PVA FCM200 User manual
FCM200
Front Closing Stainless Steel Micro Dispense Valve
Thank you for purchasing the FCM100 dispensing valve from PVA. Before
attempting to operate the FCM100, 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 FCM100 is a high pressure, front closing stainless steel micro dispense valve
designed to apply fluids using a non-contact method. Typical applications include
dispensing small dots or lines of low viscosity fluids.
The FCM100 has a divorced design comprising of two major sections. These include:
1) Air section (red anodized portion)
2) Fluid section (stainless steel portion)
The air section is an aluminum body with a simple piston/cylinder combination
used to open and close the valve. A micrometer adjustment in the upper air body controls
how far the piston and needle assembly can retract thus regulating the rate of fluid flow.
The micrometer will display a distance that the piston and needle will travel.
The fluid section is a stainless steel body, which includes a needle and seat
combination to control fluid flow. Fluid dispenses as the needle retracts out of the seat,
then stops as the needle moves back into the seat. The micrometer adjustment regulates
the distance that the needle can retract out of the seat thus controlling the orifice size and
rate of fluid flow. Fluids typically include low viscosity conformal coatings or underfills.
Wetted parts on the FCM100 include:
- 303, 304 stainless steel
- Teflon
- Kalrez
Nozzle Options
The FCM100 valve is available with several different gauge size dispense nozzles
(17). Different nozzle sizes are easily interchangeable to the valve by removing the
nozzle lock nut (12). Nozzle sizes are selected based on the size dot or bead of material
that is to be applied. A 22 gauge nozzle will give you the largest dot and wider bead
width while the 30 gauge nozzle will offer the smallest dot size and smallest bead width.
Valves are supplied from the factory with one nozzle included. Below is a chart
showing part number that are used to specify the nozzle that is supplied with a valve, the
available gauge sizes, inside diameters of the nozzles, and part number for each
individual nozzle.
Valve Part Number Nozzle Size Nozzle ID Nozzle Part Number
FCM100-22G 22 gauge 0.016” PV-22005A
FCM100-25G 25 gauge 0.010” PV-25007A
FCM100-27G 27 gauge 0.008” PV-27005A
FCM100-28G 28 gauge 0.007” PV-28004A
FCM100-30G 30 gauge 0.006” PV-30001A
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.
Periodic Maintenance
Refer to the FCM100 cross sectional view for location of parts referenced in the
following procedures.
1) Lubricate the packing (5) on the FCM100 valve every 200 hrs by placing a few
drops of mineral oil or other light oil inside the packing nut.
*Note: PVA offers a 2.5cc mineral oil lubrication kit; Part#: B62-0752
2) The packing nut (6) may require occasional tightening, as wear occurs in order to
prevent leaks through the packing.
Setup
The FCM100 requires a 2-position, 4-way air solenoid valve to actuate the air
section. The valve should be operated with clean, dry air between 60-100psi. Two #10-32
threaded air ports are located on the air section of the valve. The port located furthest
from the midsection of the valve is air to close the valve. The port located closest to the
mid-section of the valve is air to open the valve. Quick connect air fittings are typically
supplied with the FCM100 to fit 5/32” tubing. Note that the valve should be normally in
the closed position.
Fluid is supplied to the FCM100 through the 1/8”fnpt port located on the stainless
steel fluid section of the valve.
Tool Kit
PVA offers standard tool kits for all dispensing valves. The tool kit for the
FCM100 is part number B12-1986, which includes all necessary tools and lubricating
grease to perform maintenance on this dispense valve:
B12-1986 Includes:
Qty
Part Number
Description
2
0266244
8” Adjustable Wrench
2
26563
3/32” Allen Key
1
26561
5/64” Allen Key
1
26559
1/16” Allen Key
1
5516A18
Tweezers
1
B62-0752
2.5cc Mineral Oil Lubrication Kit
1
B62-2048
2.5cc Silicone Lubricant
1
9570K71
Hook and Pick Set
1
0266255
Pliers
2
53085A61
Soft Plastic Covers for Pliers
1
PB135/2
Micrometer Screw Driver, #2
1
PT17184
Micrometer Adjustment Wrench
1
MM115
Removable Thread Locker
Operation
Refer to assembly drawing 112-2420 for part reference numbers.
1) Plumb up the valve as outlined above in the Setup procedures.
2) Regulate the air pressure operating the valve between 60-100psi.
3) Making sure that the valve is not aimed toward anyone, cycle the valve several
times. When the valve is cycling, the piston can be heard hitting the micrometer
adjustment, and the needle (3) can be seen going up and down in the center. If the
valve is not cycling properly, refer to the Troubleshooting section.
