Collar system (40-Series)

The serie is suitable for use with copper, brass, aluminium, steel and other kinds of tubes, which can be flared.

The 40-serie is manufactured in brass according to the standards DS 3003 leg. 5170, DIN 17660 leg. CuZn39Pb3, NS 16130, SS 5170, BS 2874 leg. Cz121.

Threads:
In the flare end the 40-serie has American Standard Thread ANSI B1.1, which corresponds with the following diameters:

Thread               Outside diameter of the tube
3/8-24 UNF  5 mm
7/16-20 UNF  6 mm
1/2-20 UNF  8 mm
5/18-18 UNF10 mm
3/4-16 UNF12 mm
7/8-14 UNF15 mm
7/8-14 UNF16 mm

Pressure and temperature:
The fittings can endure a working pressure up to 135 bar dependent of the dimension and the type of thread.

The 40-serie is suitable for temperatures from ÷ 50° C up to + 120° C. By temperatures below 0° C we recommend to use the stronger nut 41F.

GO TO PRODUCT