国产丝袜肉丝视频在线-国产成人毛片在线视频-性欧美老人牲交xxxxx视频-夜爽8888视频在线观看-黑人巨大精品欧美一区二区桃花岛-国内视频精品-√天堂8在线网-久久久国产精品麻豆a片-人妻少妇伦在线无码-综合在线国产-日产精致一致六区麻豆-136fldh福利微拍acg-亚洲欧美日韩久久精品第一区-91网站在线免费观看-一区国产在线

Pneumatic parallel cut off valve

Products > Oil field valve > Pneumatic parallel cut off valve

Pneumatic parallel cut off valve

Model: ZSDⅡC (DX)
Nominal diameter: DN40 ~ 700mm
Nominal pressure: PN1.6 ~ 10.0MPa
Design and manufacture: GB / T12234-89
Structure length: GB / T12221-89
Flange size: JB79 GB / T9112-9131
Inspection and testing: JB / T9092-99 GB / T13927-92
Contact purchase
shared:
Structural characteristics and working principle
1, the output of the implementing agencies through the valve stem on the role of the main spool, is designed to a certain angle, the main spool, converted into horizontal force around, but also through the secondary spool, sealing plate squeeze the two seats to form a double Negative seal, the seal does not leak, the torque is small, the switch valve seal with friction-free, fundamentally solve the spool stuck in the valve body or open the shortcomings of the phenomenon.
2, the pneumatic actuator adopts piston-type mechanism, the solenoid valve as the upper and lower part of the cylinder to control intake and exhaust switching elements to control the vertical opening and closing pieces for vertical displacement to control the valve opening and closing purposes,
3, with the use of the echo device for sending the valve switch-like signal, solenoid valve to achieve long-distance control, centralized control, automatic control, and on-site operation.
5, the valve opening and closing state of the scene instructions, the coat of the extension of the indicator rod to rise and fall, marking the valve is fully open (outrigger in the highest position), the valve is fully closed (outrigger in the lowest position).
6, with a single spring-reset pneumatic device or air tank to ensure that the power supply, air supply failure automatically switch, safe, reliable, speed, environmental protection, energy saving.


The main dimensions
Nominal diameter [DN]40506580100125150200250300350400450500600700
L / mm
















H / mm1.6, 2.5MPa8659651065134515501810201022952510270032403655
4.0892995114614171642189620902312259428043278-
6.4892995114614171642189620902312259428043278-
10.08959061010116214321658191221052328261028203295-
Note Note△ for the coat type


主站蜘蛛池模板: 麻豆av在线免费观看| 无遮挡边吃摸边吃奶边做| 中文字幕人妻一区二区三区在线视频 | 超碰神马| 夜夜天堂| 久久成人国产| 特黄aaaaaaaaa毛片免| 日韩区一区二| 欧美日韩18| 河北彩花av在线| 在线不欧美| 羞羞羞的视频| 国产91丝袜| 天堂av资源在线| 久久高潮| 风间由美毛片| 日本高清视频www夜色资源| 裸体小视频| 奇米777色| 波多野结衣一区二区三区四区| 九七电影院97理论片| 国产一级一区| 青草青青视频| 国产午夜精品久久久久久久| 天天爽影院| 91porny丨首页入口在线| 日本护士高潮大叫| xxxxwwww视频| 美女调教视频| 亚洲制服丝袜诱惑| 亚洲国产一区二区在线观看| 欧洲黄色网| 免费h片网站| hs视频在线观看| 天天操天天射天天爽| 少女大人免费| 国产美女视频91| 少妇高潮惨叫久久久久久| 欧美精品免费在线观看| 成人在线免费观看视频| 天天爽天天插| 日本一区二区三区在线免费观看| 国产在线一区二区三区四区| 免费黄色电影片| 福利综合网| 无码国产69精品久久久久网站| 欧美精品自拍| 99精品欧美一区二区| 玉女心经在线看| 国产片一区二区| 久久婷婷国产综合| 99精品毛片| 91麻豆国产视频| 成人免费小视频| 欧美日韩第二页| 久久人人爽人人爽| 国产女优在线| 操欧美女| 中文字幕在线观看精品| 在线免费观看成人| 午夜资源在线| 久久2018| 特黄一级大片| 色悠悠久久久久| 中文字幕在线看人| 污污视频在线观看免费| 丁香六月婷婷| 日韩欧美中文字幕在线视频| 少妇喷白浆| 男女日批视频| 亚洲国产精品尤物yw在线观看| 偷拍女澡堂一区二区三区| aaa一级片| 午夜爱爱小视频| 中文字幕一区二区三区波野结| 中文字幕你懂的| 咪咪色av| 99这里有精品视频| 91禁在线动漫| 激情婷婷在线| 日韩aaaaaa| 日韩免费一区| 91久久人澡人人添人人爽欧美| 伊人365| www.久久久久| 欧美性大战久久久久久久蜜桃| 嫩草亚洲| 国产女人与zoxxxx另类| 久久久久www| 毛片视频网址| 影音先锋中出| 六月婷婷在线观看| 亚洲一区免费观看| 麻豆1区| 成人在线天堂| 亚洲男人的天堂av| 国产特级aaaaaa大片| 天天拍夜夜操| 性xxxⅹ直播免费看|