4) When the fluid delivery system is connected to the valve, pressurize the material
to be dispensed.
5) Once again, cycle the valve open to purge. Fluid should begin to dispense from
the tip of the valve, continue dispensing until all air is removed.
6) Check fluid connection and packing nut (6) for leaks. If the valve is leaking, refer
to the Troubleshooting section.
7) Turn the micrometer adjustment (11) until the desired flow rate is achieved.
Turning the adjustment clockwise toward zero will decrease the material flow rate
and counter-clockwise will increase the material flow rate. If the micrometer
adjustment is turned all the way down to zero, it will stop fluid flow entirely.
8) Once the micrometer setting is determined, the collar (E) on the micrometer (11)
can be turned clockwise to lock the adjustment.
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 # FCM1-SP is available with all the normal wear parts included.
1) Begin disassembly by removing air and fluid pressure from the valve.
2) Remove all pneumatic tubing and fluid delivery fittings, hoses, etc. from the
valve.
3) Using the tip of a 3/32” Allen key, loosen the packing nut (6).
4) Using the same 3/32” Allen key, evenly remove the two machine screws (22) that
are located on the same corners as the fluid section standoffs (4). Note: During
removal that there is a spring (18) forcing the air section away from the fluid
section.
5) Pull the air section (red anodized portion) away from the fluid section (stainless
steel portion).
6) Clean off the tip of the stainless steel needle (3).
7) From the fluid section of the valve, unthread and remove the packing nut (6), and
the packing (5).
8) Unthread and remove the nozzle lock nut (12) followed by the nozzle (17).
9) Unthread and remove the nozzle adapter (1) from the fluid section (4).
10)Using pliers, pull the seat (2) out of the fluid section (4) and remove the 006
Kalrez o-ring (16) from the seat. Note: If stuck, the seat can be pushed through
from the opposite side of the fluid section.
11)Clean all of the wetted parts thoroughly with an appropriate solvent.
12)On the air section, use a standard 3/32” Allen key to evenly remove the final two
machine screws (21) that thread into the end cap (7). Note: During removal that
the spring (18) will force the air section apart.
13)Separate the upper air body (10) from the lower air body (8) to remove the spring
(18) then slide the end cap (7) off the needle (3).
14)Holding the lower air body (8) in one hand, grab the needle (3) and push the
needle and piston (9) assembly out of the lower air body.
15)Remove the 004 Buna o-ring (15) from the lower air body (8).
16)Hold the piston (9) with an adjustable wrench then using the 5/64” Allen key
unthread and remove the set screw (19) to remove the needle (3) and remove the
014 Buna o-ring (13) from the piston (9).
17)Remove the 014 Buna o-ring (13) from the upper air body (10) then use a 1/16”
Allen key to remove the set screw (20).
18)Using pliers grip the collar (E) or body (D) of the micrometer (11) and turn
counter-clockwise to loosen then unthread and remove from the upper air body
(10) by hand.
19)Remove the 007 Buna o-ring (14) from the micrometer (11).
•Replace components with spares provided in the spare parts kit.
Assembly Instructions
General
•All o-rings must be lubricated with a small amount of silicone grease.
•A small amount of removable thread locker should be applied to the set screw (19).
•Assemble the air section and fluid section separately prior to connecting the
assemblies.
Air Section
1. Mount one 007 Buna o-ring (14) on the end (F) of the micrometer (11) and slide it
up to the threads.
2. Thread the micrometer (11) into the upper air body (10) hand tight.
3. Holding the collar (E) of the micrometer (11) turn the dial (C) counter-clockwise
until the number 5 can be seen on the gauge (D).
4. Using pliers grab the gauge (D) section of the micrometer and turn clockwise to
snug it onto the upper air body (10).
5. Use a 1/16” Allen key to assemble the set screw (20) into the upper air section
(10) securing the micrometer (11) in place.
6. Mount one 014 Buna o-ring (13) on the end of the upper air body (10).
7. Drop the needle (3) into the piston (9) and assemble with the set screw (19) using
an adjustable wrench and 5/64” Allen key to tighten.
8. Mount the 014 Buna o-ring (13) onto the piston (9).
9. Apply a small amount of silicone grease to the inside of the lower air body (8)
then drop in the piston and needle assembly.
10. Mount the 004 Buna o-ring (15) on the end of the needle and slide it down into
the groove in the end of the lower air body (8).
11. Slide the end cap (7) onto the needle up to the lower air body (8), place the spring
(18) on top of the piston (9), and assemble the two air bodies using two machine
screws (21) tightening with a 3/32” Allen key. Note: Be sure the air holes are
lined up on the same face.
