We suspect corrosion in the HAZ on a circular seam of a vessel.
We had two kinds of UT inspection - Phased Array and Time of Flight - with quite different results. The inspections were done while the vessel was in operation.
We will know the truth soon, when we have a turnaround and enter the...
We suspect corrosion in the HAZ on a circular seam of a vessel.
We had two kinds of UT inspection - Phased Array and Time of Flight - with quite different results. The inspections were done while the vessel was in operation.
We will know the truth soon, when we have a turnaround and enter the...
The standard flanges in HP Urea loops are lens rings per DIN standard.
However, our pipefitters prefer to use ANSI RTJ flanges, as they find them easier to assemble. In this case the best practice recommends making saw cuts in the rings, to have only one point of contact to the flange groove and...
How are the tolerances in B16.5, para 7.2 measured?
Where is the center, the end and the contact surface (as in contact surface to contact surface)?
Thanks
M
We have a plunger pump operating at 335 rpm.
Some time ago a backup was added. The backup pump is smaller and operates at 786 rpm. None of the pumps has a pulsation dampener.
The flowmeter on the common discharge works OK with the larger pump, but shows erratic readings with the smaller pump...
We have a plunger pump operating at 335 rpm.
Some time ago a backup was added. The backup pump is smaller and operates at 786 rpm. None of the pumps has a pulsation dampener.
The flowmeter on the common discharge works OK with the larger pump, but shows erratic readings with the smaller pump...
Hello,
I work in a fertilizer plant in Canada. We use Bently System 1 for on-line monitoring of the large machines. We are in the process of introducing a Snapshot portable device for smaller rotating equipment. We have many questions and GE doesn't have all the answers.
Any other Snapshot...
I have to mark the Safe Working Load on a monorail structure.
The structure was certified by an engineer for 2 t.
However, the hoist on the track only has a 1.5 t capacity.
I am afraid that if I mark "SWL=2t" on the track someone could overload the hoist.
What does the code say? Any advice is...
Our plant produces urea granules in rotary drum granulators. Droplets and dust of the product are pulled back by the induced airflow through the granulators and stick to the walls and roof of the breech. Removing the build-up is hard and dangerous - big chunks can fall on the workers.
I am...
We seem to have a small leak on a pipe carrying syngas - 56% H2.
The line is made of SA-516-70 pressure containing shell with SA-240-T310 liner in contact with the gas and refractory between the two. A leak would mean that both liner and shell are cracked.
I would like to ask what could be the...
I also posted this question on the Piping forum, I don't know who would be more qualified to answer.
I am appealing to Canadian engineers:
I am working on a waste water treatment plant. We have piping for water and similar at low pressure and some aeration pipes at 30 kPa (4.5 psi).
One of my...
I am appealing to Canadian engineers:
I am working on a waste water treatment plant. We have piping for water and similar at low pressure and some aeration pipes at 30 kPa (4.5 psi).
One of my colleagues, with an oil and gas background, claims all fittings require CRN numbers, based on CSA B51...
I am a mechanical engineer and a car enthusiast, but not an automotive engineer, so I am asking for some very technical advice:
I want to install aftermarket wheels on my car and I need to use hub-centric rings. I would like to know what are the standard tolerances on the hub OD/wheel ID and...
We are installing several air cooled heat exchangers, for different services, in a row, next to each other.
We will try to have the top of all the coolers at the same elevation and leave about 0.5m (1.5 ft) between them.
Are there any other recommendations for avoiding accidental hot air...
I have to design an inlet distributer pipe for a produced oil tank.
Ususally these are horizontal pipes with a number of slots or holes for distributing the flow across the lower part of the tank.
In this case we want to promote the release of gases from the incoming liquid. Gases should be...
I am working on a floating suction system in a large tank.
Three articulated suction arms, made of 24" pipe, will be suspended from floats so the intakes are about 1m below the surface. The problem is to monitor the position of the suction pipes. The pipes should rise and lower with the liquid...
