Danfoss GBC Series User manual

Shut-o ball valve for R744 (45 bar/650 psi)
Type GBC 6s to GBC 54s
009R9517
009R9517
Installation guide
© Danfoss | DCS (sw) | 2017.03 DKRCC.PI.FB0.C5.02 | 1
Temperature range: -40 – 150 °C / -40 – 300 °F
Max. working pressure (PS/MWP):
45 bar/650 psi
Remove access cap (if present)
OPEN position CLOSED position
Refrigerant: R744 (CO2)
Opening valve
Single-ow
1
2Valve size Max. Torque
Nm ft-lbs
6s - 22s 7 5.2
28s 17 12.6
35s 20 14.8
42s - 54s 34 25.2
Warning: Only authorized persons are allowed to operate this valve, as closing
can cause build-up of excessive pressure in the system.
For the application use with R744 as part of a secondary loop or cascade system should
refer to the datasheet for more attentions.
Applicable to all common non-ammable refrigerants, excluding R717. Alsofor 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.
Danfoss
9G219.10
Component
to be insulated
Danfoss
9G227.10
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9G228.10
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Danfoss
9G229.10
Danfoss
9G230.11

© Danfoss | DCS (sw) | 2017.03 DKRCC.PI.FB0.C5.02 | 2
Danfoss
9G226.10
Install Schrader valve
and cap (if present)
4
Brazing
Min. 5% Ag
3
Max. 150°C
(300°F)
Fully open
Fully closed
Install Schrader valve
with approx. torque
0.3 Nm / 0.2 ft-lbs
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Danfoss 9G209.10
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Danfoss
9G224.11