A lug butterfly valve is a kind of butterfly valve with a body that has “lugs” or hole protrusions around its circumference that provides passages for bolts.

The lug butterfly valve is somewhat similar to a 3-piece ball valve where one end of the wire can be removed without affecting the opposite side. Lug butterfly valve can be done by using threaded inserts, flanges and two sets of lugs that do not use nuts, as each flange has its own bolt. Lug butterfly valve is thus convenient to clean, inspect, repair or replace the lug butterfly valve because you do not need to shut down the entire system.

A lug butterfly valve is a type of quarter-turn valve that controls the flow of a product in a pipeline. From pharmaceuticals to manufacturing and food processing, the lug butterfly valve has a variety of applications and can be used to limit solid, liquid, or gas material flow.

The lug butterfly valve’s design is similar to a 3-piece ball valve in that one end of the line can be taken off without having an effect on the opposing side. Lug butterfly valve can be made by using threaded inserts, flanges, along with two sets of lugs that don’t utilize nuts since each flange features its own bolts.