flow control - NH3 recirculated evaporator

[SimonBrown]

Hi

Other than the usual manual balancing valve, are there any other type of (perhaps automatic) liquid flow control or expansion devices that can be used to control ammonia flow rate of forced recirculation (pump) evaporator ?.

Simon

[US Iceman]

Simon,

Here are several links for the products I am aware of:

http://www.parker.com/rs/41-10C.pdf

http://www.parker.com/rs/41-15A.pdf

I hope that helps.

Best Regards,
US Iceman

[nh3wizard]

Hansen has motorized valve, and Parker/Seimens also has a valve for liquid feeds for NH3, 2 of our plants have these and they seem to work very well. Oh and Danfoss has one also

[kasperDK]

hi

aDanfoss CVQ pilot on PM vavle using EKC 361 or 366 as regulator
see www.danfoss.com

this is working Ok

[US Iceman]

Hi there,

Hansen has motorized valve, and Parker/Seimens also has a valve for liquid feeds for NH3...

Can you post some links to these please? I'm not sure I follow how a motorized valve would be used or controlled for a liquid feed/balancing valve for a recirc. evaporator.

[nh3wizard]

Hi there,



Can you post some links to these please? I'm not sure I follow how a motorized valve would be used or controlled for a liquid feed/balancing valve for a recirc. evaporator.

These are used for the liquid feeds to the recircs. Ill look for the links and post.