一、蝶阀球阀用进口气动执行器概述

V-AT新型齿轮齿条式气动执行器，通过CAD三维模型创新优化设计，外形美观紧凑、现代化的造型；并采用实用新型材料、新工艺，使产品的质量、性能更加可靠；多规格选型更经济实惠；产品全面符合最新国际标准技术规范，满足现在和未来的需求。

V-AT gear rack and pinion pneumatic actuator, innovatively optimized through CAD 3D model design, with a beautiful, compact, and modern appearance; And adopt practical new materials and new processes to make the quality and performance of the product more reliable; Multi specification selection is more cost-effective; The product fully complies with the latest international standards and technical specifications, meeting current and future needs.

二、蝶阀球阀用进口气动执行器性能参数

三、蝶阀球阀用进口气动执行器产品特征

① 齿轮齿条双活塞对称结构设计，动作快速平稳，精度高，输出功率大，通过简单的改变活塞装配位置可得到反方向旋转。

②挤压的优质铝合金缸体，经精密加工的内孔和外部表面进行硬质阳极氧化处理（特殊情况下阳极氧化+特氟隆涂层），使用寿命更长，摩擦系数低。

③一体式设计，所有的双作用和单作用执行器型号，都具有相同的缸体和端盖，很方便通过加装弹簧或拆除弹簧来改变作用方式。

④组合式预符荷安全弹簧组，不论在装配过程或使用现场中，都能方便而安全的安装或增减弹簧数量。

⑤外部侧面两个单独调节螺钉对于已安装在阀门上的执行器更是精确方便，调节阀开和阀关位置，如需全行程调节时则另外在两个端盖处配置较长调节螺钉。

⑥多功能位置指示器，现场可视化指示，符合VID/VIE3845、NAMUR标准槽，能安装并输出所有附件，如限位开关盒、电气定位器、位置传感器（倍加福、图尔克）。

⑦气源接口符合NRMAR标准，可直接安装NUMAR标准电磁阀。

⑧齿条背面的复合材料轴瓦和活塞导向环以及输出轴的轴承等为防止金属对金属的摩擦，并且增加润滑,使其低摩擦、长寿命。

⑨所有的紧固件均采用不锈钢材料，长期抗腐蚀。

⑩连接部分符合全新国际标准规范ISO5211，DIN3337（F03-F25）使产安装具有互换性、通用性。

① The gear rack dual piston symmetrical structure design ensures fast and stable movement, high accuracy, and high output power. By simply changing the piston assembly position, reverse rotation can be achieved.

② The high-quality extruded aluminum alloy cylinder body, with precision machined inner holes and outer surfaces treated with hard anodizing (anodizing+Teflon coating in special cases), has a longer service life and low friction coefficient.

③ Integrated design, all double acting and single acting actuator models have the same cylinder body and end cover, making it easy to change the action mode by adding or removing springs.

④ The combination pre load safety spring group can be conveniently and safely installed or increased or decreased in the number of springs, whether during the assembly process or on-site use.

⑤ The two separate adjustment screws on the outer side are more precise and convenient for actuators already installed on the valve. They adjust the valve opening and closing positions. If full stroke adjustment is required, longer adjustment screws should be installed at the two end caps.

⑥ Multi functional position indicator, on-site visual indication, compliant with VID/VIE3845 and NAMUR standard slots, capable of installing and outputting all accessories, such as limit switch box, electrical locator, position sensor (Beijiafu, Turck).

⑦ The air source interface complies with the NRMAR standard and can be directly installed with the NUMAR standard solenoid valve.

⑧ The composite material bearing shells and piston guide rings on the back of the rack, as well as the bearings on the output shaft, are used to prevent metal to metal friction and increase lubrication, resulting in low friction and long service life.

⑨ All fasteners are made of stainless steel material, which is resistant to corrosion for a long time.

⑩ The connection part complies with the new international standard specifications ISO5211, DIN3337 (F03-F25), making production and installation interchangeable and universal.

四、气动执行器的选用

当选用气动执行器时，在已确定阀门的扭矩上在增加安全值，水蒸气或非润滑的液体介质增加25%安全值；非润滑的浆料液体介质增加30%安全值；非润滑的干气介质增加40%安全值；非润滑用气体输送的颗粒粉料介质怎家60%安全值；对于清洁、低摩擦的润滑介质增加20%安全值（上述安全值为本公司理论推荐，仅供参考）。

When selecting pneumatic actuators, increase the safety value by 25% on the torque of the determined valve, and for water vapor or non lubricated liquid media; Non lubricating slurry liquid medium increases the safety value by 30%; Non lubricating dry gas medium increases safety value by 40%; How to achieve a safety value of 60% for particle powder media transported by non lubricating gas; For clean and low friction lubricating media, increase the safety value by 20% (the above safety values are theoretical recommendations of our company and are for reference only).