Short Body Check Valve

[steven17]

I need a 42 inch swing check valve for raw sewage service. Due to piping limitations, I am looking for a short body (such as wafer style) swing check valve for sewage pumping application. Full size check valve won't fit. Any suggestions (make and model)?

 

[itsleighton]

http://www.metraflex.com/double_disc.php.

I dont know is they go up to 42", but we used one of these in dallas for a similar situation.

 

[steven17]

Thanks for your suggestion, but the problem with the double disc type is the center shaft/pin which is in the way of sewage flow that carries a lot of solids (rags and debris). The double disc is good for water, but not for wastewater. I am hoping that someone with proven past experience would come up with a specific manufacturer and model number.

 

[bimr]

RitePro seems to make one:

flowtech-me.com/RitePro%202008-11.pdf


You can also try to talk Tyco or Cla_val into making one:

http://www.tycoflowcontrol-na.com/getlit.asp?lit=ld/PRCMC-0033-US.pdf

http://www.tristatecont.com/Cla_Val_pdf/501A.pdf

 

[steven17]

Thank you, bimr, for the information. I will be contacting those companies and see how they can help. The RitePro makes 42" valve, while Tyco and Cla-Val do not have 42", according to their websites.

I am wondering if anyone has successfully used these wafer swing check valves in raw sewage pumping stations.

 

[stanier]

Try Red vlave. They may custyom build a rubber check valve for you.

 

[steven17]

Yes, Red Valve is another option. But its body is quite large compared to the wafer body swing check valve. I will consider Red Valve as a last resort. Thanks.

 

[QualityTime]

As opposed to using a check valve can you route the discharge of each raw sewage pump directly into a channel?

 

[steven17]

This is an existing facility, and we do not have means to reroute the discharge piping to a channel.

 

[QualityTime]

You may have to look at different alternatives than the short body check valve. You are asking for trouble with that approach. Bite the bullet and do the right design thing otherwise you will make these various modifications for the short body check valve IN THE HOPE THAT IT WILL WORK. That will weigh on your mind for a long time and when it does not work....all of the rationale that you used to justify installing it will not make sense

 

[steven17]

I am still looking for past user references based on the short body wafer style swing check valve in sewage applications. I am reasonably positive that this type of valve was used successfully in raw sewage handling pump stations.

 

[QualityTime]

Can you put the swing check valve on the vertical???

http://www.valmatic.com/pdfs/CVtable.pdf

 

[steven17]

No, vertical installation is not a viable option.