Hello, I am trying to size a relief valve for a "minimum flow/sample" loop. I have a pump operating at around 600psi feeding boilers. There is a small loop just off the discharge of the pump that is regulated to 50psi, and then ties back into the suction of the pump. The idea is to protect...
I've discovered that Leser offers a prox switch on their valve to indicate when it has lifted. Seems a bit more reliable than flow meter/detectors. Might have to investigate if other manufacturers have similar options.
Hello,
I have an application where we are removing the sulfur from natural gas via carbon beds at less than 15psig. We have relief valves on the tank, and if they were to pop off, we would obviously want to automatically shut off the supply.
Is there some type of sensor that could be placed...
I work for a consulting firm and we are currently investigating new software for analyzing heat transfer problems. We would like to be able to model heat exchangers, jackets, pipe tracing, and mixing. Any software that would potentiall help with sizing pumps would be helpful as well. I know...
I am trying to determine relief requirements on a plate & frame exchanger involving hot blowdown water and cold feed water.
Blowdown water: 250F cooled to 86F 24.5 GPM
Feed water: 86F heated to 93.8F 450 GPM
The exchanger is rated for 150 #.
The exchanger can be valve blocked...
Hello,
I nned to size a relief valve on the steam side (inlet, tubes) of a heat exchanger. The shell side material is like that of "mineral oil." The steam is at 125 psig and is in a 1/2" line. Where do I begin with this one? Do I just determine the relieving rate by using the flowrate of...
If anyone has any other suggestions for articles, I would appreciate the reference. I still have access to some databases through Purdue, so being able to save articles like that now would be great. Thanks!
The topics the covered, in powerpoint form were (they gave us printouts of the presentations):
Introduction, Basic Terminology, PRV Design and Operations, Codes and Standards, PRV Sizing and Selection, Two-phase flow sizing, Rupture Disks, Installation of Pressure Relief Devices, Relief System...
The three day course by Equity Engineering on June 19-21 was the class I attended. I thought it was very helpful and actually kind of enjoyable. The class was made to be interesting and the instructors were very easy to listen to for 3 days. I would recommend it to anyone thinking about...
Thanks for everyone's help and advice on this. I actually attended the API pressure relieving course last week, which was very helpful. I think I have the procedure/concepts down, however I still have a question I was hoping someone could help me with. The material I'm dealing with is very...
Well, sadly I AM a chemical engineer. However, I just recently graduated and, well, I'm pretty green. I've had good experience with lots of things, but just not this. (Plus the company won't tell us much about their material) I'll take your advice and see if I can work with someone else on...
Thank you both for you posts. I guess I did use the wrong terminology for this problem. I am having trouble determining the "required relieving capacity" for the valve. I have no idea how to predict what this material will do in an overpressure or fire case. So, I don't know what the...
I am trying to size a relief valve on a small mixing tank for a pilot plant operation. The worst case is for a very viscous material (65,000cP) and is blocked in fire case. Everywhere I have looked about finding the capacity of valve wants to know the orifice area. I thought that was what I...
