Pneumatic flange butterfly valve: pneumatic flange butterfly valve is composed of rubber sealed butterfly valve, carbon steel or stainless steel valve plate and valve stem. It is applicable to the water supply and drainage of food, chemical industry, petroleum, electric power, textile, papermaking, etc. the temperature is ≤ 80 ~ 120 ℃, regulating the gas pipe flow and intercepting medium.

氣動調節蝶閥：是一種（閥板）垂直于通道的固定軸旋轉閥，由活塞雙作用或單作用（彈簧復位）氣動執行器和蝶閥組成，屬于旋轉高性能調節或切斷閥、電、氣閥定位器或電磁閥、空氣過濾減壓器、限位開關（閥回信器），可實現流體介質比例調節和二切斷控制，實現流體介質流量、壓力、溫度、液位等參數的自動控制。

Pneumatic regulating butterfly valve: it is a fixed shaft rotary valve (valve plate) perpendicular to the channel, which is composed of piston double acting or single acting (spring return) pneumatic actuator and butterfly valve. It belongs to rotary high-performance regulating or shut-off valve, electric and pneumatic valve positioner or solenoid valve, air filter pressure reducer and limit switch (valve feedback). It can realize the proportional regulation and secondary cut-off control of fluid medium, and realize the flow, pressure, temperature Automatic control of liquid level and other parameters.

氣動夾式蝶閥：結構新穎，閥體結構為短距離夾式結構，滿足管道空間狹窄，外部零泄漏，內部泄漏符合國家標準。

Pneumatic clip butterfly valve: the structure is novel. The valve body structure is a short-distance clip structure, which meets the requirements of narrow pipe space, zero external leakage and internal leakage in line with national standards.

氣動襯膠蝶閥：根據介質的化學性質，根據介質的化學性質，連接法蘭、乙丙橡膠、耐熱乙丙橡膠、氯丁橡膠和氟橡膠。

Pneumatic rubber lined butterfly valve: according to the chemical properties of the medium and the chemical properties of the medium, connect the flange, ethylene propylene rubber, heat-resistant ethylene propylene rubber, neoprene and fluororubber.

氣動襯里氟蝶閥：防腐襯里氟蝶閥分為兩個閥體組合，閥座和閥體襯里集成，閥門工作，只有塑料閥座和襯里塑料蝶板和介質接觸，產品可承受熔融堿金屬和元素氟以外的任何介質腐蝕，包括D71F46閥桿和蝶板（鍛造），表面均勻覆蓋一層FEP。閥體通道內表面光滑，流體阻力小，CV值高，循環能力強，扭矩適中，采用四級密封結構，采用耐溫耐老化的SI橡膠彈性襯墊閥座，完全實現介質零泄漏。

Pneumatic lining fluorine butterfly valve: the anti-corrosion lining fluorine butterfly valve is divided into two valve body combinations. The valve seat and valve body lining are integrated. The valve works. Only the plastic valve seat and lining plastic butterfly plate are in contact with the medium. The product can withstand the corrosion of any medium other than molten alkali metal and elemental fluorine, including d71f46 valve stem and butterfly plate (forging), and the surface is evenly covered with a layer of FEP. The inner surface of the valve body channel is smooth, the fluid resistance is small, the CV value is high, the circulation capacity is strong, and the torque is moderate. The four-stage sealing structure is adopted, and the temperature and aging resistant Si rubber elastic gasket valve seat is adopted to completely realize zero medium leakage.

氣動通風蝶閥：閥板閥座間有一條細縫，適用于空氣流通較差的環境。

Pneumatic ventilation butterfly valve: there is a fine seam between the valve plate and valve seat, which is suitable for the environment with poor air circulation.

氣動伸縮蝶閥：設計新穎，結構合理，結構獨特，重量輕，操作方便，啟閉快；伸縮蝶閥不僅可以調節和截流，補償管道溫差引起的熱膨脹和冷收縮功能，還可以方便安裝和更換和維護閥門。密封件可調更換，密封性能可靠。

Pneumatic telescopic butterfly valve: novel design, reasonable structure, unique structure, light weight, convenient operation and fast opening and closing; The telescopic butterfly valve can not only adjust and shut off the flow and compensate the thermal expansion and cold contraction caused by the pipeline temperature difference, but also facilitate the installation, replacement and maintenance of the valve. The seal can be adjusted and replaced, and the sealing performance is reliable.

氣動硬密封蝶閥：結構簡單，體積小，重量輕，成本低。氣動盤閥的特點特別明顯。安裝在高空黑暗道路上。經過兩個五通電磁閥控制，操作方便，流量介質也可調節。流體阻力小，中大口徑氣動盤閥全開時循環面積大，啟閉快捷省力，盤扳機旋轉90角度即可完成啟閉。由于轉軸兩側盤板手介質的作用力接近相等，轉矩方向相反，啟閉扭矩小，低壓下密封良好。盤閥密封材料包括丁青橡膠、氟橡膠、食用橡膠和襯四氟化物，因此密封性能良好。硬密封盤閥是軟硬層疊金屬片，具有金屬硬密封和彈性密封的優點，在低溫下密封性能優異。

Pneumatic hard seal butterfly valve: simple structure, small volume, light weight and low cost. The characteristics of pneumatic disc valve are particularly obvious. Installed on high-altitude dark roads. Controlled by two five way solenoid valves, the operation is convenient, and the flow medium can also be adjusted. Small fluid resistance, large circulation area when the medium and large diameter pneumatic disc valve is fully opened, fast and labor-saving opening and closing, and the opening and closing can be completed by turning the trigger 90 degrees. As the force of the medium on both sides of the rotating shaft is nearly equal, the torque direction is opposite, the opening and closing torque is small, and the sealing is good under low pressure. Disc valve sealing materials include butadiene rubber, fluororubber, edible rubber and lining tetrafluoride, so the sealing performance is good. Hard seal disc valve is a soft and hard laminated metal sheet, which has the advantages of metal hard seal and elastic seal. It has excellent sealing performance at low temperature.

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