Pneumatic Diaphragm Stainless Steel Regulating Valve DN65 PN16

This is a pneumatic diaphragm-type stainless steel control valve, belonging to the category of industrial valve equipment.

Made of stainless steel, this control valve boasts excellent corrosion resistance and is suitable for industrial applications such as petroleum, chemical, and pharmaceutical industries, where high media purity and equipment corrosion resistance are crucial. It is used for precise regulation of fluid parameters such as flow rate and pressure. The valve is equipped with a green pneumatic diaphragm actuator at the top, and when paired with accessories such as a positioner and pressure gauge, it can achieve automated, high-precision flow control via a pneumatic power source.

The working principle of a pneumatic diaphragm-type stainless steel control valve is to regulate the flow rate of the medium in the pipeline by driving the valve disc displacement through the force balance of the pneumatic diaphragm actuator. The specific process is as follows:

When a control signal (pneumatic signal or electro-pneumatic converted pneumatic signal) is input to the air chamber of the pneumatic diaphragm actuator, a pressure difference is generated on both sides of the diaphragm, pushing the push rod to drive the valve stem and valve disc to move linearly along the valve seat axis.

Flow rate regulation: The flow area between the valve disc and the valve seat changes with the displacement of the valve disc, thereby achieving precise regulation of the medium flow rate.

Force balance control: The unbalanced force generated by the valve disc under the action of medium pressure is balanced with the output force of the pneumatic diaphragm actuator, ensuring that the valve disc remains stable at the specified opening degree, achieving stable flow control.

This type of control valve, with its corrosion resistance of stainless steel and the precise control characteristics of the pneumatic diaphragm actuator, is suitable for pipeline systems in the petroleum, chemical, and pharmaceutical industries where precise flow and pressure requirements are necessary.

SND TECH has specialized in the production and sales of manhole covers, valves, pipes, and pipe fittings for nearly 20 years. Located in Wu'an Industrial Park, Handan City, Hebei Province, our facility benefits from the region's largest mechanical casting spare parts processing industrial park with complete supporting industry chain and convenient transportation.

Our ISO9001-accredited quality control systems guarantee consistent and dependable quality for every component. Production processes include comprehensive inspections using spectrometry, ultrasonic, magnetic, permeability, elongation, and tensile/yield strength testing.