The Two General Types of Butterfly Valves

What are the two general types of butterfly valves?

1) Wafer and lug
2) Flanged and wafer
3) Lug and flanged
4) Wafer and flanged

Answer:

The two main types of butterfly valves are wafer and lug.

The two general types of butterfly valves are 1) Wafer and lug 2) Flanged and wafer 3) Lug and flanged 4) Wafer and flanged. The correct answer is wafer and lug type butterfly valves. Wafer type butterfly valves are designed to maintain a seal against bidirectional pressure differential to prevent any backflow in systems designed for unidirectional flow. They are used for applications that require a tight seal, and they fit between two pipe flanges.

Lug type butterfly valves, on the other hand, have threaded inserts at both sides of the valve body. This allows them to be installed into a system using two sets of bolts and no nuts, as each side of the valve has its own bolts. It is also possible to disconnect one side of the piping system without disturbing the other side with lug type valves.