Both flow and suck- back controls use a locking device that prevents unwanted changes. The air-operated valve is particularly effective for dispensing difficult, stringy materials. The valve is available with either an aluminum body that has a PTFE-impregnated, hard-anodized finish or an all-stainless body. Self-adjusting seals are available in either fluoroelastomer or PTFE. The shape of the valve, its mounting configuration, and the location and operation of the controls let the valve be used in machinery and workstations. Accessories include standard and custom nozzles, nozzle arrays, spray heads, and digital valve controllers.

Tridak,
144B Old Brookfield Rd., Danbury, Ct 06811,
(203) 798-7471,
tridak.com