Danfoss NRVT Installation guide

20-8015

Danf
20-8041

Installation Guide

Check valve
Type NRVT

Refrigerants: R744 (CO)
Temperature range (TS): -40 °C – 150 °C / -40 °F – 302 °F

020R9520

Max. working pressure (PS/MWP): 140 bar / 2031 psig

Warning:

This valve is UL certified for use in CO2(R744) systems only. 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.
Only authorized persons are allowed to install this valve, as closing can cause build-up of excessive
pressure in the system.

020R9520

Possible orientations(hard spring)

Danfoss

It is possible vertical, horizontal or inclined mounting

Risk orientations(soft spring)

Brazing

Min. 5% Ag

Dry N2

Max. 150 °C / 302 °F

Danfoss

20-8016

oss

Internal leak risk orientations for soft spring

© Danfoss | Climate Solutions | 2022.02

45°

45°

AN400564784627en-000201 | 1