PVA FC100 User manual

FC100
FRONT CLOSING DISPENSE VALVE
Version: B12-1686
Operation Manual
1 MUSTANG DRIVE
COHOES, NY 12047
PHONE: [phone]
FAX: [phone]
[email protected]
www.pva.net

FC100
Front Closing Stainless Steel Dispense Valve
Thank you for purchasing the FC100 dispensing valve from PVA. Before
attempting to operate the FC100, 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 FC100 is a high pressure, front closing stainless steel dispensing valve that
can be used in a wide variety of applications. Applications include general dispensing of
dots, potting, bead placement, and gaskets.
The FC100 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 stroke adjustment bolt in the upper air body controls
how far the piston and needle assembly can retract thus regulating the rate of fluid flow.
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 stroke adjustment bolt regulates the
distance that the needle can retract out of the seat thus controlling the orifice size and rate
of fluid flow. Fluids can include but are not limited to solvents, epoxies, UV adhesives,
silicones, RTV, grease, etc.
Wetted parts on the FC100 include:
- 303, 304 stainless steel
- Teflon
- Kalrez

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 FC100 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 FC100 to fit 5/32” tubing. Note that the valve should be normally in the
closed position.
Fluid is supplied to the FC100 through the 1/8”npt 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 FC100
is part number B12-1829, which includes all necessary tools and lubricating grease to
perform maintenance on this dispense valve:
B12-1829 Includes:
Qty
Part Number
Description
2
0266244
8” Adjustable Wrench
2
26563
3/32” Allen Key
1
26561
5/64” 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
MM115
Removable Thread Locker
Operation
Refer to assembly drawing 112-2229 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 stroke
adjustment bolt, 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 stroke adjustment bolt (21) until the desired flow rate is achieved.
Turning the adjustment clockwise will decrease the material flow rate and
counter-clockwise will increase the material flow rate. If the stroke adjustment
bolt is turned all the way down it will stop the flow of fluid entirely.
8) Once the stroke adjustment setting is determined, use the adjustable wrench to
tighten the lock nut (22) up against the upper air body (11).
Note: Refer to Troubleshooting section for any problems.

Periodic Maintenance
1) Lubricate the packing (5) on the FC100 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) will require occasional tightening, as wear occurs in order to
prevent leaks through the packing.
Routine Cleaning and Disassembly
Cleaning and rebuilding the valve will be required from time to time. A spare
parts kit, part # FC1-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 (14) that
are located on the same corners as the fluid section standoffs (4). Note during
removal that there is a spring (17) 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 luer adapter (19) and washer (21).
9) Unthread and remove the needle 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 (15) 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 (13) that thread into the end cap (7). Note: During removal that
the spring (17) will force the air section apart.
13)Separate the upper air body (11) from the lower air body (8) to remove the spring
(17) then slide the end cap(7) off of the needle (3).
14)Holding the lower air body (8) in one hand, grab the needle (3) and push the
needle and piston (10) assembly out of the lower air body.
15)Remove the 004 Buna o-ring (16) from the lower air body (8).
16)Hold the piston (10) with an adjustable wrench then use a 5/64” Allen key to
unthread and remove the set screw (18) to remove the needle(3) then remove the
014 Buna o-ring (9) from the piston (10).

17)Remove the 014 Buna o-ring (9) from the upper air body (11) and the 008 Buna
o-ring from the stroke adjust bolt (21).
18)Unthread the stroke adjust bolt (21) from the upper air body (11) and remove the
008 Buna o-ring (12).
•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 (18).
•Assemble the air section and fluid section separately prior to connecting the two
assemblies.
Air Section
1) Assemble the stroke adjust (21) and lock nut (22) with the hex head toward the
knurled end of the bolt.
2) Mount one 008 Buna o-ring (12) on the inside groove of the stroke adjust (21).
3) Thread the stroke adjustment assembly into the upper air body (11).
4) Mount one 014 Buna o-ring (9) on the end of the upper air body (11) and the
other 008 Buna o-ring (12) on the end groove of the stroke adjust (21). Back out
the stroke adjust by turning counter clockwise to the end of its travel.
5) Drop the needle (3) into the piston (10) and assemble with the set screw (18)
using an adjustable wrench and 5/64” Allen key to tighten.
6) Mount the 014 Buna o-ring (9) onto the piston (10).
7) Apply a small amount of silicone grease to the inside of the lower air body (8)
then drop in the piston and needle assembly.
8) Mount the 004 Buna o-ring (16) on the end of the needle and slide it down into
the groove in the end of the lower air body (8).
9) Slide the end cap (7) onto the needle up to the lower air body (8), place the spring
(17) on top of the piston (10), and assemble the two air bodies using two machine
screws (13) tightening with a 3/32” Allen key. Note: Be sure the air holes are
lined up on the same face and will align with the fluid inlet on the fluid section (4)

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 (15) 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 needle adapter (1) onto the fluid body (4) and tighten with an
adjustable wrench.
4) Place the small washer (20) into the end of the needle adapter (1), then thread the
luer adapter (19) onto the needle adapter and tighten with an adjustable wrench.
Assemble Sections
1) Back out the stroke adjust bolt (21) by turning it counter clockwise until the end
of its travel.
2) Apply a small amount of silicone grease to the end of the needle (3) and insert it
into the packing nut (6) and slide the two sections together.
3) Align the air holes of the air section on the same face as the fluid inlet of the fluid
section then connect the sections using the two machine screws (14) tightening
them down evenly using a 3/32” Allen key.
4) 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 this valve, product number FC1-SP, includes the following
components:
FC1-SP Includes:
Qty
Part Number
Description
1
V302
Seat
1
114-5247
Needle
1
V305
Packing, Teflon
2
VLV-014B
O-ring, Buna
2
VLV-008B
O-ring, Buna
1
VLV-006K
O-ring, Kalrez
1
VLV-004B
O-ring, Buna
1
V125
Washer

BILL OF MATERIALS FOR FC100 (B12-1686):
Refer to Drawing #: 112-2229
Item
Part Number
Description
Quantity
1
V301
Needle 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
VLV-014B
O-Ring, Buna
2
10
V202
Piston
1
11
V228
Upper Air Body
1
12
VLV-008B
O-Ring, Buna
2
13
SH5-40x2.0”
Cap Screw
2
14
SH5-40x2.25”
Cap Screw
2
15
VLV-006K
O-Ring, Kalrez
1
16
VLV-004B
O-Ring, Buna
1
17
V050
Spring
1
18
V001
Set Screw
1
19
V300
Luer Adapter
1
20
V125
Washer
1
21
V230
Stroke Adjust
1
22
V229
Lock Nut
1

Troubleshooting
Problem
Possible Cause
Corrective Action
Valve does not
cycle
- Air pressure to air section too low
- Packing nut is too tight
- Stroke adjustment bolt 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 stroke adjustment bolt 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
- Stroke adjustment bolt is set too
low
- Increase fluid pressure
- Disassemble and clean valve
- Back out stroke adjustment bolt 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
- Stroke Adjustment bolt set out too
far
- Turn stroke adjustment bolt clockwise
Dispense rate too
slow
- Stroke Adjustment bolt set in too
far
- Turn stroke adjustment bolt counter-
clockwise

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: ______________________________