What does shuttle valve do?

A shuttle valve is a type of valve which allows fluid to flow through it from one of two sources. Generally a shuttle valve is used in pneumatic systems, although sometimes it will be found in hydraulic systems.

What is the difference between check valve and control valve?

A check valve is the simplest type of directional control valve used in hydraulic systems. Check valves stop the flow of fluid in one direction and allow free flow in the opposite direction. They are also known as non-return valves.

What is the difference between a check valve and non-return valve?

A non-return valve lets the fluid flow in one direction. When fluid in the line reverses direction, a check valve prevents backflow by allowing flow in one direction. The check valves are usually designed for a particular pressure.

What is the purpose of the shuttle valve in a hydraulic brake system?

Shuttle valves accept the flow and pressure from two different sources and direct the highest pressure to a single outlet port. Shuttle valves are typically used in Load Sensing circuits as well as Brake circuits.

Is check valve the same as one-way valve?

A check valve is basically a one-way valve, in which the flow can run freely one way, but if the flow turns the valve will close to protect the piping, other valves, pumps etc. If the flow turns and no check valve is installed, water hammer can occur.

What is a shuttle check valve?

A shuttle valve, also known as a double-check valve, allows pressure in a line to be obtained from alternative sources. It is primarily a pneumatic device and is rarely found in hydraulic circuits.

What is the purpose of the check valve?

Since they only allow media flow in one direction, they are commonly referred to as ‘one way valves’ or ‘non return valves. ‘ The main purpose of a check valve is to prevent backflow in the system. Figure 1 shows an example of a check valve. A check valve relies on a pressure differential to work.