Btr Limited

Christopher Jack Parker

Peter Alfred Gorman

A valve, for example a tapered plug valve, having two obturators each rotatable between open and closed positions. The angle between the rotational axes is at least about 90&deg; and may be 180&deg;. The handles used to rotate the obturators are preferably on the same side of the valve.

Double obturator valve

This invention relates to a butterfly valve incorporating means for accurately sensing the position of the valve disc within the valve body. One or two coils are embedded within the valve seal. A current is generated within one of the coils and a sensor connected either to the same coil or the other coil measures the change in induction characteristics of the coil as the disc is moved. The signal sensed by the sensor is indicative of the disc position.

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Shrewsbury, United Kingdom

Christopher Jack Parker