Dear All,
I have a situation where on removal of a blind flange on the vessel accsess hole it was observed that the stud ( 3/4-10UNC-2A)was bent approximately 1/16" ( measure at the tip of 5 1/8" long stud). Further review suggested that the the access hole stud holes got skewed.
The...
Hi
A class 3-1/2" 900 RF Blind flange has some interference when mounted on the boiler opening due to misalignment of the stud holes. This is due to incorrect drilling of the stud holes on the boiler face at an angle which has a few bent studs installed ( off by 1/16"). While...
Gents,
Thanks for your help Pumping manual 9th edition TC Dickenson provides nice comparison.
Lochie,
I also believe the same; we are looking at the maintenance records to get a feel for the recurrence of the problem.
thanks for your input
Friends,
We are doing an evaluation on replacement of Rotary external gear pump with mechanical seals with a magnetic drive sealless internal gear pump.
The application is for Lubricating Oil recirculation ( continuous duty):
Flowrate of 26USGPM ,
Pressure of 25 psig
Temperature of 43.3 deg...
Can any body guide me to articles dealing with interface issues with stainless steel and carbon steel fittings ?
Any help would be much appreciated.
Regards
Pardal,
sorry to be late in responding. I appreciate your help. It is obvious you are talking real life experience. To summarize your thoughtful email.
a) STRAINER
Let the suction be as free as possible :
Avoid any restrictive device at the inlet. In fact, their is a provision at the...
Pardal,
FYI
Flow to handle: 26USGPM
Kind of oil:Lube Oil(superturbolfo 32)
It´s
specific weight:0.87
sepecific viscosity:33.4
Tank temperature:40 deg c
mean size of the particulate to be filtered:30-50 micron
Thanks
Friends,
I have a rotary gear pump for lube oil pumping having a negative suction lift of 20". A strainer /footvalve arrangement is proposed a the suction to remove particulates and maintain the suction line primed.
Do you recommend this configuration ? If so any design guidelines (...
