The Tridak 775 precision dispense valve is designed to deposit accurate amounts of all flowable materials. The valve features easily adjustable control over both the rate at which the material flows and the amount of material that is sucked back at the end of a dispense cycle. Both the flow and suck-back controls incorporate a locking device that prevents any unwanted changes. With the option to choose an aluminum body with a polytetrafluoroethylene-impregnated, hard-anodized finish or an all-stainless body, this air-operated valve is particularly effective for dispensing difficult stringy materials. The self-adjusting seals are available in either a fluoroelastomer or polytetrafluoroethylene (Teflon). Optional accessories include standard and custom nozzles, nozzle arrays, spray heads and digital valve controllers.