Abstract: An apparatus for controlling the a valve by a coded electromagnetic signal comprises a saddle assembly for installation on a valve. The saddle assembly includes an aperture allowing for placement over a valve stem and a valve saddle having two arm elements which are secured to a saddle plate and extend around the valve. A drive drum is secured to the saddle assembly and includes a drive drum tube. Drive plates are secured to the drive drum tube and are separated by drive drum alignment spacers. Drive plate drive channels guide a non-stationary post attached to plurality of drive springs secured to an upper and a lower stationary guide plate. A plurality of stationary guide plates includes an aperture through which a drive drum tube passes allowing the drive drum to rotate freely. A plurality of guide plates are linked to a hammer shaft and a hammer cam which is released by a trigger activated by the coded electromagnetic signal which allows the rotation of the drive drum and turning of the valve stem.