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[February 2002]
DMN Launches New Ball Type Diverter for Abrasive Products
DMN (Holland and UK) has developed a new ball type diverter (BTD) valve specifically designed to converge or diverge abrasive products in pneumatic conveying systems. The diverter valve is also suitable for systems having relatively high pressures and temperatures, e.g. thermoelectric power stations (coal and fuel oil ash), incinerators, foundries, cement, glass, ceramic, limestone, gypsum and chemical factories.The diverter can be used for both diverting and converging. When diverting, the product itself provides the wear surface (most common applications). When converging, the impact area of the product on the diverter has been considerably strengthened.
The design of the diverter is said to ensure that the higher the positive pressure, the tighter the seal. This is the result of the ball and seal being pushed firmly into its seating. The seals can be replaced with the valve in place by removing the two side covers. The valve is operated by using a double acting pneumatic actuator with a 5/2 double acting solenoid and position confirmation switch.
The BTD can be used in systems with positive pressures up to 6 bar/g and negative pressures up to minus 0.5 bar/g. The standard configuration can be used for temperatures from minus 10°C up to +150°C.
The BTD is made from Ductile Spheroidal cast iron and is available in seven sizes in the range 65mm to 250mm.
ENDS