Setup Instructions; Typical System Setup; Trouble Shooting; Maintenance And Cleaning - TECHCON SYSTEMS TS941 Manuel D'utilisation

5. Setup instructions

• Connect the fluid reservoir feed tube (1) to the valve inlet
port (2).
• Connect the valve airline (3) to the valve controller or
other pneumatic device that is used to control the valve.
• Connect appropriate nozzle or dispensing tip (4) to the
fluid outlet port.
• Set the valve controller pressure at 70 psi (4.8 bar)
• Set the fluid reservoir pressure. Do not exceed 2,500 psi
(172 bar)
• Make sure all connections are tight
• Place container under the valve outlet and activate the
valve until the fluid flows steady.
The amount of fluid that flows through the valve is
determined by:
• Valve open time
• Fluid reservoir pressure
• Dispensing tip size
NOTE: Techcon makes an available an adjustable "suck-
back" cap part number 934-003-000

6. Typical system setup

PLANT AIR MUST BE PROPERLY
FILTERED AND DRY. IF NOT, SPECIFY
A 5-MICRON FILTER REGULATOR.
TECHCON SYSTEMS TS5130
CONTROLLER OR EQUIVALENT
MATERIAL
CONSTANT AIR
PULSED AIR
Techcon Systems is an OK International Brand
Copyright © All Rights Reserved • TS941 Rev 04/04
5
3
1
2
4
TS941
SPOOL VALVE
FLUID FEED SYSTEM

7. Trouble shooting

PROBLEM POSSIBLE CAUSE
No Fluid Flow Fluid pressure too low
Operating pressure too low
Dispense tip clogged
Fluid cured in valve chamber
Inconsistent Fluid Flow Fluid pressure fluctuating
Valve operating pressure is
too low
Valve open time is not
consistent
Air trapped in fluid housing
Fluid Drools After
The Valve Closes Air trapped in fluid housing
But Eventually Stops
Lower seal damaged or worn
Steady Drip
Spool damaged
Inlet air fitting is too long,
pushing the spool in the
opened position
Fluid Leaks Out Of The Upper seal damaged or worn
Oil Port

8. Maintenance and cleaning

Normally, purging the valve with appropriate flush material or solvent after use is
sufficient for cleaning. However some material may cause a buildup in the valve
chamber, in this case periodic and thorough cleaning will be required.
CAUTION: Make sure the fluid pressure is released before disassemble the valve.
1) Release fluid pressure
2) Disconnect fluid line
3) Disconnect valve air line
4) Remove end cap (1)
5) Pull out Piston/valve spool assembly (4 )
6) Remove the spring from air cylinder (2 )
Techcon Systems is an OK International Brand
Copyright © All Rights Reserved • TS941 Rev 04/04
CORRECTION
Increase fluid pressure
Increase air pressure to 70 psi
(4.8 bar)
Replaced tip
Replaced tip
Clean valve thoroughly
Make sure fluid pressure is
constant
Increased valve pressure to
70 psi (4.8 bar)
Check to make sure the valve
controller is providing a
consistent output
Purge valve
Purge valve
Replace lower seal
Replace spool
Replace air fitting
Replaced upper seal
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