List the two ways butterfly valves are installed into a piping system:

List the two ways butterfly valves are installed into a piping system:



1) Welded
2) Unions
3) Flanged
4) Wafer
5) Glues


a. 1, 2
b. 2, 3
c. 3, 4
d. 4, 5
e. 1, 5



Answer: C


Learn More :