1. Equipped with an electrical composite actuator, the valve switch is controlled by an electrical signal and a position signal return device, suitable for explosion-proof and intrinsically safe control systems. It can achieve DCS remote and centralized control.

2、閥門的閥芯組件，由楔形塊左右漲塊與左右密封盤等構成，各機件之間采用大間隙活動連接結構，能自行定位，自行解脫、自行調整，不會因溫度變化變形而影響密封或啟閉。

2. The valve core component of the valve is composed of wedge-shaped blocks, left and right expansion blocks, and left and right sealing discs. The large gap movable connection structure is used between each component, which can be self positioned, self released, and self adjusted, without affecting the sealing or opening/closing due to temperature changes and deformation.

3、閥門全關密封狀態

3. Valve fully closed and sealed

打開氣源，氣動執行機構動作使活塞推動閥桿下移，由于楔形塊的作用，產生兩個水平方向力，將左右密封盤壓向密封座，迫使密封盤和密封座壓緊密合，達到密封效果。

Turn on the air source, and the pneumatic actuator moves the piston to push the valve stem downward. Due to the action of the wedge block, two horizontal forces are generated to press the left and right sealing discs towards the sealing seat, forcing the sealing disc and the sealing seat to press tightly together, achieving the sealing effect.

4.閥門全開狀態

4. Valve fully open state

打開氣源，氣動執行機構動作使活塞推動閥桿上移，使活動連接機構克服楔形塊與漲塊之間的摩擦力，又加上各機件之間大間隙配合，會使漲塊下垂，密封盤向內收縮而脫離閥座密封面，閥門開啟迅速、省力、無卡阻現象，達到閥門全開狀態。

Turn on the air source, and the pneumatic actuator moves the piston to push the valve stem upwards, causing the movable connecting mechanism to first overcome the friction between the wedge-shaped block and the expansion block. In addition, the large gap fit between various components will cause the expansion block to sag, the sealing disc to contract inward and detach from the valve seat sealing surface, and the valve door will open quickly, labor-saving, and without jamming, reaching the fully open state of the valve.

5.為了確保密封盤和密封座的接觸可靠，閥體內設有準確的導向板，把閥芯限制在閥體內部供啟閉用的運動范圍內，保證密封面相應對準，保持平穩快速開啟和關閉。

5. In order to ensure reliable contact between the sealing disc and the sealing seat, an accurate guide plate is installed inside the valve body, limiting the valve core to the range of motion used for opening and closing inside the valve body, ensuring that the sealing surface is aligned accordingly, and maintaining stable and fast opening and closing.

6.密封盤的密封面經堆焊或噴焊經久耐用，具有自清潔作用。當閥門開啟和關閉時，通過管道中介質的流動， 密封盤能自然旋轉滑動，從而可自行清洗，這種結構大大增加了閥門的使用壽命。

6. The sealing surface of the sealing disc is durable and self-cleaning after being welded or sprayed. When the valve is opened and closed, the sealing disc can naturally rotate and slide through the flow of medium in the pipeline, allowing for self-cleaning. This structure greatly increases the service life of the valve.

7.填料結構可根據特殊介質要求裝有填料隔環，通過密封脂注入塞注入密封脂，閥桿的可靠密封，既防止有毒介質泄漏，又增加了閥桿的潤滑。

7. The packing structure can be equipped with a packing spacer ring according to special media requirements. The sealing grease is injected into the plug through the sealing grease injection, ensuring reliable sealing of the valve stem. This not only prevents the leakage of toxic media, but also increases the lubrication of the valve stem.

8.閥門本體和氣動執行機構為全封閉結構，防護性能好。

8. The valve body and pneumatic actuator are fully enclosed structures with good protective performance.

9．氣動執行機構可分為單缸雙作用氣動執行機構、雙缸雙作用氣動執行機構、單作用氣開式彈簧復位和單作用氣關式彈簧復位氣動執行機構。

9. Pneumatic actuators can be divided into single cylinder double acting pneumatic actuators, double cylinder double acting pneumatic actuators, single action air open spring reset and single action air close spring reset pneumatic actuators.

10. 雙缸雙作用氣動執行機構，優點為加大閥門開啟時的啟動力，一般用在壓差較大的閥門，克服了啟動力大的問題。

10. Double cylinder double action pneumatic actuator, with the advantage of increasing the starting force when the valve is opened, is generally used in valves with large pressure differences, overcoming the problem of high starting force.

11. 單作用彈簧復位氣動平行式雙閘板閘閥，在斷電或停氣時，可利用氣缸的內儲能彈簧的作用使閥門緊急復位，使閥門關閉或開啟起到作用。

11. Single acting spring return pneumatic parallel double gate valve. In case of power failure or gas stop, the internal energy storage spring of the cylinder can be used to emergency reset the valve, making it safe to close or open.

12. 雙作用氣動閥門配帶事故空氣罐可實現停氣時閥門按要求運行到指定位置。

12. The double acting pneumatic valve equipped with an accident air tank can achieve the valve to operate to the designated position as required when the gas stops.

13. 氣動閥按用戶要求，可選用帶手動機構的氣動執行機構，當斷電、氣源發生故障或電信號壓力減小，電磁閥不能正常工作時，即可使用手動機構。

13. According to user requirements, pneumatic valves can be operated by pneumatic actuators with manual mechanisms. When power is cut off, the air source malfunctions, or the electrical signal pressure decreases, and the solenoid valve cannot function properly, manual mechanisms can be used.