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 (CO
2
)
Opening valve
Single-ow
1
2
Valve 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 GBC Series Specifications

General

Brand	Danfoss
Model	GBC Series
Category	Control Unit
Language	English

Summary

Valve Specifications and Safety Information

Technical Data

Details on refrigerant compatibility, temperature limits, and maximum working pressure for the valve.

Application and Safety Warnings

Notes on refrigerant applicability, system pressure requirements, and operational safety advice.

Installation Procedures

Remove Access Cap

Instructions for removing the access cap if it is present on the valve.

Valve Opening and Closing Operation

Guidance on how to open and close the valve, including maximum torque specifications.

Brazing

Procedure for brazing the valve connections, specifying materials and temperature limits.

Install Schrader Valve and Cap

Steps for installing the Schrader valve and its cap, with torque recommendations.