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Pneumatic ball valve, is the introduction of foreign advanced technology on the basis of special design, carefully manufactured products. Intelligent control and positioning, with the electrical valve positioner matching, input 4-20mADC signal and 0.4~0.7MPa gas source can control the operation, to achieve pressure, flow, temperature, liquid level and other parameters of the adjustment. It is driven by compressed air, stem driven spool in the valve body rotation 90 degrees can be fully open - full closed action. The product is divided into metal seal and soft seal according to its sealing performance. The utility model has the advantages of compact structure, small volume, reliable operation, good tightness, easy maintenance, convenient installation, strong adaptability, etc.. The utility model is especially suitable for occasions where the medium is thick, granular and fibrous. Can be widely used in petroleum, chemical, teaching equipment, light industry, high pressure equipment, pharmaceutical, paper and other industrial automatic control system for remote centralized control or local control.

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