VALVE OPEN With the red handle pulled outward, sup- ply air fl ows freel y from inl et to outl et, and fl ow to the ex haust is blocked. The sleeve can not be padl ocked in the open plosition so that it is always ready for immediate closing.

VALVE CLOSED With a short inward push of the red han dle, sup ply air is blocked from the outl et, and down stream air is ex haust ed to at mo -sphere via the ex haust port at the bot tom of the valve. The valve can be padl ocked in the closed position.