SiEN34-705 Installation
General Information 31
Important points
1. Burrs should be carefully removed.
2. 2 spanners should be used to grip the flare nuts.
3. The flare nut must be inserted before starting the flaring operation.
4. The appropriate amount of torque should be used to tighten the flare nut.
5. Check that there is no superficial damage to the surface of the flare.
Standard torques for tightening flare nut
±10%
Size
Torque
(kgf-cm) (N-cm)
1/4(6.4φ) 144~176 1420~1720
3/8(9.5φ) 333~407 3270~3990
1/2(12.7φ) 504~616 4950~6030
5/8(15.9φ) 630~770 6180~7540
3/4(19.1φ) 990~1210 9270~11860
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