Techcon TS1212 Disposable Pinch Tube Valve User Guide

Techcon TS1212 Disposable Pinch Tube Valve

Specifications

• Size: 3.7″ (94mm) long; 1.18″ (30mm) diameter
• Weight: 0.18 lb (83g)
• Fluid inlet port : Female luer lock
• Fluid outlet port: Male luer lock
• Air inlet port: 10-32 UNF-2B
• Maximum fluid pressure: 60 psi (4.1 bars)
• Minimum air pressure required: 50 psi (3.4 bars)
• Wetted parts: Standard – Polyethylene; Optional – Polypropylene
• Operating frequency: Exceeds 400 cycles/min.
• Flow rate at 60 psi (water): 2050 ml/min.
• Material viscosity range: Up to 45,000 Cps.
• Mounting hole: 1/4-20

Unpacking and Inspection

When you receive the TS1212 Disposable Pinch Tube Valve, carefully unpack and inspect the product for any damage. If there is any damage, please report it to the manufacturer.

Description

The TS1212 valve is designed to dispense low to medium-viscosity material with precise deposits over a wide range of shot sizes. It features an internal spring return, making it fully adaptable for use with Techcon Systems time/pressure controllers. The valve has a short opening stroke, providing fast and positive shut-off. It also has an external stroke control adjustment, allowing operators to fine-tune shot sizes.

Theory of Operation

• The TS1212 is a normally closed, disposable pinch tube valve.
• When air pressure is applied through port (1), it pushes the piston assembly (2) away from the seat (3), allowing fluid to flow from the valve fluid inlet port (4) to the valve fluid outlet port (5).
• Releasing the air pressure allows the spring (6) to return the piston to its position, closing the fluid path.

Setup Instructions

Before setting up the TS1212 valve, ensure that your plant air is properly filtered and dry. If not, it is recommended to use a 5-micron filter regulator.

The typical system setup for the TS1212 valve includes:

• TECHCON SYSTEMS TS5130 Controller or equivalent
• TS1212 Pinch Tube Valve
• Material constant air pulsed air fluid feed system

Refer to Figure 4.0 for a visual representation of the typical system setup.

Troubleshooting

(3.4 bars)
Inconsistent Fluid Flow| Dispense tip clogged or damaged| Replace tip
Fluid cured in a pinch tube| Replace with new tube
The stroke adjustment closed| Open stroke adjustment counterclockwise
Fluid pressure fluctuating| Make sure fluid pressure is constant
The valve operating pressure is too low| Increased valve pressure to 50 psi (3.4 bars)
Valve open time is not consistent| Check to make sure the valve controller is providing a
consistent output
Air trapped in the fluid line| Purge valve

Spare Parts and Accessories

For spare parts and accessories for the TS1212 valve, please refer to page 9 of the user manual.

Warranty

• The TS1212 Disposable Pinch Tube Valve comes with a warranty.
• For warranty details, please refer to page 11 of the user manual.

FAQ

Q: Can I use the TS1212 valve with other controllers?

• A: Yes, the TS1212 valve is fully adaptable for use with Techcon Systems time/pressure controllers or equivalent.

Q: What is the maximum fluid pressure supported by the TS1212 valve?

• A: The TS1212 valve can handle a maximum fluid pressure of 60 psi (4.1 bars).

Q: What is the recommended air pressure for the TS1212 valve?

• A: The minimum air pressure required is 50 psi (3.4 bars).

Q: What is the operating frequency of the TS1212 valve?

• A: The TS1212 valve exceeds 400 cycles/min.

SPECIFICATIONS

• Size: 3.7” (94mm) long; 1.18”(30mm) diameter
• Weight: 0.18 lb (83g)
• Fluid inlet port: Female luer lock
• Fluid outlet port: Male luer lock
• Air inlet port: 10-32 UNF-2B
• Maximum fluid pressure: 60 psi (4.1 bars)
• Minimum air pressure required: 50 psi (3.4 bars)
• Wetted parts: Standard: Polyethylene
• Optional: Polypropylene
• Operating frequency: Exceeds 400 cycles/min.
• Flow rate at 60 psi (water): 2050 ml/min.
• Material viscosity range: Up to 45,000 Cps.

UNPACKING AND INSPECTION

• Carefully unpack the valve and examine the items contained in the carton.

These will include:

• Valve Assembly
• Sample Pinch Tubes and Needle Kit
• User guide
• Valve Air Hose
• Inspect the unit for any damage which may have occurred in transit. If such damage has occurred, notify the carrier at once.
• Damage claims must be made by the consignee to the carrier and should be reported to the manufacturer.

