mdsupabro
Mechanical
- Jun 1, 2007
- 5
Hello,
I’m an engineer at a power plant 1 hour north of Baltimore. I was visiting your site and had a pump question. My plant has 2 single stage liquid ring pumps. They are rated for 30 scfm (we remove 6 - 8 scfm) and they have a hogging capacity of 700 scfm. We have had our vacuum pumps fails 3 times in ten years. Twice the impellors have broken. Once the impellor ripped through the pump casing; fortunately know one was injury. A bad weld job was identified was the cause of one failure and cavitations was the other cause. Currently, because of the water temperature, we are forced to run with both vacuum pumps. We are looking to possibly purchasing another pump; however we need to identify the right pump for our plant. Our vacuum pumps are more or less meant to be hogging pumps (I think). We believe that our pumps are sized correctly, however one theory we have is that hogging vacuum pumps are not normally designed for continuous use; therefore our pumps have a short life span and that we should switch to two stage pumps. Is there any truth to this?
Thank you for your time and have a great day.
I’m an engineer at a power plant 1 hour north of Baltimore. I was visiting your site and had a pump question. My plant has 2 single stage liquid ring pumps. They are rated for 30 scfm (we remove 6 - 8 scfm) and they have a hogging capacity of 700 scfm. We have had our vacuum pumps fails 3 times in ten years. Twice the impellors have broken. Once the impellor ripped through the pump casing; fortunately know one was injury. A bad weld job was identified was the cause of one failure and cavitations was the other cause. Currently, because of the water temperature, we are forced to run with both vacuum pumps. We are looking to possibly purchasing another pump; however we need to identify the right pump for our plant. Our vacuum pumps are more or less meant to be hogging pumps (I think). We believe that our pumps are sized correctly, however one theory we have is that hogging vacuum pumps are not normally designed for continuous use; therefore our pumps have a short life span and that we should switch to two stage pumps. Is there any truth to this?
Thank you for your time and have a great day.
