Hi
We have a hydraulic system controlling a stop valve for the steam turbine. As per OEM, it is required to do test for this valve on daily basis
The supply oil to actuator is via a piping (hydraulic SAE flange) and the piping has a support. But I can see the piping sometimes vibrate during...
Hi all
I have an air extraction line from gas turbine compressor with 250 Psi pressure & 700 F Temp. This air is to be treated with aftercooler & pressure reducing valve and then to the air tank. The Desired final parameters are 90 Psi & maximum of 200 F which will be stored in instrument air...
Hi all,
We have the below parameters taken from our control system, and using below data I calculated the air speed and got around 66.4 m/s which is quit high
Data:
Air Temp: 605 F
Air Pressure: 121.6 psig
Calculated mass flow rate (calculated by control system): 25.6 lbm/s
Valve opening...
Hi All
Recently we had a failure on a motor shaft (attached)
the motor is vertical and connected to lube oil centrifugal pump via grid coupling
After the failure, we confirmed both motor shaft and pump shaft are rotating freely
The only finding was pump shaft runout to be 7 mils. We...
Hello All
We have a system described in the attached photo. We want to charge the system and increase its pressure into 35 psig so we can make a leak test on system flanges.
We have 3/4 plug connection where we want to connect it into a portable air compressor.
How can we calculate the...
Hi All
We have a minor leak (one drop every few seconds) from side entry ball valve. The location of leak is shown in attached picture. The leak is not that much but it is hazardous since the media is diesel.
The leak is coming from the bonnet stud. The valve is connected to a diesel tank with...
Hi All
We have a pulley arm crack as attached. The pulley is made of cast iron and rotation speed is around 257 RPM
considering this is cast iron and needs special welding procedure, we are thinking of applying Loctite or belzona epoxy glue as temporary fix till we get new one.
Interested to...
Dears
Is this a healthy way of installing the jaw Coupling? As you can see the shaft is not fully inserted in the coupling due to some dimensional restrictions. Is it OK?
https://files.engineering.com/getfile.aspx?folder=17fe5792-aa40-467d-bcaa-9ef81d6cf111&file=Screenshot_20210412_140027.jpg
Hello Dears
Need your help to evaluate the effect of making a cut in this area (shown in the picture) on load distribution. The reason of the cut to make space for the below valves so we can easily close/open. Will this make load more on some of the columns than the others ?
As I understand...
Dears
Kindly, I want to hear from you regarding this topic. The system is closed cooling system.
I believe it is difficult to attribute the sound you hear from centrifugal pump to be a cavitation especially if the discharge pressure is normal.
The last time we had a problem with this system...
Greetings
My question is regarding the single shielded and open bearing types. Are they designed to run with the cavity being full of grease or with a specific amount ?
Now if the manufacturer is recommending to put only a 5 gram of grease when greasing. wouldn't greasing the bearing on a...
