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  • Flange Faces

    Flange Faces What is a Flange face? Different types of flange faces are used as the contact surfaces to seat the sealing gasket material. ASME B16.5 and B16.47 define various types of flange facings, including the raised face, the large male and female facings which have identical dimensions to...
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  • Types of Flanges

    Types of Flanges Flange types As already described before, the most used flange types ASME B16.5 are: Welding Neck, Slip On, Socket Weld, Lap Joint, Threaded and Blind flange. Below you will find a short description and definition of each type, completed with an detailed image. Most common flang...
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  • Pressure Classes of Flanges

    Pressure Classes of Flanges Forged steel flanges ASME B16.5 are made in seven primary Pressure Classes: 150 300 400 600 900 1500 2500 The concept of flange ratings likes clearly. A Class 300 flange can handle more pressure than a Class 150 flange, because a Class 300 flange are co...
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  • What is a flange?

    What is a Flange? Flanges General A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or screwed. Flanged joints are made by bolting together two fla...
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  • What is the difference between Pipe and Tube?

    What is the difference between Pipe and Tube? People use the words pipe and tube interchangeably, and they think that both are the same. However, there are significant differences between pipe and tube. The short answer is: A PIPE is a round tubular to distribute fluids and gases, designated by...
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  • Steel Pipe and Manufacturing Processes

    Steel Pipe and Manufacturing Processes Introduction The advent of rolling mill technology and its development during the first half of the nineteenth century also heralded in the industrial manufacture of tube and pipe. Initially, rolled strips of sheet were formed into a circular cross section b...
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  • Nominal Pipe Size

    Nominal Pipe Size What is Nominal Pipe Size? Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. The name NPS is based on the earlier “Iron Pipe Size” (IPS) system. That IPS system was established to designate th...
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  • Definition and Details of Pipe

    Definition and Details of Pipe What is a Pipe? Pipe is a hollow tube with round cross section for the conveyance of products. The products include fluids, gas, pellets, powders and more. The word pipe is used as distinguished from tube to apply to tubular products of dimensions commonly used for...
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  • Introduction to Pressure Seal valves

    Introduction to Pressure Seal valves Pressure Seal Valves Pressure seal construction is adopted for Valves for high pressure service, typically in excess of above 170 bar. The unique feature about the pressure seal Bonnet is that the body-Bonnet joints seals improves as the internal pressure in t...
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  • Introduction to Bellow Sealed valves

    Introduction to Bellow Sealed valves Bellow(s) Seal(ed) Valves Leakage at various points in pipelines found in chemical plants creates emissions. All such leakage points can be detected using various methods and instruments and should be noted by the plant engineer. Critical leakage points includ...
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  • Introduction to Butterfly valves

    Introduction to Butterfly valves Butterfly valves A Butterfly valve is a quarter-turn rotational motion valve, that is used to stop, regulate, and start flow. Butterfly valves are easy and fast to open. A 90° rotation of the handle provides a complete closure or opening of the valve. Large Butter...
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  • Introduction to Check valves

    Introduction to Check valves Check valves are automatic valves that open with forward flow and close with reverse flow. The pressure of the fluid passing through a system opens the valve, while any reversal of flow will close the valve. Exact operation will vary depending on the type of Check val...
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