With the formalising of an agreement between Econosto’s Ball Valves UK Ltd and Diaval, a new range of valves has been launched into the UK chemical, process and petrochemical industries. Interchangeable with all competitive diaphragm valves currently available, Diaval developed its valves to have a higher specification with a lower price structure. The diaphragm valve is one of the simpler designs yet it offers a wide range of performance, versatility and chemical resistance. The Diaval range now stocked by Ball Valves UK is available off-the-shelf in all standard sizes from 15–300 mm in the weir type design and 25–250 mm for the straight through type. The weir style also makes an good control valve as the linear characteristics provides for 5% open gives 5% flow, 10% open, 10% flow and so on. Another feature of the range is the omission of cast iron as a material option. Instead, ductile iron is the preferred standard material offered at no cost premium. Optional materials such as cast steel, stainless steels and chromium iron can suit more demanding or hostile application environments. Linings increase purity, reduce abrasion and minimise corrosion. The diaphragm materials are resilient and provide a leak-tight shut-off, isolating all bonnet components from the line fluid. Steel reinforced diaphragms for vacuum applications are available on valves of 3” and above. Almost all actuators can be accommodated on the valve and all are PED compliant and DIN certified.
