Product Information

Product Name: Shut-off ball valve Type GBCT

Model Number: 009R8519

Manufacturer: Danfoss

Installation Guide

This component is a shut-off ball valve designed for use in
systems where the critical pressure of the refrigerant may be
exceeded. It is recommended to install this valve along with a
pressure relief valve that is set to discharge at no higher than
the rated pressure of the shut-off ball valve. The relief valve
must comply with ASME Section VIII requirements, be marked UV, and
sized based on the refrigeration system capacity.

Danfoss recommends installing the shut-off ball valve so that
the high-pressure (HP) side is oriented towards the highest
pressure side of the system when the valve is in the closed
position. The ball valve will only internally seal in the closed
position when the flow direction is from HP to low pressure (LP)
side.

Service Component

High-Pressure Side: HP

Low-Pressure Side: LP

Valve Size and Torque Specifications

Valve Size	Max. Operating Torque (Nm)	Max. Operating Torque (ft-lbs)
GBCT 6 – 17	5	4
GBCT 18 – 22	7	5
GBCT 27 – 28	9	7
GBCT 34 – 35	11	8
GBCT 42	15	11
GBCT 48 – 60	34	25

Installation Instructions

Remove the cap and access cap if present.
If applicable, install the valve core with an approximate
torque of 0.3 Nm / 0.2 ft-lbs.
Tighten the cap with the recommended torque based on the valve
size:

Valve Size	Recommended Torque (Nm)	Recommended Torque (ft-lbs)
GBCT 6 – 17	4-5	3-4
GBCT 18 – 22	7-8	5-6
GBCT 27 – 42	18-20	13-15
GBCT 48 – 60	54-61	40-45

Ensure the valve is fully closed or fully open based on the
desired position.

Brazing (Copper and Copper alloy)

When brazing, use the following information:

Manufacturer: Danfoss

Model Number: 9G8047

Position: Open

Pressure: 90 bar psig

Welding (Stainless Steel)

When welding, use the following information:

Manufacturer: Danfoss

Model Number: 9G8046

Position: Closed

Pressure: 90 bar psig

After installation, securely tighten the cap and ensure proper
functioning of the shut-off ball valve.

UK Customers Only:

Danfoss Ltd., 22 Wycombe End, HP9 1NB, GB

Contact Information: 04080, 80, / 168, Danfoss 9G8045

Note: This is an extract from the user manual. Please refer
to the complete manual for detailed instructions and safety
guidelines.

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009R8519

Installation guide
Shut-off ball valve Type GBCT

Refrigerant: R744 (CO2) Temperature range (TS): -40 °C 149 °C / -40 °F 300 °F Max. working pressure (PS/MWP):140 bar / 2031 psig
CAUTION – RISK OF HIGH PRESSURE This component shall be installed along with a pressure relief valve set to discharge at no higher than the rated pressure of this component. This component is intended for systems in which the critical pressure of the refrigerant will be exceeded. The relief valve shall comply with the requirements of ASME Section VIII, be marked “UV” and sized based on the refrigeration system capacity.
Warning: Applicable to A1, incl. R744, refrigerants as accepted by Danfoss 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.

Danfoss recommends that valves are installed so that the HP

side is oriented towards the highest pressure side of the sys-

tem when the valve is in the closed position. The ball valve

will only internally seal in closed position when flow direction is from HP to LP.

Service Component

HIGH PRESSURE SIDE ” HP”

LOW PRESSURE SIDE “LP ”

Service Component

Remove cap and access cap (if present)

Info for UK customers only: Danfoss Ltd., 22 Wycombe End, HP9 1NB, GB

: ” ” 04080, 80, / 168, Danfoss 9G8045

Opening valve
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