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.

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.

SCIP No. 9e97d1e4-3684-4ecc-af6c-bbf48be89754 applies to all products in this serie.