1) Mechanically actuated valve VMEF Mechanically actuated valve. Available as just a stem actuated valve or with roller lever or tilting roller lever. Some versions are also suitable for vacuum operation. Durable thanks to tried-and-tested piston slide and disc seat valve technology Robust metal housing Outstanding pneumatic performance Attractive price Ergonomic and safe operation Minimal actuating forces Modern design Reverse operation possible 2) Hand lever valve VHER Lever in metal or polymer design Front panel mounting, through holes or mounting holes 3) Manually actuated valve, metric VHEF Directly controlled, manually actuated valve. Available as hand lever, selector switch or finger lever. Durable thanks to tried-and-tested piston slide and disc seat valve technology Robust metal housing Attractive price Ergonomic and safe operation Minimal actuating forces Modern design Reverse operation possible