Danfoss GBC Ball Valve - for CO2 Installation guide
- Type
- Installation guide
© Danfoss A/S (RC- SM / bpv), 05-2011 DKRCC.PI.FB0.%1.02 / 520H 1
GBC Ball valve brazing and welding instructions
for CO
2
applications
009R9506
009R9506
Temperature range:
–40°C → 150°C
(–40°F → 300°F)
GBC 6-28 s PS/MWP = 90 bar (1305 psig)
GBC 35,42 s PS/MWP = 75 bar (1085 psig)
CLOSED position
Change stem direction to open position
Open
Closed
1. Brazing or welding should be operated by
2. The most important is to prevent overheating
valve body when brazing or welding, otherwise
the heat may damage the O-ring and cause
leak.
min. or a few seconds.
3.
4. We recommend Apply N
2
in the tube when
brazing or welding.
5. De-pressurize the system before operation.
(May result in bodily injury).
6.
soaked cloth to the joint to cool it down.
7. Final leakage check.
Fully soaked
OPEN position
Applicable to R744 refrigeration system. 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.
Instruction
Brazing illustration
Welding illustration
Brazing:
GBC 6-22 s with copper tube
Welding:
GBC 28-42 s with steel tube
2 DKRCC.PI.FB0.%1.02 / 520H © Danfoss A/S (RC- SM / bpv), 05-2011
Ball valve must always be in either
FULLY OPEN or
FULLY CLOSED position.
Open / Close valves
Change stem direction
Remove cap
Mount cap
Tighten cap
Tighten the cap with a torque which should
be increased time to time to ensure a good seal.
Valve size 6 ~ 16s 18 ~ 22s 25 ~ 28s 32 ~ 35s 42s
Max. Torque
7 Nm
7 Nm 17 Nm 20 Nm 34 Nm
Open/Close stem within the Max. torque
Valve size 6 ~ 22s 25 ~ 35s 42s
Torque 15 Nm 20 Nm 32 Nm
Tighten the cap with approx. torque
Open
Close
-
1
-
2
Danfoss GBC Ball Valve - for CO2 Installation guide
- Type
- Installation guide
Ask a question and I''ll find the answer in the document
Finding information in a document is now easier with AI
Related papers
-
Danfoss GBC Ball Valve - for CO2 90 bar Installation guide
-
-
-
-
-
-
-
-
-