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X-rays are commonly used to examine the inside of a weld in a steel oil pipe through a process known as radiographic testing. This non-destructive testing method allows for the detection of internal flaws, such as cracks or voids, by capturing images of the weld structure. Additionally, gamma rays can also be used for similar purposes, particularly in industrial radiography, providing insight into the integrity of the weld without damaging the material.

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How car-ber hydro testing works?

The National Board of Boiler and Pressure Vessel Inspectors interprets and enforces the ANSI / ASME codes within the pressure vessel industry throughout North America. "The National Board" stipulates that all pipe welds must have a pressure leak test applied to each assembly before that particular assembly can be put into service. As per B31.3 of the ASME codes the preferred method of testing the integrity of welds is through application of Hydrostatic pressure. All other NDT testing methods e.g. radiography (X-rays), magnetic particle examination, liquid penetrate examination etc. are considered variances to B31.3. Most vessels, flanges, valves and other various pipe assemblies are tested at the manufacturer's facility; the only portion of an assembly that remains untested is the weld (tie-in point) which connects the various assemblies under field conditions. In other instances a leaking flange may require replacement as part of an on-going maintenance program (between turnarounds) creating the need to isolate and hydro-test the connecting weld. It is to these specific areas of the pipe assembly that CAR-BER has focused attention. Traditionally the method of testing welds which connect assemblies in the field involves filling the entire system with testing medium and pressurizing to a pre-determined value (usually 1 1/2 times the working pressure) and maintaining that specific pressure for a pre-determined time. Such a methodology requires extensive person-hours to blank and purge the entire assembly and requires large amounts of medium to perform the test. The requirement for large amounts of medium means that a significant amount of medium must be lost in order to register a noticeable change in pressure. The minuscule amounts of medium required for the CAR-BER equipment to perform, translates to very precise pressure readings should the slightest volume of medium escape the pressurized vessel during testing procedures


Related Questions

What electromagnetic wave can be use to examin the inside of a weld in a steel oil pipe?

X-rays can be used to examine the inside of a weld in a steel oil pipe. X-rays can penetrate the steel and provide detailed images of the internal structure of the weld to detect defects or inconsistencies.


Kind of electromagnetic radiation used to examining the inside of a weild in a steel oil pipe?

X-rays are commonly used to examine the inside of a weld in a steel oil pipe because they can penetrate the material and provide detailed images of the weld quality without damaging the pipe. This non-destructive testing method is effective in identifying any defects or inconsistencies in the weld that may compromise the integrity of the pipeline.


Why is the pipe inside the solar panel black?

The pipe inside the solar panel is usually painted black because black is a good absorber of sunlight and helps to transfer heat more efficiently. The dark color helps to increase the effectiveness of heat transfer from the sun to the fluid circulating inside the pipe, which is then used to heat water or another medium in the system.


What is the effect of gamma rays on steel?

Gamma rays can damage the crystal lattice structure of steel, leading to changes in its properties such as strength and ductility. Prolonged exposure to gamma rays can cause steel to become brittle and more susceptible to failure under stress. Thus, it is important to limit the exposure of steel to gamma rays to maintain its structural integrity.


Does galvanised steel reflect uv rays?

no no


What does x-rays do to food?

Allows you to see what is inside it.


What materials X Rays and Gamma Rays can not penetrate?

X-rays and gamma rays can penetrate most materials, but they can be blocked by dense materials such as lead, concrete, or thick layers of steel. These materials are effective in shielding against X-rays and gamma rays due to their ability to absorb and scatter the radiation.


Why cant you see an object through a bent pipe?

You can't see an object through a bent pipe because light does not travel in straight lines when passing through the bent pipe. The light rays are refracted as they enter the pipe, causing the object to appear distorted or blocked from view due to the curve of the pipe.


Uses of physics in medical?

medical physics include: ultrasound: detecting structure inside body, scans, examining blood flow electromagnetic radiation: x-rays, CAT scans, endoscopes radioactivity: radioisotopes, positron emission tomography, imaging methogs magnetic imaging resonance (MRI)


Which type of radiation is used to make images of bones inside the body?

Xrays and CT scans


What wave use to diagnosis of bone fracture?

X-rays help doctors see broke bones, and also diseases inside of a human body.


If you need to fix a gap and fix an overbite what braces should youy use?

Only an orthodontist could tell you what you need after examining your mouth and taking X-rays.