25 February 2021
Sign up to our newsletterWant more news like this? Sign up to our newsletter.

What is a jetting valve and when should I use it?

Jetting valve technology enables high-speed, continuous, non-contact dispensing of dots of extremely small size, while offering a high degree of accuracy and repeatability. Here Peter Swanson, managing director of adhesives specialist Intertronics, discusses jetting valves in further detail.

A jetting valve can deposit material at a controlled volumetric size as a drop. During the jetting process, a small chamber is filled with material and ejected by firing a tappet through the chamber ― using either piezo or high energy pneumatics to achieve very fast tappet movement ― causing the material to exit, or jet, from a nozzle

Jetting valves may be useful for dispensing adhesives, greases and oils, and they may also be able to dispense more challenging materials like anaerobic or cyanoacrylate adhesives or filled materials like solder paste. Dependent on the thixotropy, jetting valves can dispense viscosities up to 2,000,000 mPa.s.

One key advantage of jetting valves is that they operate at high speeds of up to 3,000 Hz with high accuracy. Volumes can therefore be built up quickly, with very fast, multiple shots. Conventional dispensing valves require a Z-axis movement to touch down the liquid onto the surface in order to effect a transfer, with the requisite positional tolerance. Jetting valves deposit the material with no contact, so the positioning requires less movement and is more forgiving of part and tooling tolerances; this also contributes to enhanced process speed. The jetting action can limit material stringing, which otherwise might require special programming in order to apply accurately.

Jetting enables quantities of less than one microlitre to be precisely dispensed. The rising miniaturisation of individual components in production processes may demand smaller beads and lines, while maintaining high throughput and consistent reliability and repeatability, and jetting could be considered in this case.

Another advantage of jetting valves is the ability to dispense consistently on substrates with an irregular surface, unusual geometry, or orientation. With a usual dispensing valve, where the material is required to be direct contact with both the needle and the substrate during dispensing, an irregular surface can lead to poor transfer to the surface or damage to the dispensing needle. Jetting technology is also capable of dispensing into grooves and cavities, onto vertical faces, and inside annular rings and tubes.

One example of a jetting valve technology is the new Vermes MDS 1560. It can deal with a wide range of viscosities and dispense down to shot sizes of less than 1 nl. The valve can be mounted to dispensing automation or robotics and is simple to set up and adjust.


Related Websites


Related Companies


Similar Articles

Bondloc renews ISO 9001

Bondloc UK Ltd, a British manufacturer of industrial adhesives and sealants has had its Quality Management System (QMS) recertified to ISO 9001:2015 after an audit in January 2021.

bonding solution for Ford

When Ford Component Manufacturing needed a quick, simple and practical assembly solution for one of its laminated metal shim pack products, FAST Live exhibitor Intertronics ...

Adhesives vending machine

FAST Live 2020 Exhibitor Staytite has come to the aid of customers by introducing an innovative new solution to the occasional and inconvenient ‘Work is temporarily held up ...

Consider this…

When specifying an adhesive, shelf life, working life and cure speed are selection factors to consider. A good understanding of these factors can help manufacturers improve ...

Dispensing boosts efficiency

Long term relationship building can help companies grow and prosper. Working with Chemique Adhesives has benefitted FOAMtech, a distributor and fabricator of thermal insulation ...

Precision in small doses

Here Paul Whitehead, key account manager at adhesives specialist Intertronics, shares his thoughts on the precise metering, mixing and dispensing of small amounts of two-part ...

Fisnar's dispense controller

Fisnar, manufacturer of precision fluid dispensing equipment, has launched its DC50 digital dispense controller.

Ellsworth Adhesives Europe exp

Ellsworth Adhesives Europe, a leading distributor of adhesives, specialty chemicals and adhesive dispensing equipment, is pleased to announce the launch of a new Irish division. ...

New Permabond® TA4207

Permabond will be exhibiting at the Advanced Engineering Show at the NEC on 30th & 31st October where we will be showcasing our new Permabond® TA4207, a multi-purpose, 2-part, 1:1 ...