Danfoss NRVT Installation guide
Installation Guide
Check valve
Type NRVT
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Refrigerants: R744 (CO2) |
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Temperature range (TS): -40 °C – 150 °C / -40 °F – 302 °F |
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Max. working pressure (PS/MWP): 140 bar / 2031 psig |
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Warning: |
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This valve is UL certified for use in CO2(R744) systems only. The design pressure shall not be less than the |
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value outlined in section 9.2 of ANSI/ ASHRAE 15 for the refrigerant used in the system. |
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Only authorized persons are allowed to install this valve, as closing can cause build-up of excessive |
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pressure in the system. |
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Possible orientations(hard spring) |
Brazing |
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Min. 5% Ag |
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Danfoss 20-8015
It is possible vertical, horizontal or inclined mounting |
Max. 150 °C / 302 °F |
Risk orientations(soft spring) |
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Dry N2 |
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45° |
45° |
Danfoss 20-8041
Internal leak risk orientations for soft spring
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© Danfoss | Climate Solutions | 2022.02 |
AN400564784627en-000201 | 1 |
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