip of the valve. Continue dispensing until all
air is removed.
4) Check fluid connection for leaks. If the valve is leaking or dripping, refer to the
Troubleshooting section.
5) Adjust the material pressure until the desired flow rate is achieved.
6) Fine tune the flow rate with the stroke adjustment nut (5). First loosen the set
screw (11) with a .050” Allen key then turn the stroke adjustment clockwise to
increase flow and counter-clockwise to decrease the flow rate. If the stroke is
loosened too far out then the valve will not open.
7) Once the stroke adjustment setting is determined, retighten the set screw (11)
using a .050” Allen key.
Note: Refer to Troubleshooting section for any problems.
Routine Cleaning and Disassembly
Cleaning and rebuilding the valve will be required from time to time. A spare
parts kit, part # CAM2-SP is available with all the normal wear parts included.
1) If possible, flush the valve thoroughly with an appropriate solvent before
disassembly. (Refer to MSDS sheets of fluid for suggested solvent)
2) Begin disassembly by first removing fluid pressure from the system.
3) Remove all fluid delivery fittings, hoses, etc. from the valve.
4) Using the tip of a 9/64” Allen key, remove the four machine screws (12) that hold
the top cap (1) to the fluid section (3).
5) Lift off the top cap assembly and remove diaphragm (2).
6) Using an adjustable wrench, unthread and remove the plastic luer adapter (9) from
the fluid section (3).
7) Clean all of the wetted parts thoroughly with an appropriate solvent.
8) Using a .050” Allen key unthread and remove the set screw (11) that threads into
the stroke adjustment nut (3).
9) Unthread and remove the stroke adjustment nut (3) from the piston (4) which will
allow the piston and spring (8) to slide out through the bottom of the top cap (1).
10)Using a .050” Allen key unthread and remove the two set screws (11) that thread
into the standoffs (6).
11)Slide the dowel pin (10) out of the standoffs (6) and lever (7) to separate them
from the top cap (1).
•Replace components with spares provided in the spare parts kit.

Assembly Instructions
•The diaphragm must be assembled into the valve with the Teflon side facing the fluid.
Note: The Teflon side is the thinner, smooth side.
1) Slide the standoffs (6) through the bottom of the top cap (1) and rotate the
threaded sides outward.
2) Place the lever (7) in between the standoffs (6) and insert the dowel pin (10) to
hold in place.
3) Using a .050” Allen key thread the two set screws (11) into the standoffs (6) to
hold the dowel pin (10) in place but leave loose until the valve is assembled.
4) Place the spring (8) over the plunger (4) and insert the assembly through the
bottom of the top cap (1) and through the cutout in the lever (7).
5) Thread the stroke adjustment nut (5) onto the plunger (4) to hold the piston and
lever assembly together.
6) Using a .050” Allen key thread the set screw (11) into the stroke adjustment (11).
7) Place the diaphragm (2) onto the groove of the fluid section (3) with the thin
Teflon side down, against the fluid.
8) Mount the top cap (1) over the diaphragm (2) and assemble to the fluid section (3)
using the four socket head cap screws (12) tightening them down evenly with a
9/64” Allen key.
9) Tighten the two set screws (11) that thread into the standoffs (6) using a .050”
Allen key.
10)Thread the plastic luer adapter (9) into the bottom of the fluid section (3) and
tighten using an adjustable wrench.
Note: Be sure not to over tighten the luer adapter (4).
Spare Parts
PVA offers standard spare parts kits for all dispensing valves. These kits are
stocked for immediate shipment and allow replacement of all wearable parts of the valve.
The spare parts kit for this valve, product number CAM2-SP, includes the
following components:
CAM2-SP Includes:
Qty
Part Number
Description
10
V323
Diaphragm
1
V300-UV
Luer Adapter

BILL OF MATERIALS FOR CAM200 (B12-2112):
Refer to Drawing #: 112-2928
Item
Part Number
Description
Quantity
1
V351
Valve Top Cap
1
2
V323
Diaphragm
1
3
V333-NPT
Fluid Section
1
4
214-14855
Plunger, stainless steel
1
5
V348
Stroke Adjust Nut
1
6
V352
Standoff
2
7
614-5898-1
Handle
1
8
V059
Spring
1
9
V300-UV
Plastic Luer Adapter
1
10
V061
Dowel Pin
1
11
V060
Set Screw
3
12
SH8-32X0.5
Socket Head Cap Screw
4
Troubleshooting
Problem
Possible Cause
Corrective Action
Valve does not
cycle
- Fluid pressure too low
- Worn diaphragm
- Increase fluid pressure above 15psi.
- Replace diaphragm
Material leaks
from valve tip
- Worn diaphragm
- Air bubble trapped in fluid body or
in dispense needle
- Replace diaphragm
- Flip valve upside down and cycle
until air bubbles are removed
Valve does not
dispense
anything
- Fluid pressure is too low
- Material cured in fluid section
- Worn diaphragm
- Increase fluid pressure above 15psi.
- Disassemble and clean valve
- Replace diaphragm
Air bubbles in
fluid
- Valve not properly purged
- Problem with fluid delivery system
- Flip valve upside down and cycle
until air bubbles are removed
- Diagnose and repair.
Dispense rate too
fast
- Fluid pressure set too high
- Stroke adjustment set too high
- Dispense tip gauge too large
- Decrease fluid pressure
- Turn stroke adjust counter-clockwise
- Replace dispense tip with smaller size
Dispense rate too
slow
- Fluid pressure set too low
- Stroke adjustment set too low
- Dispense tip gauge too small
- Increase fluid pressure
- Turn stroke adjust clockwise
- Replace dispense tip with larger size

PVA Warranty Policy
PVA warrants the enclosed product against defects in material or workmanship on
all components for one year from the date of shipment.
The warranty does not extend to components damaged due to misuse, negligence,
or installation and operation that is not in accordance with the recommended factory
instructions. 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.
All PVA warranties extend only to the original purchaser. Third party warranty
claims will not be honored at any time.
Prior to returning a product for a warranty claim, a return authorization must be
obtained from PVA’s customer service department. Authorization will be issued either
via the telephone, facsimile, or in writing upon your request.
To qualify as a valid warranty claim, the defective product must be returned to the
factory during the warranty period. Upon return, PVA will repair (or replace) all
components found to be defective in material or workmanship.
(Retain this for your records)
Product Information:
PRODUCT: ______________________________
SERIAL NUMBER: ______________________________
DATE OF PURCHASE: ______________________________