This document provides requirements for metallic mounting kits for part-turn on-off valves and actuator attachments to enable safe and reliable operation. It includes all components transmitting torques from actuators to valves with a maximum flange torque up to 16 000 Nm (up to F30 flange type). It applies to part-turn valves and actuators both, having integral component attachment flanges and drive components as described in ISO 5211 (see Figure 1), when direct mounting of the actuator of the valve is not practical Stacking of mounting kits/intermediate supports is not in accordance with this document. It includes recommendations and methods for design and environmental corrosion protection. When reference is made to this document, all the requirements apply, unless otherwise agreed between the purchaser and the manufacturer/supplier, prior to order. In this document, the term "valve" covers valve or shaft extension top-flange, and the term actuator covers actuator or combination of actuator and gearbox.