Valve dispenses consistent deposits

New from Techcon Systems is the TS5622VU-DVD stainless-steel diaphragm valve.

New from Techcon Systems is the TS5622VU-DVD stainless-steel diaphragm valve.

The valve has been designed to dispense low- to medium-viscosity fluids and to deliver consistent deposits over a wide range of shot and bead sizes.

It is accurate to a fraction of a microlitre, making it an ideal choice for precision dispensing.

The new diaphragm valve features a stainless-steel fluid housing to ensure its compatibility with a wide variety of chemicals, and in particular those used in the manufacture of DVDs and CDs, such as UV cure adhesives, resins and lacquers.

DVD and CD manufacturers favour spin coating, a process in which a thin film is created by dropping a raw material solution onto a substrate, enabling the even spread of material.

No air bubbles are acceptable during this process or the coating will not be completely even.

The stainless-steel fluid housing on the TS5622VU-DVD stainless-steel diaphragm valve enables a consistently smooth fluid path to significantly reduce turbulent flow and air entrapment.

To assist in maintaining this consistency, the valve has a short opening stroke to provide an extremely fast and positive shutoff, and an external stroke control adjustment to make it easy to fine-tune the shot size.

Important in the development of the TS5622VU-DVD stainless-steel diaphragm valve was the provision of a lightweight (120g), compact design (27mm diameter by 88mm long), which allows for mounting flexibility and easy integration into most automated applications.

Speed was another important factor, and the new valve enables a high-speed operation of up to 400 cycles per minute.

Today's manufacturers are continually looking at cost reduction and keeping maintenance to a minimum is high on their agenda.

With this in mind Techcon Systems set demanding performance levels for the new valve, which is able to offer 2 million cycles before diaphragm replacement is required.

The valve is easy to maintain with user replaceable spare parts, including a fluid housing replacement kit and diaphragm replacement kit.

To reduce the cost of training, Techcon Systems designed the valve to be simple to operate and fully compatible with most pneumatic valve controllers.

Techcon Systems has conducted extensive trials on the TS5622VU-DVD stainless-steel diaphragm valve, which dispensed consistently, across all viscosity ranges.

The launch of the TS5622VU-DVD stainless-steel diaphragm valve effectively brings the next generation of sophisticated and efficient diaphragm valve to the marketplace.

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