Does anyone know where I can locate a chart for metals to be used in wasterwater. In particular, I want a comparison of 304 versus 316 stainless. I'm look for properties such as corrosion & erosion charicteristic and alternate material. I've searched the internet and haven't found a site...
I have been asked to size a pump pit & pumps for a storm water retention pond. I have been dealing in pressure systems for so long that I've forgotten how to calculate gravity flow. How do I determine of the pumps be able to get inlet flow. The retention pond holds approximately 1.25 million...
Excuse my ignorance but I have a pump question. I have two suppliers of pumps requesting opposite bearings in the pumps. One is suggesting sleeve bearings and the other roller bearings. The pumps are split case horizontal pumps and will run at approximately 900 rpm with 350 hp motors. The...
I had posted the below in the Mechanical forum yesterday and have recieved no responses. Any help here?
I am reviewing specs for pump units for a water system. These are city water (potable water) and approx 50 mgd pumps. The casings are specified as DI or CI. Is there a quality standard for...
I am reviewing specs for pump units for a water system. These are city water (potable water) and approx 50 mgd pumps. The casings are specified as DI or CI. Is there a quality standard for porosity and integrity of the casing? This is not a critical application so I don't think that I can...
I am reviewing specs for pump units for a water system. These are city water (potable water) and approx 50 mgd pumps. The casings are specified as DI or CI. Is there a quality standard for porosity and integrity of the casing? This is not a critical application so I don't think that I can...
We have a developer that built an embankment that has failed. Near this embankment, we have a buried 48" pipeline. The line is welded steel carrying municipal water. The question I have been asked is when will the pipe fail due to erosion. I have performed a simple beam analysis using the...
I would appreciate if someone could supply a source of large diameter gate valves (not knife gate). I only found up to 48" on the internet. I am looking for 72".
