The Type 6519 NAMUR I.S. valve is used for the pneumatic control of double or single-acting actuators with a NAMUR adapter plate flange. The circuit function can be changed using a change-over plate. In the 3/2–way function, feedback of the exhaust air takes place in the spring area of the armature drive. The diaphragm–controlled valve seats work with very
low friction, ensuring reliable switching of the valve even after long shutdown periods and at ambient temperatures below +32 °F (0 °C). The valves work without a continuous air consumption, and the use of high quality materials makes it possible to used these valves in the open air and under chemical atmospheres.
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