Viega’s ProPress Zero Lead ball valves for Viega ProPress systems are made from silicon-bronze alloy and engineered for press technology. The Smart Connect feature helps installers identify unpressed fittings during pressure-testing. Certified ASME A112.4-2004 and NSF-61G in sizes from 1/2” to 2”, they are suitable for use with ProPress fittings in copper for potable water applications. Installers have a choice of stems in the press x press configuration ball valves, either Eco Brass or 316 stainless steel.