Rotork has been awarded phased contracts to install new electric actuators on an approximate total of 300 valves during a modernisation and upgrade programme at the National Grid Transco (NGT) gas terminal at Bacton in Norfolk, UK. Rotork is replacing earlier versions of its own actuators which, in many cases, have been in operation since the Bacton plant first began processing North Sea natural gas in the early 1970s. The latest ATEX certified Rotork IQ2 intelligent electric actuators are being installed, the majority being IQ70 models operating buried service 36-inch Cameron pipeline ball valves. Most of the valves control the movement of gas received from three North Sea gas producers situated on an adjacent site. The gas undergoes filtering, blending and quality assurance processes, including checks on calorific value, volume, pressure and temperature, before it is pumped into the NGT National Transmission System.
