Rotary Couplings

Rotary Couplings - ROEMHELD F 9.280

• Single, twin, four and six passages
• Without/with leakage oil port
• Max. operating pressure 500 bar

Rotary couplings supply the pressure oil to rotating and swivelling installations. They are mounted in the centre of rotation of the installation.

Operating conditions

When selecting, operating pressure and speed have to be taken into account. Only use hydraulic oil of the viscosity classes 22, 32 and 46.

The rotary coupling has to be connected to the power unit on all levels to ensure sufficient lubrications of the seals. The rotary couplings must only be used in a temperature range between + 10 °C and + 60 °C. This also applies to possible special versions with FKM seals. Operating conditions, tolerances and other data see data sheet A 0.100.

Single passage angle joints and axial joints

• Admissible continuous number of rotations 10 min-1
• Starting torque approx. 1.2 Nm
• Ports: G1/4 and pipe Ø 8 mm
• Tightening torque: 55 Nm
• Range of operating pressure: 10 - 500 bar

Rotary coupling, twin passages

• Nominal diameter: ND5
• Admissible continuous number of rotations: up to 85 min-1
• Leakage rate: 40 cm3/100h
• Ports: G 1/4
• Range of operating pressure: 10 - 500 bar

Rotary coupling, four passages

• Nominal diameter: ND5
• Admissible continuous number of rotations: up to 50 min-1
• Leakage rate: 60 cm3/100h
• Ports: G 1/4
• Range of operating pressure: 10 - 500 bar

Rotary coupling, six passages

• Nominal diameter: ND5
• Admissible continuous number of rotations: up to 35 min-1
• Ports: G 1/4
• Range of operating pressure: 10 - 500 bar