Two way flow check valve ??

[machinistbcb]

I am in the process of finally plumbing in my wood boiler to my current system. I already have a flow check valve like the one pitcured below that my oil boiler feeds into the verticle port. The horizontal port on the flow check is currently plugged off. My qustions is can I use the horizontal port of the flow check to tie my woo boiler feed into the system. I am not quite sure how these two way flow checks work. Do the check flow in two directions ? Will it prevent the feed water from my wood boiler from going down into the oil boiler (which is what i want)

Thanks Brian

 

[chuck172]

No you can't
Read about the flow-check at this link:

http://taco-hvac.com/uploads/FileLibrary/100-2.1.pdf

 

[machinistbcb]

That may be the wrong link. It's info on a 0010 cric.

 

[chuck172]

I'm sorry, it is the wrong link. Try this one:
http://www.taco-hvac.com/en/products/Flo Chek/products.html?current_category=183

 

[machinistbcb]

I have already read that actually. What I am trying to find out is why is there an etra port on the flow check valve and if I can uae that port instead of having to buy another valve.

Thanks Brian

 

[chuck172]

The flow check can be used like a coupling, or an ell. You plug the not used port. You never use all three ports. The unused port must always be plugged.