Gate Valves is another member of shut off/on valve family. What makes this unique is its disc movement is linear. The disc is either gate or wedge-shaped, which has an effective shut-off and on mechanism. Gate valve is primarily suited for isolation. While it is possible to use it as a throttling valve, this is not advisable as the disc may get damaged by media vibration. The surge of the media can damage the disc when gate valves are used half-closed in a throttling application. Advantages

• No media flow resistance since the gate does not obstruct the flow when fully opened.
• can be used in bi-directional flows.
• Simple design.
• Suitable for pipes with large diameters.

Gate valves are great shut off/on valves for any application. They are suitable for wastewater applications and neutral liquids. Gases that range between -200C and 700C with a maximum 16 bar pressure can use gate valves. Knife gate valves are used for slurries and powder media.