7.D343X-10

D343X-10、D343AX-16蜗轮传动双偏心软密封蝶阀使用说明DOUBLE ECCENTRIC SOFT SEALING WORM GEAR DRIVEN BUTTERFLY VALVE 一、用途和主要性能规范Usage and main function and specification

1.本阀可用在非腐蚀性介质的管路和设备上作截流、接通和调节流量之用。This valve has been used in the uncrorrsive agents it can ajust and cut off the fliud. 2.主要性能规范Main function and specification

试验压力 公称压力型号Type Testing pressure MPa Nominal pressureType 强度(水)MPa 密封(水)MPa (MPa) Strength(water) Enclose(water) 适用温度℃ Suitable temperature 适用介质 Suitable medium MPa D343X-10 D343AX-16 1.0 1.6 1.5 2.4 MPa 1.1 1.8 0～80℃ 水 water,

二、结构和作用原理

Structure and function principle

1.本阀为蜗轮驱动法兰连接，执行GB/T12238标准双偏心蝶阀即阀杆旋转中心对阀体通径轴线和阀座密封面形成的偏心。本阀由阀体、蝶板、阀杆、密封板、压圈等零件组成。The vale is flange ends,according to the GB/T12238 standard, it is made up pf valve body,disc,stem,sealing cover and so on. 2.靠旋转蜗轮头手轮，使阀杆旋转90°，带动蝶板旋转90°，从而实现开启或关闭。由于该产品是双偏心结构，能在启闭过程中产生一种凸轮效应，降低了阀门开关扭矩，减少了阀座与蝶板间的磨损，延长了阀门的使用寿命。

We can carry out the opening and closing function of the valve by turning the hand

wheel, the disc whirl 90 degree, thereby, drive the stem whirl 90 degree. Because this is the double partiality structre, it can produce a cam result,it reduce the damage of the seat and the disc, also extend the life span of the valve.

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三、外型与主要零件材质

Outline measurement and main parts materials

1. 外型及连接尺寸

Outline and connecting measurement

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公称 通径 型号Type Nominal pressure L H0 D D1 b Z-Φd 尺寸size

Type 80 100 D343AX-16 150 200 250 300 114 127 140 152 162 178 244.5 252.5 343 375 437 485 200 220 285 340 405 460 160 180 240 295 355 410 22 22 24 29 30 31 8-Φ19 8-Φ19 8-Φ23 12-Φ23 12-Φ28 12-Φ28

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2. 主要零件材质

Outline and connecting measurement

公称 通径 型号Type Nominal L pressure H0 尺寸size D D1 b Z-Φd 100 190 239.5 220 150 210 302 200 230 353 250 250 407 300 270 466 350 290 510 400 310 8 450 330 573 500 350 6 285 340 395 445 505 565 615 670 180 240 295 350 400 460 515 565 620 24 26 28 8-Φ19 8-Φ23 8-Φ23 28 12-Φ23 28 12-Φ23 30 16-Φ23 32 16-Φ28 32 20-Φ28 34 20-Φ28 36 20-Φ31 40 24-Φ31 44 24-Φ34 D 343X-10 600 390 688 780 725 700 430 865 5 840 800 470 914 1015 950 900 510 971 1115 1050 46 28-Φ34 1000 550 1115 1230 1160 50 28-Φ37 1200 470 1251 1455 1380 56 32-Φ40 1400 530 1441 1675 1590 62 36-Φ43 1600 600 1606 1915 1820 68 40-Φ49 1800 670 1873 2115 2020 70 44-Φ49 2000 760 1996 2325 2230 74 48-Φ49 零件名称Parts name 零件材质Materials 阀体 Valve body 灰铸铁Grey cast iron 蝶板、密封圈压板disc、 seal ring disc 球铁 ball iron 阀杆Stem 碳钢、不锈钢 Cast steel 、Staintless steel 密封圈Seal ring 丁腈橡胶NBR 四、保管、安装与使用中的注意事项

The storage, installation and usage points for attention.

1.本产品应放在干燥的仓库内，严禁露天存放。

This product should keep in the dry storehouse; strictly prohibit keep in the open air

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2.长期存放，要定期保养

It should be take good care of the product’s health maintain regularly for a long term keep.

3.安装前要进行试压检验，合格后方可安

The lumen of the valve and pipeline should be cleaned and tested before installation; it can be installed only up to the mustard. 4.安装前应把管道和阀门内腔清理干净

The lumen of the valve and pipeline should be cleaned and tested before installation; 5.安装后产品不应受较大外力。

The valve should not bear a relatively big outside force after installation. 6.安装时介质流向要和阀体上箭头方向相一致。

The direction of the fluid must accorded with the arrow direction of the valve. 7.使用工况要符合性能规范中技术要求。

The using condition should be accorded with the request of the function and specification.

五、可能发生故障及消除方法

The using condition should be accorded with the request of the function and specification.

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可能发生的故障 The using condition should be accorded with the request of the function and specification. 填料渗漏 The leakage of the stuffing 发生故障的原因 The reason of the trouble 消除办法 Eliminate method 压紧填料 填料未压紧。 Press out the stuffing cover The stuffing cover is not press out. equably. 1.螺栓未拧紧。 Bolts are not 1.拧紧螺栓。 端盖渗漏 screwed down. Screwed down all the bolts equably The leakage of the bonnet 2.O型圈损坏。 The damage 2更换O型圈 O-typy ring Replace the O-typy ring 1.密封面间夹有杂物。 1.清洗密封面。 密封渗漏 The leakage of the sealing ring There are sundries among the sealing Cleanout the sealing cover and cover. eliminate sundries. 2.密封圈损坏。 The damage of the sealin. 2.更换密封圈。 Replace seal ring 20