The requirements for establishing the minimum size of the operating element supplied with an industrial valve having regard for the force applied by one person to operate the valve under specified working conditions are defined in this standard. Applicable to manual operating elements of sizes from 100 mm to 1 000 mm: mounted on valve reduction gearboxes; directly mounted on valves; used for manual operation of power actuated valves. Is not applicable to T-keys, chainwheels or impactor handwheels.

NS EN 12570 Ed. 1 (2000) - Identical

I.S. EN 12570:2000 - Identical

UNI EN 12570:2001 - Identical

NF EN 12570:2001 - Identical

ONORM EN 12570:2000 - Identical

DIN EN 12570 (2000-10) - Identical

BS EN 12570:2000 - Identical

SN EN 12570:2000 - Identical

NEN EN 12570:2000 - Identical

SS EN 12570 Ed. 1 (2000) - Identical

UNE EN 12570:2001 - Identical