Elba Rutledge Valves May 08th, 2019 - 14:19:39
Ball - the heart of the valve. Leading manufacturers attach great importance to the quality of the surface of ball valves. Brass Balls are diamond grinding, they applied anticorrosion coating of nickel or chromium. As a result, the ball gets a perfect mirror surface. Symptom of products of low quality - a dim, muddy or rough surface of the ball.
As the efficiency and effectiveness of a manual sleeve valve depends on the quality and ability of the sleeve to meet the required material processing application, users must be familiar with the types of sleeves available. Whether their processing material application is related to chemical manufacturing or engineering, will determine which type of sleeve will best meet their specific needs.
Cases and Ball Valves in the products of leading manufacturers are made by hot pressing or hot forging. Manufacturers producing fake not spent on buying such technology and its products are manufactured by casting. These products are characterized by an uneven surface of the body, rolls, may have a mixed structure of the material - with aerial shells and, consequently, low reliability. Ball valves (balls) rigged valves are often not made of brass, and of transformer steel, coated or even without it. Steel balls quickly corrode and cease to be leak proof. Failure to invest in the copper alloy brass faucet body makes it suspiciously easy. Steel ball compensates for this lack of weight, masking the presence of thin-wall housing is unacceptable.
It is useful to say how counterfeit valves masquerading as the original. One of the techniques - misspelling the names of famous companies, such as, Bogati instead of Matca-Norca. Formally, this is not fake, because the original brand is not used. There are cases of writing only the names of countries, for example, USA, instead of adopting a made in Italy. The distortion of the famous logo, placing it, for example, not a diamond, but a square or a circle, also serves to confuse the buyer. Evidence of fraud may be the absence of any of the markings required for specific manufacturers. The sale of gas valves, and found such a primitive form of deception, as replacement faucet handles on native yellow - gas (gas valves are more expensive). Price savings may be too high, so choose the ball valves are safer from the range of recognized brands.
Generally speaking, the valve for low-pressure and non-corrosive fluid is made of cast iron or cast copper. The high or middle-pressure is made of cast steel or forged steel. As for the valve used in the high-temperature or high-pressure, it will select the alloyed steel as the main material. Beside, stainless steel, plastics, chlorimet such as titanium alloy or lead alloy are applicable for the main materials of the valve used for the corrosive fluid.
There are many types of ball valves that are extensively used in various industries depending upon their designs, sizes and pressure handling capacities. Full port, reduced port, cavity filler, V port, trunnion ball valves and multiport valves are the common ones.