Installation Guide
Check valve
Type NRV and NRVH
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Refrigerants:
For a complete list of approved refrigerants, visit http://store.danfoss.com/ and search for individual code numbers, where refrigerants are listed as part of product details.
Note: -Flare/face seal connections are only approved for A1 and A2L refrigerants.
Applicable to A1, A2, A2L and A3 refrigerants as accepted by Danfoss, excluding R717 and to noncorrosive gases/liquids dependent on sealing material compatibility. The design pressure shall not be less than the value outlined in section 9.2 of ANSI/ ASHRAE 15 for the refrigerant used in the system.
Valve type |
Connection type |
Media temperature range |
Max. working pressure |
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(PS/MWP) |
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NRV/NRVH 6s-19s |
Straight-way - solder |
-50 °C - 155 °C / -58 °F - 311 °F |
49 bar/ 710 psig |
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NRV/NRVH 6-19 |
Straight-way - flare |
-50 |
°C -140 °C / -58 °F - 285 °F |
46 bar/ 667 psig |
NRV/NRVH 22s-35s |
Angle-way - solder |
-50 |
°C -140 °C / -58 °F - 285 °F |
46 bar/ 667 psig |
NRV/NRVH 22s E-35s E |
Angle-way - solder |
-50 |
°C -155 °C / -58 °F - 311 °F |
49 bar/ 710 psig |
NRV 10s H (CO2) |
Straight-way - solder |
-50 |
°C -155 °C / -58 °F - 311 °F |
90 bar / 1305 psig |
Position angleway |
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Position straightway |
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NRV / NRVH |
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min. 90° |
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Danfoss |
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20-93.10 |
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NRV / NRVH |
NRV / NRVH |
NRV / NRVH |
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© Danfoss | DCS (nb) | 2020.06 |
AN306539100226en-000201 | 1 |
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