Edwina Dorsey Valves April 14th, 2019 - 12:35:00
Swagelok is a $1.3 Billion privately-held company which specializes in the design, manufacture and delivery of an ever expanding range of fluid system products and solutions. Swagelok provides knowledge, resources, innovations and value to customers worldwide through an exclusive network of authorized sales and service centers which assures their reputation for consistent performance, service and value in all that they do. Swagelok Valves are the result of metallurgy and materials science expertise built on decades of research into the physical properties of stainless steel, advanced alloys, flouropolymers and other plastics. This, along with new fluid system product development, and continual refinement of existing products, means that Swagelok Valves are cutting edge, reliable, easy to install, and guaranteed to be of the highest quality.
With the advent of the market brass ball valves, they immediately appreciated was evaluated, and the demand for these products increases, as well as their scope. Now such products can be found in any economic stall. However, despite their apparent similarity, not all ball valves are really reliable and durable. Along with high-quality Italian taps, more and more pushed over in the trade cheap Polish, Chinese and Turkish valves, whose quality is far from perfect? In the struggle for the vast US market, some sellers have begun to distribute cheap "consumer goods" for branded products, quite simply to sell a fake, so I'd like to give some practical advice to buyers' brass ball valves. As a rule, forgery in performance is much inferior to the original products. Their use in water and heating systems can lead to accidents and big material losses. Counterfeits can cause serious damage and human health.
My goal is either a fake - under cover, used well-known brand, at minimal cost to create an external object like a fake. First, what saves the underground businessmen, it is - raw. Shells taps and ball valves shall be manufactured from special grades of brass, the chemical composition of which in USA are regulated by GOST and abroad - national standards. These standards include the copper content 57-60%, zinc - up to 40%, lead within 0,8-2,2%. (Lead is required to make the brass surface hardness). Illegal vendors typically use non-ferrous metals, the content of impurities which are not controlled. As a result, manufactured valves, the percentage of lead content in which, studies show that reaches 5-7%. It is well known that an excess of lead in water is very harmful to health.
Swagelok Valves, as with all Swagelok products, are thoroughly tested, and the customer is assured that they will perform reliably, meet expectations of quality and are backed by the Swagelok Limited Lifetime guarantee. Valves are devices which are designed to open, close, or partially obstruct passageways in pipers, and in this way they regulate the flow of fluids and gasses. Valves have application over many different areas of many industries - this means they come in numerous designs and materials depending on the specifications they must meet. For this reason Swagelok produces top of the range Process, Instrumentation and Sanitary Valves, in a range of materials and end connections. Where necessary, Swagelok can manufacture or configure Valves to the special needs of a client's system requirements.
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.
Customers wanting the best in Needle Valves need look no further than Swagelok to meet all their needs. Swagelok Needle Valves are used in flow metering applications, where a constant, calibrated flow must be maintained. A Needle Valve has a long tapered point at the end of the valve stem that is lowered through the seat to restrict or block flow, as required, and a needle-shaped plunger on the end of the screw which exactly fits the point. Fluid flowing through the valve turns at 90 degrees, and passes through the orifice that is the seat for a rod with a cone shaped tip. The finely threaded stem, and large seat area allow for the precise calibration of resistance to flow. As the plunger is retracted, flow between is possible - until the plunger is completely retracted, fluid flow is impeded.