Force Main Comminutor Application
Force Main Comminutor Application
(OP)
Does anyone know of an application with respect to a comminutor inline AFTER a submersible pump station?
I am currently involved with a small WWTP project (already designed) that includes a comminutor in a valve vault, after a submersible pump. After talking to the sales rep, he tells me he has never seen (nor have I) a comminutor placed after a pump in a presssure situation, as the comminutor will typically work only with gravity. My thinking is that is was originally desinged to run only when the pump was pumping, and not continuously.
Just curious is anyone knows if this will work.
Brian
I am currently involved with a small WWTP project (already designed) that includes a comminutor in a valve vault, after a submersible pump. After talking to the sales rep, he tells me he has never seen (nor have I) a comminutor placed after a pump in a presssure situation, as the comminutor will typically work only with gravity. My thinking is that is was originally desinged to run only when the pump was pumping, and not continuously.
Just curious is anyone knows if this will work.
Brian





RE: Force Main Comminutor Application
Of course, there may be unusual design contraints that would require this, but I can't think of anything off the top of my head.
Also, the comminutor would be used for gravity flow, so if you put it downstream of a pump, the force main would go to gravity flow at the comminutor and the pump would have no effect on the downstream force main.
I suppose you could design a comminutor that could be sealed and used in pressure flow, but I don't know why this would be useful in a typical sanitary lift station and force main system.
RE: Force Main Comminutor Application
Brian
RE: Force Main Comminutor Application
That is some odd logic...usually grinder pumps are best at low flow situations. I'd definately be sanity checking that whole setup.
RE: Force Main Comminutor Application
Steve
RE: Force Main Comminutor Application
If the comminutor has been in this application for some time without maintenance, the comminutor may not be working anyway.