TECHCON SYSTEMS TS5620 Series User manual

Techcon Systems
TS5620 Series
Diaphragm Valve
User Guide

2
CONTENTS
Pagenumber
1. Specifications ………………………………………………………………………………3
2. Unpacking and Inspection ………………………………………………………………5
3. Description ………………………………………………………………………………5
4. Theory of Operation ………………………………………………………………………5
5. Setup Instructions ………………………………………………………………………6
6. Typical System Setup ………………………………………………………………………7
7. Troubleshooting ………………………………………………………………………8
8. Maintenance and Cleaning
8.1 Cleaning ……………………………………………………………………………….9
8.2 To Change the Diaphragm ………………………………………………………10
8.3 To Change and Lubricate Piston O-ring ………………………………………………11
9. Spare Parts and Accessories
9.1 Spare Parts ………………………………………………………………………12
9.2 Standard Accessories ………………………………………………………………13
9.3 Optional Accessories ………………………………………………………………14

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1. SPECIFICATIONS HORIZONTAL MOUNT CONFIGURATIONS
TS5620HU TS5620HT TS5621HD
Size 2.4” length X 0.94” diameter
(61mm X 24 mm)
2.4” length X 0.94”diameter
(61mm X 24 mm)
2.4” length X 0.94” diameter
(61mm X 24 mm)
Weight 0.13lb (61g) 0.13lb (61g) 0.14lb (63g)
Fluid Inlet Port 1/4 - 28 UNF 1/4 - 28 UNF 1/8”NPT female
Fluid Outlet Port 1/4 - 28 UNF 1/4 - 28 UNF 1/8" NPT female
Air Inlet Port 10-32 UNF 10-32 UNF 10-32 UNF
Mounting Port 10-32 UNF 10-32 UNF 10-32 UNF
Air Pressure required 70 – 90 psi (4.8 – 6.2 bars) 70 – 90 psi (4.8 – 6.2 bars) 70 – 90 psi (4.8 – 6.2 bars)
Maximum Fluid
Pressure 70 psi (4.8 bars) 70 psi (4.8 bars) 70 psi (4.8 bars)
Operating Frequency Exceeds 500 cycles/min. Exceeds 500 cycles/min. Exceeds 500 cycles/min.
Wetted Parts UHMWPE Teflon®UHMWPE and Acetal
Dimensions in are in inches (mm)
Figure 1.0

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VERTICAL MOUNT CONFIGURATIONS
TS5622VU TS5622VD TS5622VT
Size 2.6” length X 1.06” diameter
(66mm X 27 mm)
2.6” length X 1.06” diameter
(66mm X 27 mm)
2.6” length X 1.06” diameter
(66mm X 27 mm)
Weight 0.15lb (66g) 0.15lb (66g) 0.15lb (66g)
Fluid Inlet Port 1/8”NPT female 1/8”NPT female 1/8”NPT female
Fluid Outlet Port 1/4-28 UNF 1/4-28 UNF 1/4-28 UNF
Air Inlet Port 10-32 UNF 10-32 UNF 10-32 UNF
Mounting Port 10-32 UNF 10-32 UNF 10-32 UNF
Air Pressure required 70 – 90 psi (4.8 – 6.2 bars) 70 – 90 psi (4.8 – 6.2 bars) 70 – 90 psi (4.8 – 6.2 bars)
Maximum Fluid
Pressure 70 psi (4.8 bars) 70 psi (4.8 bars) 70 psi (4.8 bars)
Operating Frequency Exceeds 500 cycles/min. Exceeds 500 cycles/min. Exceeds 500 cycles/min.
Wetted Parts UHMWPE UHMWPE and Acetal Teflon®
1/4-28 UNF FLUID INLET FITTING
1/8 NPT
(FLUID INLET PORT)
10-32 UNF
(AIR INLET PORT)
10-32 UNF
(MOUNTING HOLE)
[30.48]
1.20
[12.70]
0.50
2.60 [66.04]
3.00
[76.20]
Ø1.06 [26.90]
FLUID OUTLET FITTING
(FLUID OUTLET PORT)
Dimensions are in inches (mm)
Figure 2.0

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2. UNPACKING AND INSPECTION
Carefully unpack the valve and examine the items contained in the carton.
These will include:
•Valve Assembly
•Valve bracket
•Sample Needle Kit and fluid line t
•User Guide
•Valve Air Hose
Inspect the unit for any damaged which may have occurred in transit. If such damage has occurred,
notify the carrier at once. Claim for damage must be made by the consignee to the carrier, and should be
reported to the manufacturer.
3. DESCRIPTION
The TS5620 Series Diaphragm valves are designed to dispense low to medium viscosity fluids. An
internal spring return makes the valve fully adaptable for use with any time/pressure controllers. A short
opening stroke provides extremely fast, positive shut-off. An external stroke control adjustment makes
it easy to fine tune shot sizes. The TS5620 Series compact design allows for mounting flexibility and
easy integration into automated applications.
4. THEORY OF OPERATION
The TS5620 Series Diaphragm Valves are normally closed, adjustable stroke valves. Input air pressure
of 70-90 psi (4.8 to 6.2 bars) through port (1) drives the piston assembly (2) back, opening the material
path, allow fluid flow from the material inlet (3) to the material outlet (4).
Relieving the input air pressure allows the piston return spring to close the diaphragm, ensuring rapid
“fail-safe” shut-off of fluid flow.
Figure 3.0
1 2
3
4

