一、气动对夹式蝶阀 概述

D673气动对夹式蝶阀采用精密的J型弹性密封圈和三偏心多层次金属硬密封结构，被广泛用于介质温度≤425℃的治金 、电力、石油化工、以及给排水和市政建设等工业管道上，作调节流量和载断流体使用。该阀采用三偏心结构，阀座与碟板密封面均采用不同硬度和不锈钢制作，具有良好的耐腐蚀性，使用寿命长，本阀均有双向密封功能，产品符合国家GB/T13927-92阀门压力试验标准。

二、气动对夹式蝶阀 特点

1、本阀采用三偏心密封结构，阀座与蝶板几乎无磨损，具有越观越紧的密封功能。
2、密封圈选用不锈钢制作，具有金属硬密封和弹性密封的双重优点，无论在低温和高温的情况下，均具有优良的密封性能,具有耐腐蚀,使用寿命长等特点。
3、碟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。
4、大规格蝶板采用绗架结构，强度高，过流面积大，流阻小。
5、本阀具有双向密封功能，安装时不受介质流向的限制，也不受空间位置的影响，可在任何方向安装。
6、驱动装置可以多工位（旋转90°或180°）安装，便于用户使用。

三、D673H气动弹性金属密封蝶阀　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，安全可靠；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。

四、D673H气动弹性金属密封蝶阀　附件选项

根据不同控制和要求可选择下列附件：
切断型附件：单电控电磁阀、双电控电磁阀、限位开关回讯器。
调节型附件：电气定位器、气动定位器、电气转换器。
气源处理附件：空气过滤减压阀、气源处理三联件。

An overview, pneumatic wafer butterfly
D673 pneumatic wafer type butterfly valve adopts precision J elastic sealing ring and triple eccentric metal hard seal structure, multi-level is widely used in medium temperature of 425 ℃ or less metallurgy, electric power, petrochemical industry, water supply and drainage, and municipal construction and other industrial pipelines, used to adjust flow cutoff and body. Triple eccentric structure is used in the valve seat and disc plate sealing surface are made of different hardness and stainless steel has good corrosion resistance, long service life, this valve has the two-way sealing function, the product conforms to the national GB/T13927-92 valve pressure test standard.
Second, the aerodynamic characteristics of the wafer butterfly valve
1, the valve adopts triple eccentric seal structure, the seat and disc almost no wear and tear, with the view of the tight sealing function.
2, selection of sealing ring made of stainless steel, has the dual advantages of metal hard seal and elastic sealing, no matter in the case of low and high temperature, has good sealing performance, corrosion resistance, long service life, etc.
3, disc plate sealing surface using cobalt-based carbide surfacing, sealing surface wear resistance, long service life.
4, large size butterfly plate structure of supporting structure, high strength, large flow area, small flow resistance.
5, this valve has two-way sealing function, installation is not restricted by medium flow direction, and is not affected by spatial location, can be installed in any direction.
6, driving device can transfer (rotate 90 ° or 180 °) installation, making it easy for users to use.
Three, D673H pneumatic elastic metal sealing butterfly valve actuators
Using new series GT type pneumatic actuators with double acting and single acting (spring reset), gear transmission, safe and reliable; Large diameter valve adopts series AW pneumatic actuator fork type transmission, reasonable structure, large output torque, a double-acting and single acting
1, gear type double piston, output torque, small volume.
2, selection of cylinder aluminum alloy material, light weight, good appearance.
3, can be installed on the top and bottom manual operating mechanism.
4, the rack type connection adjustable opening Angle, rated flow.
5, actuators optional electric signal feedback instructions in order to realize automation and all kinds of accessories.
6, IS05211 standard connection provides convenience for the installation of the product replacement.
Section 7, both ends of the screw can make the standard product at 0 ° and 90 ° with a adjustable range of plus or minus 4 °. Ensure the synchronization precision with the valve.
Four options, D643H pneumatic elastic metal sealing butterfly valve accessories
In accordance with the requirements of different control and can choose the following attachments:
Cut type accessories: single double electric control electric control solenoid valve, solenoid valve, limit switch back to the news.
DiaoJieXing accessories: electrical locator, pneumatic positioner, electrical converter.
Air handling accessories: air filtering pressure reducing valve, air source treatment sanlian pieces.

 

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