Union screw for steel and copper tube Ø 4mm

Union screw for the assembly of solderless tube fittings on steel and copper tubes Ø 4mm- acc. to DIN 3871

Installation (steel and copper tubing)

1 Push socket union and double tapered sleeve onto tube end.
2 Insert tube end into tapped port up to the stop.
3 First tighten socket union inger-tight by hand. Then turn another
1 1/2 turns.





Please note:for mounting you need the corresponding union nut:404-001