To provide a method for reducing the operation torque of piping equipment, operation torque-reduced piping equipment, and an filming agent for reducing the operation torque that not only enhance sealing properties of the operation part side and the non-operation part side of the piping equipment but also improve the sliding performance of the operation part side and are excellent in seal performance and torque characteristics.

The invention relates to the method for reducing the operation torque of the piping equipment connecting a formed film for reducing the operation torque with either or two of surfaces of the operation part side and the operated part side positioned at the operation section of the piping equipment. The piping equipment includes a valve or a water plug, the operation part side includes a valve bar or a spindle, the operated part side includes a packing, and the formed film includes a component including a fatty acid or aromatic carboxylic acid.