高压截止阀J41W_蒸馏塔_截止阀
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- 请求信息 : 2023-03-31 14:41:44 HTTP/1.1 GET : https://www.oulam.cn/product/globe_valve/002-000515.html
- 运行时间 : 0.466018s [ 吞吐率:2.15req/s ] 内存消耗:5,654.54kb 文件加载:241
- 查询信息 : 240 queries
- 缓存信息 : 0 reads,1 writes
- 会话信息 : SESSION_ID=c1ea8a2c1f8749970ca92b68a01978f4
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0.481099s
蒸馏塔是稀有金属钛等材料及其合金材料制造的化工设备,蒸馏塔具有强度高、韧性大、耐高温、耐腐蚀、比重轻等特性。而锻钢闸阀在整个蒸馏塔中也起到了重要的作用,在日常的生产过程中,起到了稳定设备安全的作用。由于欧拉姆拥有一万平米的智能工厂,相较于竞品,生产出的阀门寿命长,目前已经累计出口3000多台高压截止阀。
高压截止阀属于强制密封式阀门,所以在高压截止阀关闭时,必须向阀瓣施加压力,以强制密封面不泄漏。当介质由阀瓣下方进入阀内时,操作力所需要克服的阻力,是阀杆和填料的磨擦力与由介质的压力所产生的推力,关高压截止阀的力比开高压截止阀的力大,所以阀杆的直径要大,否则会发生阀杆顶弯的故障。近年来,从自密封的高压截止阀出现后,高压截止阀的介质流向就改由阀瓣上方进入阀腔,这时在介质压力作用下,关高压截止阀的力小,而开高压截止阀的力大,阀杆的直径可以相应地减少。
通过旋转截止阀的手轮,阀杆上升和下降带动阀瓣做平行于介质流向的直线位移,达到开启和关闭的目的。当手轮顺时针旋转时,工作介质通过阀瓣下面的通道进入。此时,施加的密封力必须等于或大于密封面上产生的所需比压和介质向上的力之和。截止阀分为直通式、直角式和直通式斜向截止阀三大类。
相较闸阀建构更为简单,制造与维修更为方便。密封面不易磨损、擦伤,专业研磨六级密封,启闭时阀瓣与阀体密封面之间无相对滑动,密封面间磨擦力小,使用寿命较长。
阀杆轴线与阀座密封面垂直,阀杆启闭操作时行程相对较短,并具有很好的切断动作,因此截止阀十分适合应用于介质的切断或调节及节流。
阀瓣于阀体密封面间的摩擦力比闸阀小,开启高度一般仅为阀座通道直径的1/4,因此比闸阀小的多。密封面不易磨损、擦伤,介质的压力起伏波动对密封性能无影响。
设计与制造:ANSI B16.34 E101
结构长度:ANSI B16.10 E101 GB/T1588.
1 压力温度等级:ANSI B16.34 E101
试验与检验:API598 E101 JB/T9092
法兰标准 GB、HG、JB