Operating positions for two main-port valves could be either shut (closed) to ensure that no flow in any way undergoes, fully open for max flow, or sometimes partially open to any degree involving. S

The double block and bleed valve is also called DBB valve, generally speaking, it is make up by two ball valve and one neddle valve or two ball valve and a globe valve.

A ball valve is a valve with a spherical disc, the part of the valve which controls the flow through it. The sphere has a hole, or port, through the middle so that when the port is in line with both e

Instead of the plain old drain plug, there are other fancy ways to do the oil change. If your car is well maintained, meaning if you change oil frequent enough, there

The Model 7000 and Model 7200 are UL Listed /FM Approved pressure relief valves specifically designed for fire sprinkler systems. Both models relieve excess system

Air valves allow metered flow of fluid in one or both directions. Many of them allow for free flow in one direction and reduced or metered flow in the reverse direction. They are used in pneumatic cir

Zone control valves are drip irrigation valves that turn on and off water to the drip tubes (or hoses). Often these valves are automatically turned on and off by an irrigation controller/timer.

Ball valve and plug valves are belonging to the same type of valve, the only difference is that ball