It is enough to take the RVC fitting in hand to understand that it is the standard of quality among polymer fittings

Pipe end collar

Technical parameters:
A pipe end collar is used to connect pipes made of polypropylene with metal elements and measuring devices.
Temperature:
60⁰С working temperature
95⁰С maximum
Pressure:
PN25
Sizes
D1, mm D2, mm L1, mm L, mm Quantity per pack (pcs.)
16 18,5 3,8 28,5 650
20 23,8 5,5 35 750
25 29,5 6,5 35,8 450
32 38,3 5,6 42,8 100
40 49,7 7,2 43 70
50 61,8 11,2 74,7 45
63 71,5 11,2 78,7 30
75 92 15 94 20
90 127,5 23 115 12