welding joints

Types of engineering welding symbols and welding joints symbols in pipe and plate

The engineering welding symbols and standard There are 2 major welding standards recognized in the welding industry. The first one is European Standard (EN 2553 – Welded – Brazed and Soldered Joints – Symbolic Representation on Drawings) and the second is American Standard (AWS A2.4 – Standard Symbols For Welding, Brazing and Nondestructive Examination). Different jobs require different types of welding joints, as in different applications it will need to stand up to different needs and forces. There are basically five types of welding joints to bring the two metal parts together.   Basic Welding Joints Symbol in American standard (AWS-A2.4-2012), there is a distinction between the terms of weld symbol and welding symbol. The weld symbol indicates the type of weld and, when used, is a part of the welding symbol. In the present system, the joint is the basis of reference. The arrow side is the side of the joint to which the arrow of the symbol points. The other side is the side of the joint opposite the arrow side. Weld symbols shall be as shown in Figure 1. The symbols shall be drawn in contact with the reference line. The reference numeral for a weld –[…]

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understanding a pipeline pig detector

pipeline pig detector when doing a progressive cleaning pig or intelligent pig in a pipeline, workers install a transmitter on the back of the pig. This transmitter functions to transmit signals with distances of up to about 6 meters, but technically it can be up to 23 meters. Here are some types of transmitters that are often used: ITX 251, ITX 503, ITX 504, ITX 804 and ITX 806. ITX transmitters are available for all pipe sizes from 3 “to 56”. For smaller sizes up to 12 “, complete transmitter tools are available. For larger sizes, a bolt-on flange is used for easy mounting of the ITX to any cleaning or inspection tool. Transmitters can operate for quite a long time, which is up to 1000 hours. High signal range (distance up to 23m / 75ft) stainless steel housing so that it can be used on almost all types of fluids can be used on pipes with an operating pressure of 200 bar even on special requests, can be up to 300 bar pressure. can last up to 1000 hours. In some conditions, we can request special conditions so that the transmitter can withstand over 1000 hours. Maximum operating temperature[…]

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pig cleaning system

pig cleaning system

what is pig cleaning system? each oil and gas company is required to carry out pipeline inspection activities. Inspection methods that are often used vary according to company requirements. starting from UT conventional, LRUT, MTM, visual inspection to the most sophisticated method, namely ILI or often called pigging. based on my 15 years of experience in the inspection field, this pigging method is the most perfect inspection method with a relatively cheap price compared to the LRUT method. This pigging inspection process is carried out by inserting pig in the pipe without interrupting the pipe operation or stopping the flow in the pipe. Cleaning pigging vs smart pigging / ILI. Pigging operations include, but are not limited to, pipe cleaning and inspection. Cleaning pigging is used to clean the dirt in the pipe. impurities referred to include materials from the fluid itself or used material during pipe construction, namely sand, wax, scale, welding rod, gloves, etc. Smart pigging or ILI is used to determine the condition of pipe integrity, namely the thickness of the pipe, the sleeve attached to the pipe, the corrosion that occurs in the pipe and the features along the pipe. the data obtained is very detailed.[…]

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