To date RGR Technologies South Africa has successfully supplied 3000 high-pressure RELIABALL isolating valves to the mining industry. The valves have proven to outperform conventional type ball valves, gate valves and plug valves in high pressure isolating installations. Problematic gate valves can easily be replaced with the lug type isolating valve with matching face-to-face dimensions. These valves are supplied in sizes 2-24” full bore, pressure class 300-2500#, with flange, BW or clamp end connections and with gearbox, electrical, pneumatic or hydraulic actuators. Metal seat rings assemblies are locked in the body halves with the PTFE soft seal locked by a retainer ring in the ball and the body seat rings are manufactured from heat-treated A747 stainless steel. Typical applications are for isolation, bi-directional, drip- & bubble tight in a temperature range of –20 to +180ºC. RGR Technologies will be exhibiting RELIABALL valves at stand 810 in the CBI pavilion at Valve World 2004 Conference and Exhibition in Maastricht in November.