Overview of Miller Pneumatic Diaphragm Control Valve in the United States:

The Miller pneumatic diaphragm regulating valve in the United States consists of a multi spring pneumatic diaphragm actuator and a diaphragm valve. The diaphragm valve body flows smoothly, the throttling element is an elastic diaphragm valve, and there is no packing box on the valve cover. Therefore, the flow capacity of the valve is larger than that of a general regulating valve and there is no leakage. It can be used as a shut-off valve within the allowable pressure difference range. The opening and closing of the air are achieved by positive and negative actuators.

This valve is suitable for regulating high viscosity fluids, suspended particles, fiber media, toxic media, and corrosive media.

11、 Installation and usage precautions:
2Pneumatic diaphragm valves should be installed vertically on pipelines, and those with large volume and weight, as well as those used in vibration situations, should be supported and clamped.
3Pneumatic diaphragm valves should generally be equipped with a bypass pipeline so that they can switch to bypass operation in case of diaphragm failure or maintenance, allowing the production process to proceed normally. In generally unimportant situations, the bypass pipeline can be omitted after installing a handwheel mechanism for manual operation, and the valve opening can be limited. When the handwheel mechanism stops using, it should be restored to its original neutral position to facilitate the normal operation of the self-control system.
4When cleaning pipelines, the adjustment should be at the maximum opening to remove dirt from the pipeline.
5If the valve body is lined with an anti-corrosion layer, a corrosion-resistant soft pad should be used when installed on the pipeline, and care should be taken not to damage the sealing surface of the valve body flange.

Regular inspections should be conducted on the diaphragm and lining to prevent damage to other parts and accidents caused by corrosion and rupture.