Designed to dispense low to medium viscosity materials with precision accuracy over a wide range of shot and bead sizes down to a fraction of a micro litre. An internal spring return makes the valves fully adaptable for use with TechconSystmes time/pressure controllers. A short opening stroke provides extremely fast, positive shut off. An external stroke control adjustment makes it easy for the operator to fine tune shot sizes. TS5623 is manually activated. HU for CA nAdhesive. HD for UV Adhesive