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5. SETUP INSTRUCTIONS
Refer to figure 4.0
1. Connect the fluid reservoir feed tube (1) to the valve inlet port (2).
2. Connect the valve airline (3) to the valve controller or other pneumatic device that is used to
control the valve.
3. Connect appropriate dispensing tip or nozzle to the fluid outlet port (4).
4. Set the valve controller pressure at 70 psi (4.8 bars)
5. Set the fluid reservoir pressure. Do not exceed 70 psi (4.8 bars)
6. Make sure all connections are tight
7. 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
Figure 4.0
1
2
3
4

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6. TYPICAL SYSTEM SETUP
TECHCON SYSTEMS TS5130
CONTROLLER OR EQUIVALENT FLUID FEED SYSTEM
TS5622VU
DIAPHRAGM VALVE
PLANT AIR MUST BE PROPERLY
FILTERED AND DRY. IF NOT, SPECIFY
A 5-MICRON FILTER REGULATOR.
MATERIAL
CONSTANT AIR
PULSED AIR
Figure 5.0

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7. TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE CORRECTION
Fluid pressure too low Increase fluid pressure
Operating pressure too low Increase air pressure to 70 psi (4.8 bars)
Dispense tip clogged Replaced tip
Fluid cured in valve chamber Clean valve thoroughly
No fluid flow
The stroke adjustment closed Open stroke adjustment counterclockwise
Fluid pressure fluctuating Make sure fluid pressure is constant
Valve operating pressure is too
low Increased valve pressure to 70 psi (4.8 bars)
Valve open time is not consistent Check to make sure the valve controller
is providing a consistent output
Inconsistent
fluid flow
Air trapped in fluid housing Purge valve
Fluid drools after the valve
closes, eventually stopping Air trapped in fluid housing Purge valve
Worn diaphragm Replace diaphragm
Worn fluid housing Replace fluid housing
Fluid pressure exceeds 70 psi
(4.8 bars) Lower fluid pressure
Steady drip
Valve re-assembled incorrectly
after cleaning Refer to Maintenance section
Fluid leaks between
diaphragm and fluid housing Mounting screws loose Tighten screws
Fluid leaks out of bleed hole Diaphragm ruptured Replace diaphragm

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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.
8.1 Cleaning
Refer to figure 6.0
1. Release fluid pressure
2. Disconnect fluid line
3. Disconnect valve air line
4. Remove the two socket head cap screws (1) from the fluid housing (2)
5. Pull the fluid housing away from the air cylinder assembly (10)
6. Clean Diaphragm (3) and fluid housing (2)
7. Reinstall the fluid housing (2).
8. Align the fluid housing mounting holes with diaphragm and air cylinder holes.
9. Reinsert the two socket head cap screws (1). Tighten in accordance with the Torque
specifications Chart below.
CAUTION: Make sure the fluid pressure is released before disassemble the valve.
NOTE: Avoid using sharp probes for cleaning. Any nicks or scratches on the diaphragm
or the sealing area of the fluid housing may cause leakage.

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8.2 To Change the Diaphragm
Tool required: Flat tip screwdriver, Snap ring flier, 7/64” hex wrench.
1. Remove the two socket head cap screws (1) from the fluid housing (2)
2. Pull the fluid housing away from the air cylinder assembly (10)
3. Remove the old diaphragm (3) by unscrew it in the counterclockwise direction.
4. Install the new diaphragm by threading it in the clockwise direction. Make sure the internal
thread on the diaphragm is not stripped or cross-threaded.
5. Hand tightened the diaphragm until it bottoms against shoulder on piston rod. At this point, do
not over tighten or loosen the diaphragm to align the diaphragm and air cylinder holes.
6. The valve is designed so that the fluid housing can be rotated in 45°increments to allow for
material input/output alignment. To align the holes of the diaphragm with the appropriate holes
in the air cylinder body, insert a small flat tip screwdriver through the hole in the stroke control
knob (8) and engage the piston rod slot. Turn the screwdriver clockwise to rotate the rod, piston
and diaphragm assembly until the appropriate holes are lined up.
7. Reinstall the fluid housing (2).
8. Align the fluid housing mounting holes with diaphragm and air cylinder holes.
9. Reinsert the two socket head cap screws (1). Tighten in accordance with the Torque
specifications Chart below.
Fluid Housing Material Torque specifications
Acetal (Delrin) 14 in lb (1.58 N-m)
UHMW and Teflon®7 in lb (0.79 N-m)