Danfoss GBCH Series User manual

Installation guide
Shut-o ball valve
Type GBCH 6s to GBCH 42s
009R8516 009R8516
© Danfoss | DCS (jmn) | 2018.03 DKRCC.PI.FB0.I1.02 | 520H12717 | 1
Refrigerant:
R744 (CO2)Max. working pressure:
GBCH 6s - 28s: PS/MWP = 90 bar / 1305 psig
GBCH 35s - 42s: PS/MWP = 75 bar / 1085 psig
Temperature range:
-40 °C – 100 °C / -40 °F – 212 °F
Warning: Applicable to all common non-ammable refrigerants, 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. 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.
Remove cap and access cap (if present)
90 bar
1305 psig
Danfoss
9G8043
Opening valve
90 bar
Danfoss 9G8045
Valve size Max. Torque
Nm ft-lbs
6s - 22s 7 5.2
28s 26 19.2
35s 27 19.9
42s 48 35.4
OPEN Position CLOSED Position
Danfoss
90 bar
psig
Danfoss
9G8046
Danfoss
90 bar
psig
Danfoss 9G8047

© Danfoss | DCS (jmn) | 2018.03 DKRCC.PI.FB0.I1.02 | 520H12717 | 2
Brazing (Copper and Copper alloy)
Danfoss
9G156.14
Welding (stainless steel)
Danfoss 9G208
Install Schrader valve (if present) and cap
90 bar
1305 psig
Danfoss
9G8071
Tighten cap Tighten the cap with approx. torque
Valve size Max. Torque
Nm ft-lbs
6s - 22s 15 11.0
28s - 35s 20 14.8
42s 32 23.6
90 bar
Danfoss
9G8048
Danfoss
9G207
Danfoss
9G207
Danfoss
9G207
Min. 5% Ag
Install Schrader valve
with approx. torque
0.3 Nm / 0.2 ft-lbs
Max. 100 °C / 212 °F
Max. 100 °C / 212 °F
Fully openFully closed
Wet cloth must cover the label !
Wet cloth must cover the label !