PPR ball valve diameter is 3 cm, what is the specifications?
Is it an outer diameter or an internal? Write on the handle of the ball valve. It's DN20, that's the 20 ball valve. It's DN25, that's the 25 ball valve
Closer to the national standard, the size should be 32 (phi 32)
The PPR32 ball valve with the DN25 is a specification. (DN25 is the nominal diameter of the pipe and PPR32 is the outer diameter of the pipe)The PPR25 ball valve with the DN20 is a specification.
