The GDD series of electric high vacuum baffle valve is through electrical components to control valve plate moving and to turn on or cut off the vacuum airflow. The applicable media is air and non-corrosive gases.
It has two types, one is angle-through (GD-J) and the another is with flange of pre-pumping type (GD-S). And it has two forms in seal, combinatorial rubber seal rings seal and bellows seal. That it is the bellows seal after the product type No. With "b".

Please select the seal style in the order.
The conventional factory-output is the form of conventional rubber ring seal style.
The signal feedback is the form of no-supply contact style.