Dwyer Instruments, 15S651, LIN-E-AIRE Air-to-Lower Valve Actuator
The Lin-E-Aire Valve Actuators are used for automatic operation of the control valve. The opening, closing or throttling of the valve plug in the valve body is accomplished by varying the air pressure to the diaphragm in the actuator. This pressure is transmitted from a control device, which may be controlling pressure, liquid level, temperature or flow.
Air-to-Raise - Termination Nos. 230, 231, 233, 250 thru 254, Air pressure moves the push rod upward compressing the spring. In the event of air failure, the push rod moves to its extreme downward position.
