The basic concepts of blind valves

Blind valves are used for completely restricting the flow through a pipe, as they restrict material flow completely then it is easy to carried out construction and maintenance and other activity safely. These valves also provide visual indication and show the position of valve to the workers. They are also called as eight (8) blind or blind flanges because it can be as simple like a rotating 8 shape, where one loop is a hollow disc by which flow through valve is done and the other loop is solid completely.

These valves are easy in use and installation, and provide great safety to both large and small projects but are invaluable for high flow volume applications. With some actuation mean the blind valve is rotated and the solid disk restrict movement through pipe and the hollow disk protrudes from valve which indicates that the valve is in close position. Blind valve achieve 100 percent positive isolation and there is zero leakage because blind is a solid plate.

Blind valves are widely used in fluid piping systems in petrochemical, chemical, pharmaceutical, food and beverage, energy and other industries. They can be used in a variety of applications such as controlling fluid flow, cutting or isolating piping, cleaning and servicing fluid systems. Whether it is a high temperature and high pressure system or general industrial piping, blind valves can provide reliable fluid control.