The 19-6W9 is a type of switch manufactured by Hy-Lok Corporation, a Korean-based company. It is a mechanical, rotary valve with an inner jacket. The rotary valve is designed to control the flow of air, gas and liquids in industrial and process applications. It is commonly used in areas such as water processing, petrochemical and food processing plants. The 19-6W9 features a two-position switch, a 360-degree rotation, a built-in anti-static ring and an anti-vibration seat. It is made of high-grade stainless steel and is resistant to wear and corrosion. It also has quick installation and removal for easy replacement.