●According to OSHA standards (U.S. Safety and Health Administration) ●Manual switching valve as a safety measure to prevent accidents caused by residual pressure in air control systems ●Air supply and exhaust status are clear at a glance ●In the exhaust position, the valve can be locked with a padlock to prevent accidental opening during cleaning or equipment maintenance. ●The hand wheel is pressed down and then rotated. It has a two-action structure, so it can prevent malfunctions. ●Easy to operate ●You can confirm the air flow direction at a glance based on the direction of the handle Category: Manual valve, Brand: SMC, Series: VHS