产品简介:
D643H气动法兰式硬密封蝶阀由角行程气动活塞式执行器及三偏心蝶阀阀体组成,采用三维偏心原理设计,使密封面的空间运动轨迹达到理想化,密封面相互之间无磨擦、无干涉、加之密封材料选择得当,从而使蝶阀的密封性、耐腐蚀性、耐高温性和耐磨性等得到了可靠的***。
Product profile:
D643H flange type pneumatic seal butterfly valve by the pneumatic rotary piston actuators and three eccentric butterfly valve body, the design principle of three-dimensional space trajectory eccentric, the sealing surface of the sealing surface to achieve the ideal, no friction, no interference between each other, and the sealing material selection properly, so that the sealing butterfly valve corrosion resistance, high temperature resistance and wear resistance has been a reliable guarantee.
工作原理:
D643H气动法兰式硬密封蝶阀阀杆轴线与蝶板密封面间偏置,并与阀体通道轴线偏置,阀座回转轴线与阀体通道轴线形成一个偏心角,故形成三偏心。蝶阀从0°~90°开启时,蝶板密封面会在开启的瞬间立即脱离阀座密封面,在其90°~0°关闭时,只有在关闭的瞬间,其蝶板圆锥形密封面才会接触并压紧阀座圆锥形密封。所以阀座与蝶板上的密封面之间无任何摩擦,去除了磨损和泄漏的可能性。
Working principle:
The D643H pneumatic flange type hard seal butterfly valve is biased between the valve stem axis and the butterfly plate seal surface, and it is offset to the valve body channel axis. The eccentric seat angle between the valve seat rotary axis and the valve body channel axis causes three eccentricity. When butterfly valve is opened from 0 degrees to 90 degrees, the butterfly plate sealing surface will immediately break away from the seat sealing surface at the moment of opening. When its 90 degree to 0 degree closes, only when closing the moment, its butterfly cone conical cover will be contacted and pressed to the conical seal of the valve seat. So there is no friction between the seat and the seal on the butterfly plate to remove the possibility of wear and leakage.
产品特点:
1、结构简单、紧凑、重量轻、易于安装和拆卸、维修方便。
2、三维编心结构,使蝶板越关越紧,其密封性能可靠,达到无泄漏。
3、蝶板密封面采用堆焊钴基硬质合金,密封面耐磨损,使用寿命长。
5、本蝶阀结构独特,“开关”仅需转动阀杆90°即可完成。耐高温、耐低温、耐腐蚀性,操作灵活、方便、省力、不受介质压力的高低影响,密封性能可靠。
Product features:
1. The structure is simple, compact, light weight, easy to install and disassemble, and convenient to repair.
2, three-dimensional core structure, making the butterfly plate tighter and tighter, its sealing performance is reliable, to achieve no leakage.
3. The seal surface of the butterfly plate is overlaid with cobalt based cemented carbide, and the seal face is wear-resistant and has long service life.
5, the butterfly valve structure is unique, "switch" only need to rotate the stem 90 degrees can be completed. High temperature resistance, low temperature resistance, corrosion resistance, flexible operation, convenient, labor-saving, not affected by the pressure of the medium, the sealing performance is reliable.
采用标准:
设计标准:GB/T12238-1989
法兰连接尺寸:GB/T9113.1-2000;GB/T9113.2-2000 GB/T9115.1-2000;GB/T9115.2-2000
结构长度:GB/T12221-1989
压力试验:GB/T13927-1992;JB/T9092-1999
Adopt the standard:
Design standard: GB/T12238-1989
Flange connection dimensions: GB/T9113.1-2000; GB/T9113.2-2000 GB/T9115.1-2000; GB/T9115.2-2000
Structure length: GB/T12221-1989
Stress test: GB/T13927-1992; JB/T9092-1999
执行机构:
采用新型系列GT型气动执行器,有双作用式和单作用式(弹簧复位),齿轮传动,***;大口径阀门采用系列AW型气动执行器拔叉式传动,结构合理,输出扭矩大,有双作用式和单作用式
1、齿轮式双活塞,输出力矩大,体积小。
2、气缸选用铝金材料,重量轻、外形美观。
3、可在顶部、底部安装手动操作机构。
4、齿条式连接可调节开启角度、额定流量。
5、执行器可选带电讯号反馈指示及各类附件以实现自动化操作。
6、IS05211标准连接为产品的安装更换提供了方便。
7、两端调的节螺钉可使标准产品在0°和90°有±4°的可调范围。确保与阀门的同步精度。
Executive Agency:
Using the new GT series of pneumatic actuators, a double acting and single acting (spring), gear drive, safe and reliable; AW series of large diameter valves using pneumatic actuator fork transmission, reasonable structure, large output torque, a double acting and single acting
1, the gear type double piston, the output torque is big, the volume is small.
2, cylinder selection of aluminum gold material, light weight, beautiful appearance.
3, the manual operation mechanism can be installed at the top and bottom.
4, the rack type connection can adjust the opening angle and the rated flow.
5, the actuator can select the charged signal feedback and all kinds of accessories to automate the operation.
6, the IS05211 standard connection provides convenience for the installation and replacement of the product.
7. The joint screws at both ends can make the standard products in 0 and 90 degrees with an adjustable range of 4 degrees. Ensure synchronous precision with the valve.
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