34815 Spheri Valv broch _12pp - Mac Process Mac Process

fourSpheri Valve Succeeds Where Others Fail at LafargeAt Lafarge’s Westbury Works in the UK, a complex arrangement of divertervalves is used to route highly abrasive cement powder to any of 10storage silos. The life of the original valves was between 3 and 6 months.A 12 month trial conducted by Lafarge indicated that Clyde‘Spheri Valves’ would last for approximately 2 years - in fact, the valveswere still operating after four years - dramatically exceeding even themost optimistic of forecasts.Spheri Valves have now been installed at other Lafarge plants aroundthe world.From Fine Abrasive Powders to Cohesive MaterialsDifferent raw materials can be specified for the dome and a choice ofsurface coatings is also available. The dome is usually produced from CastIron, S G Iron or Stainless Steel, but other materials and designs will beconsidered on application.Surface coating options for thedome include:1. Chrome - For sticky and abrasive materials2. ENP or Tungsten Carbide - For abrasive materials3. Epoxy Resin - For corrosive materials4. Reinforced PTFE - For food, sticky or wet materialsThese coatings can also be extended to the internal surfaces of the valvebody and the adaptors.