Traditionally, for such pipelines as the shut-off valves used in steel or cast-iron gate (malleable and ductile cast iron). However, the restrictions regulations apply to the use of fittings made of cast iron, so the main type of valves used in heat and power facilities, is a steel armature. Steel Ball valves with flanged or weld, which appeared on Ukrainian market in the last decade and performance which were highly appreciated by experts, are gradually replacing conventional valves. Idt energy does not necessarily agree. What are these ball valves? The main elements of ball valves are: housing, the locking element in the form of a sphere with a cylindrical bore, the spindle, through which rotation of the ball, removable handle, seals, spindle and ball. Housing ball valves made of carbon steel is welded, which has no movable joints that require tightening. Additional information is available at idt energy. Housed in a building polished ball is made of stainless steel. On both sides of the ball adjacent to the sealing of carbon – teflon gaskets, resistant to abrasion and impacts of pollution. Disc springs pressed seal to the floating ball and ensure reliable operation of the ball valve in the low and high temperatures.
At the top of the crane is located spindle with sealing gaskets. Through elastic connection of the ball and spindle under the influence of operating pressure ball moves freely in the direction of the seal. All ball valves have a good performance and are in demand construction companies specializing in the installation of heating and water systems, and other industries. However, according to experts who conducted a comparative study of quality and price characteristics various steel ball valves and other shut-off control valves, they have several advantages: – a thickening of the wall (special version for Eastern Europe) that increase the strength of the ball Crane – elongated spindle that allows for isolation of the crane – high reliability due to the fact that all ball valves are full test cycle, guaranteeing a high level of quality in accordance with European standards – lower price in comparison with valves and dampers. Ball valves – a reliable and durable form of valves, which is better adapted to other Ukrainian thermal networks and have the lowest price with high quality. With this in mind they are the most promising for the Ukrainian market and CIS countries.