国产偷v国产偷v精品视频,日韩av经典一区二区,国产白丝一区二区三区,日韩不卡免费在线视频,欧美国产日产一区二区,久久国产一区二区三色,四虎国产精品成人,91全国偷拍免费视频,国产精品18夜夜嗨AV,午夜福利试看120秒体验区

<fieldset id="quiis"></fieldset>
<strike id="quiis"></strike>
    • 中文
    • |
    • English
    • 免責申明
    • |
    • 網(wǎng)站地圖
    banner_nei.jpg
    Control valvediao-jie-fa-0-HoCT0f
    A.jpg

    ZDL-21000/41000 Electric Control Valve

    The 21000 series single seat valve adopts a top-oriented structure, which can provide enough suppor
    • Stable quality: implement process quality control, pay attention to quality, and test in many aspects!
    • Reasonable price: effective internal cost control, cost reduction and customer service!
    • Quick delivery: perfect production line, sufficient inventory and shortened delivery time!
    • Tel:86-0550-2406812
    • Mobile phone:17856844858
    • E-mail:13605508812@139.com
    Description

    21000 series
    The 21000 series single seat valve adopts a top-oriented structure, which can provide enough support to ensure the stable operation of the valve core. The valve has good versatility and can be used for process control of various fluids.
    1. Various spools, including quick-change spools, low-capacity spools, soft-seal spools, low-noise and anti-cavitation spools, are widely used.

    2. It adopts top guide structure with large guide area and good stability.

    3. The leakage is small.

    4. The sealing surface of the valve core and valve seat can be surfacing welded with tungsten-chromium-cobalt cemented carbide to improve the service life of the regulating valve.

    41000 series

    The 41000 series sleeve valve inserts a cylindrical sleeve into the valve body, and is guided by the sleeve, equipped with a spool that slides up and down in it. The sleeve wall has windows with specific flow characteristics. , The valve core moves up and down to change the flow area of the sleeve window hole, thereby achieving the purpose of adjusting the flow rate.

    1. The rated flow coefficient is relatively large.

    2. The spool adopts a balanced structure, allowing a large pressure difference.

    3. The valve core moves in the sleeve, with a large guide area, good shock resistance and wear resistance.

    4. Separate the sealing surface and the throttling surface in structure, so that the scouring of the sealing surface is reduced when the medium flows, thereby increasing the service life.

    5. Strong adaptability, only need to replace the sleeve to meet different flow coefficients and different

    Requirements for flow characteristics.

    6. The auxiliary valve core is adopted to achieve a tight seal.

    7. Easy to disassemble, inspect and repair.

    Electric actuator parameters

    Browse:
    Return To The Top
    ?
    精品亚洲麻豆1区2区3区| 精品国产Av电影无码久久久| 欧美乱妇日本无乱码特黄大片| 久久天堂综合亚洲伊人HD妓女| 蜜桃视频在线免费观看一区二区| 久久偷拍视频在线观看| 亚洲熟女一区二区三区| 又爽又大又光又色的午夜视频| 最新国产成人剧情在线播放| 一本一道色欲综合网中文字幕| 国产精品视频一区国模私拍| 女同久久一区二区三区| 国产精品自在在线午夜出白浆| 国产国产人成免费视频77777| 果冻国产一区二区三区| 男女男精品视频| 亚洲一区二区三区高清AV| 久久久2019精品视频中文字幕| 国产伦精品一区二区三区视频优播| 国产中文字幕乱码在线| 国产精品色婷婷在线观看| 成人精品视频一区二区在线| 亚洲 欧美 偷自乱 图片| 日韩毛片免费观看| 国产欧美日韩在线精品| 狠狠色噜噜狠狠狠狠7777米奇| 超碰免费一区二区三区| 91精品人妻一区二区三区蜜臀| 亚洲国产成人精品无码区性色| 高清码无在线看| 日本一区二区三区精品视频| 91精品成人永久在线| 国产欧美在线观看精品一区污| 午夜理论2019理论无码| www中文字幕在线观看| 国产精品亚洲五月天高清| 亚洲伊人免费综合网站| 水蜜桃一二二视频在线观看免费| 亚洲精品国偷自产在线91正片| 天堂中文在线资源| 欧美日韩亚洲国产主播第一区|