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The stainless steel means that the material will not get rust or corrosion. It is very important for valve industry, especially when handling the corrosion fluid. The most used stainless steel in valve industry is as following; Stainless Steel CF8/SS304 CF8M/SS316 CF3/SS304L CF3M/SS316L In order to ... Read More
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In the valve industry, the carbon steel is the most used material. Due to the low cost and good performance, it has some big advantage over the other material. Following TEKO would to share some info of the carbon steel in the valve industry. First, we need to know what is steel and its major ... Read More
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Difference between eccentric design and concentric design butterfly valve The butterfly valves is mostly used valves, with the advantage of low cost and compact design. Mainly they are divided into two kind of designs: eccentric and concentric. Center line butterfly valve is widely used in water ... Read More
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Step1: Flange dimensions We need to design the flanges, according to API600, the flange is as per ASME B16.5 including the OD, PCD, gasket height and gasket diameter, thickness etc. Step 2 Face to face dimensions and wall thickness For the face to face dimensions, look up the ASME B16.34 For the ... Read More
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In the ball valve industry, the most important components to seal the flow control system is the valve seat or seal face. The ball cooperates with the valve seat to achieve the seal. To meet different medium applications, we TEKO have developed several ball seat designs: There are four types of ball ... Read More
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What is the different between API609 Category A and Category B? API 609 is the American design standard forbutterfly valves, which is divided into Category A and B. Category A valves are "concentric" type. Also known as rubber lined butterfly valves. These are popular in low pressure systems (Class ... Read More
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There are 5 types of ball valve body. 1. One piece ball valve. There is only one piece body. The advantage is that there is no leakage point on the body. How the one piece ball valve is assembled? A big bore hole will be drilled at one side, and a thread cover will seal after ball and ball seat are ... Read More
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As we talked before, the ASME B16.34 is a basic design for valve industry, including the valve sizes, valve pressure class, valve material, valve body wall thickness, pressure and temperature rating. API 6D is for valve specially in petroleum and natural gas industry.So there are 3 differences ... Read More
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What is DBB and DIB ball valve? First we need to clarify two kinds of sealing: the SPE and DPE. SPE single piston effect: it is also call unidirectional seat design. When upstream pressure is higher than cavity pressure, the seat will seal; while the cavity pressure is higher than upstream pressure, ... Read More
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