Butt weld fittings is one of the most popular connection type in pipeline systems. It always been required in large quantities in different industries, and especially for the large diameter pipelines. What is Butt Weld FittingsButt weld is to connect pipes or fittings ends by welding. It’s a weldable steel pipe fitting that would allow to branch off, allow for change of direction of flow, attach auxiliary equipment, or reduce the size of the pipe. We aware the beveling is very important processes in the whole production procession of butt-welding pipe fittings, we always make beveling according to the standard … Continue reading Weld beveling for flange and fitting
ARE FLANGES FORGED OR CAST? Flanges can either be forged or cast. Both manufacturing methods have their advantages and disadvantages, depending on the application you have in mind for your flange. Here at Texas Flange, we primarily deal with forged flanges due to the outdated nature and lower standard of quality of cast flanges. Below, we will delve into the advantages and disadvantages of both forged steel flanges and cast iron flanges. Casting is the process in which the metal is heated until molten then poured into a mold or vessel to create the desired shape. They are only used in cases … Continue reading Forged Flanges vs Cast Flanges
The socket weld is a pipe attachment detail in which a pipe is inserted into a recessed area of a valve, fitting, or flange. The joint construction is a good choice wherever the benefits of high leakage integrity and great structural strength are important design considerations. Advantages of Socket Weld Pipe Fittings The socket weld pipe fittings can be used in place of threaded fittings, so the risk of leakage is much smaller. Socket weld pipe need not be beveled for weld preparation. The weld metal can not penetrate into the bore of the pipe. Construction costs are lower than with butt-welded joints due … Continue reading Why is the Gap needed on Socket Welds
After completed the Part 6: Opening Weld-size, we will continue to try on the Open/Close questions on Module ASME VIII – Nozzle Reinforcement on Vessel as a part of in-the-exam API 510 Body of knowledge (BOK) If you don’t know how API 510 … Continue reading API 510 Questions and Answers (ASME VIII – Nozzle Reinforcement)
DNV GL unveiled a methodology for managing safety and cost associated with corrosion under insulation (CUI) alongside new technology designed to support it. CUI occurs when water becomes trapped between insulation and the piping and vessels it is designed to … Continue reading Corrosion Under Insulation (CUI) – Mitigation methods
The majority of mechanical equipment found in oil and gas facilities belongs to the static equipment group, which comprises pressure vessels (drums, columns, reactors, filters) and heat exchangers (shell and tubes, plate and frame, air coolers). This article will contain cost-effective recommendations for design, materials, and fabrication. They aim to enable the inspector/surveyors/engineer/purchaser who is not an equipment specialist, to check that economical choices are made. The specification and selection of the equipment is the responsibility of the static equipment engineer, based on requirements specified by other disciplines, including process, materials and plant layout. Let’s start with the review of … Continue reading What is Static equipment in Oil & Gas?
Selection and Treatment of Water and Conduct of the Test, to Maintain the integrity of the System is a priority concern in new-building or construction project. Specially on Stainless-steel which is very sensitive to corrosion. 1.0 Introduction Welded fabrications are frequently tested hydrotested for pressure tightness. Unless properly conducted, this procedure can induce problems. It is important to avoid initiating corrosion of the fabrication by subjecting it to critical conditions outside the initial design constraints. Where the vessel is to handle materials which are later ingested, contamination must be avoided. Damage may be caused by the induction of latent corrosion … Continue reading What is water standards for hydrostatic testing?
What is sour service? Sour service is referred to exploration and production environments in oil and gas that have enough H2S that could cause “CRACKING” of metallic materials. The oil and gas industry recognize sour service as one of the … Continue reading What is Sour Service in OIL & GAS?
As a common hydrostatic test procedure, the test pressure will be taken from the piping system MAWP. Depending on the primary code applied, the test pressure can be 1.5 MAWP, or 1.3 MAWP + factors, or 1.15 MAWP… etc., Refer to What is MAWP, What is Max operation pressure, Hydrostatic test: What is the MAWP of the pressure vessel (ASME VIII) FITTING PRESSURE RATING PIPE PRESSURE RATING PIPING HYDRO-STATIC TEST COMPREHENSION Test Pressure vs MAWP (ASME VIII) Design Pressure Vs MAWP (API, ASME) MAWP is normally referred to as system maximum allowance working pressure. The fitting is small and is … Continue reading Hydrostatic test with Flange Joints (considering of Flange MAWP)