DESCRIPTION

• The TS1212 valve is designed to dispense low to medium-viscosity material with precise deposits over a wide range of shot sizes. An internal spring return makes the valve fully adaptable for use with Techcon Systems time/pressure controllers. A short opening stroke provides an extremely fast, positive shut-off.
• An external stroke control adjustment makes it easy for the operator to fine-tune shot sizes.

THEORY OF OPERATION

• The TS1212 is a normally closed, disposable pinch tube valve. Air pressures through port (1) pushes the piston assembly (2) away from the seat (3) allowing fluid to flow from the valve fluid inlet port (4) to the valve fluid outlet port (5).
• Relieving the input air pressure allows the spring (6) to return the piston to its position to close the fluid path.

SET UP INSTRUCTIONS

Refer to Figure 3.0

1. Install a new pinch tube in the valve. Following instructions in Section 6. “Pinch tube replacement” on page 8.
2. If desired, mount the valve to the bracket included.
3. Connect fluid feed line to valve inlet port (1).
4. Install valve actuating air line to air inlet port (2)
5. Connect the valve air line to an approved valve controller.
6. Set the fluid reservoir pressure. Do not exceed 60 psi (4.1bars)
7. Make sure all connections are tight
8. Place the container under the valve outlet and activate the valve until the fluid flows steadily.
9. Attach the appropriate dispense tip to the luer lock outlet fitting (3).

The amount of fluid that flows through the valve is determined by:

• Flow control adjustment- Turn adjustment screw (4) counterclockwise to increase fluid flow rate and clockwise to decrease fluid flow rate.
• Length of actuation, set at controller (Valve open time).
• Fluid reservoir pressure.
• Dispensing tip size.

TYPICAL SYSTEM SET UP

TROUBLESHOOTING

is constant
The valve operating pressure is too low| Increased valve pressure to 50 psi (3.4 bars)
Valve open time is not consistent| Check to make sure the valve controller is providing a consistent output
Air trapped in the fluid line| Purge valve
Decrease in fluid flow| The pinch tube loses its flexibility| Replace with new tube
Fluid drools after the valve closes, eventually stopping| Air trapped in a fluid line| Purge valve
Steady drip| The pinch tube is not installed properly| Re-install the tube, follow instructions

PINCH TUBE REPLACEMENT

CAUTION: Make sure the fluid pressure is released before disassembling the valve.

Refer to figure 5.0

1. Release fluid pressure.
2. Disconnect the fluid line.
3. Disconnect the valve air line.
4. Remove the valve cap (1), the spring (6), and the shutoff piston (5)
5. Lift the two ends of the tube (2) out of the grooves of the valve body (3).
6. Hold the pinch tube at the female luer lock fitting and pull it out of the valve body.
7. Dispose of the used pinch tube in an appropriate waste container.
8. Install a new pinch tube by inserting the male fitting of the tube through the valve body.
9. Snapped both ends of the pinch tube into the groove of the valve body.
10. Reinstall the shutoff piston, the spring, and the flange.

SPARE PARTS AND ACCESSORIES

SPARE PARTS:

Figure 6.0

Replacement Tube:

1212-004-100PK

| ****

M X F

| ****

0.125 (3.18)

| POLYURETHANE NATURAL

1212-004-200PK

| ****

M X M

| ****

0.125 (3.18)

| POLYURETHANE NATURAL

1212-004-100BPK

| ****

M X F

| ****

0.125 (3.18)

| POLYURETHANE BLACK

ACCESSORIES

Bench mounting kit:

LIMITED WARRANTY

• The manufacturer warrants this product to the original purchaser for one (1) year from the date of purchase to be free from defects in material and workmanship, but not against damages by misuse, negligence, accident, faulty installations, and instructions.
• The manufacturer will repair or replace (at the factory’s option), free of charge, any component of the equipment thus found to be defective, on return of the component “PREPAID” to the factory during the warranty period. In no event shall any liability or obligation of the Manufacturer arising from this warranty exceed the purchase price of the equipment. This warranty is only valid if the defective product is returned as a complete assembly without physical damage. The Manufacturer’s liability, as stated herein, cannot be altered or enlarged except by a written statement signed by an officer of the company. In no event shall the Manufacturer be liable for consequential or incidental damages. A return authorization is required from OK International before shipping a defective unit to the factory.
• Manufacturer reserves the right to make engineering product modifications without notice.

Send warranty returns to:

• OK International
• 12151 Monarch Street
• Garden Grove, Ca 92841

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