Fluid Section
1. Drop the packing (5) into the fluid section (4), and screw in the packing nut (6)
but leave finger tight until assembled with the air section.
2. Mount the 006 Kalrez o-ring (16) on the seat (2) and push the seat into the bottom
of the fluid section (4). When inserting the seat, work the o-ring into the fluid
body with finger to prevent shearing of the edge of the o-ring.
3. Thread the nozzle adapter (1) onto the fluid body (4) and tighten with an
adjustable wrench.
4. Drop the nozzle (17) into the bottom groove of the nozzle lock nut (12) and thread
the assembly onto the nozzle adapter (1).
Assemble Sections
1) Be sure the micrometer adjustment (11) is backed out far enough so at least the
number 1 can be seen on the gauge (D).
2) Apply a small amount of silicone grease to the end of the needle (3) and insert it
into the packing nut (6). Connect the sections using the two machine screws (22)
tightening them down evenly using a 3/32” Allen key.
3) Using the tip of a 3/32” Allen key, tighten the packing nut (6).
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 the FCM100, product number FCM1-SP, includes the
following components:
FCM1-SP Includes:
Qty
Part Number
Description
1
V302
Seat
1
114-5247
Needle
1
V305
Packing, Teflon
2
VLV-014B
O-ring, Buna
1
VLV-007B
O-ring, Buna
1
VLV-006K
O-ring, Kalrez
1
VLV-004B
O-ring, Buna
1
PT17184
Micrometer Adjust Wrench
Micrometer Adjustment Breakdown
BILL OF MATERIALS FOR FC100-MC (B12-1788):
Refer to Drawing #112-2420
Item
Part Number
Description
Quantity
1
114-7293
Nozzle Adapter
1
2
V302
Seat
1
3
114-5247
Needle
1
4
114-6933
Fluid Section
1
5
V305
Packing
1
6
V306
Packing Nut
1
7
V200
End Cap
1
8
V201
Lower Air Body
1
9
V202
Piston
1
10
114-6556
Upper Air Body
1
11
01423
Micrometer Head
1
12
114-8274
Lock Nut, Nozzle
1
13
VLV-014B
O-Ring
2
14
VLV-007B
O-Ring
1
15
VLV-004B
O-Ring
1
16
VLV-006K
O-Ring
1
17
PV-xxxxxA
Nozzle
1
-
PV-22005A
22 gauge nozzle
PV-25007A
25 gauge nozzle
PV-27005A
27 gauge nozzle
PV-28004A
28 gauge nozzle
PV-30001A
30 gauge nozzle
18
V050
Spring
1
19
V001
Set Screw
1
20
01469
Set Screw
2
21
SH5-40x1.75”
Cap Screw
2
22
SH5-40x2.0”
Cap Screw
2
23 (A)
PT17184
Micrometer Adjust Wrench
1
Troubleshooting
Problem
Possible Cause
Corrective Action
Valve does not
cycle
- Air pressure to air section too low
- Packing nut is too tight
- Micrometer adjustment is
bottomed out
- Material is cured in the valve
- Valve was assembled w/o
lubricating the O-ring seals
- Increase air pressure to 60-100 psi
- Loosen packing nut until valve just
begins to cycle, retighten
- Back out micrometer adjustment by
turning it counter-clockwise
- Disassemble and clean valve
- Disassemble valve, lubricate seals and
re-assemble
Material leaks
from valve tip
- Packing nut is too tight
- Needle and/or seat are worn
- Air bubble trapped in fluid body or
in dispense needle
- Loosen packing nut
- Replace parts as necessary
- Flip valve upside down and cycle
until air bubbles are removed
Valve leaks from
mid-section
- Packing nut is loose
- Packing is worn
- Tighten packing nut until snug
- Replace packing
Valve does not
dispense
anything
- Fluid pressure is too low
- Material cured in fluid section
- Micrometer adjustment bolt is set
too close to zero
- Increase fluid pressure
- Disassemble valve and clean
- Back out micrometer adjustment by
turning it counter-clockwise
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
- Micrometer Adjustment set out too
far
- Turn micrometer adjustment bolt
clockwise toward the zero mark
Dispense rate too
slow
- Micrometer Adjustment bolt set
too close to the zero mark
- Turn micrometer adjustment bolt
counter-clockwise
Fluid does not
dispense straight
from the nozzle
- Fluid pressure too low
- Material cured on nozzle tip
- Increase fluid pressure until fluid
dispenses vertically
- Clean tip with cloth or solvent
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: ______________________________
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