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29-11-2008, 08:06 PM #1
Installation of NRVS check valves
Hi,
Need your opinion...suggestion.. regarding installation of check valve type NRVS (installation direct to solenoid valve flange) in liquid lines in front of evaporator...
on suction lines will be installed PM-3 pressure regulator valves ... double temperature rooms
electrical heaters for defrosting - not hot gas..
refrigerant ammonia
from one Danfoss representative came an offer with suggestion to install above mentioned check valves .... .... what do you mean about check valve installation?
...this valve is flanged type and for me only increases installation costs and creates opportunities for leaks ... it is possible to use it only with new type of EVRA/EVRAT solenoid valves GGG 40.3 having direct flange mounting ( - of course, usually much more expensive
Best regards, Josip
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