The DVB.6-50-20-M10-12-70 is a cylindrical heavy-duty double acting rotary damper from Elesa & Ganter. It is designed to create a slow and controlled rate of movement in rotation and is suitable for damping the movement of doors, flaps, and levelling applications. The part number is made up of a series of codes that refer to the specific design of this product. The 'DVB' indicates that this is a double acting rotary damper, '6' is the size of the damper (6mm), '50' is the torque of the damper at 6Ncm, '20' is the maximum angular stroke (20 degrees), 'M' is the damping speed (medium), '10' is the switching frequency (10s-1), '12' is the load capacity (12N), and '70' is the life expectancy (70 million operations).