8591205.8401.024.00 宝硕隔膜阀上海总代理

宝硕隔膜阀上海总代理 BUSCHJOST隔膜阀用耐腐蚀衬里的阀体和耐腐蚀隔膜代替阀芯组件，利用隔膜的移动起调节作用。隔膜阀的阀体材料采用铸铁、铸钢，或铸造不锈钢，并衬以各种耐腐蚀或耐磨材料、隔膜材料橡胶及聚四氟乙烯。衬里的隔膜耐腐蚀性能强，适用于强酸、强碱等强腐蚀性介质的调节。
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宝硕隔膜阀上海总代理 BUSCHJOST隔膜阀的结构简单、流体阻力小、流通能力较同规格的其他类型阀大；无泄漏，能用于高粘度及有悬浮颗粒介质的调节。隔膜把介质与阀杆上腔隔离，所以没有填料介质也不会外漏。但是，由于隔膜和衬里材料的限制，耐压性、耐温性较差，一般只适用于1.6MPa公称压力和150℃以下。
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BUSCHJOST隔膜阀的流量特性接近快开特性，在60%行程前近似为线性,60%后的流量变化不大。气动形式的隔膜阀尚可附装反馈信号、限位器及定位器等装置，以适应自控、程控或调节流量的需要。气动隔膜阀的反馈信号采用无触点传感技术。该产品采用薄膜式推进气缸，替代活塞气缸，排除了活塞环易损坏，造成泄漏而导致无法推动阀门启闭的弊端。当气源发生故障时，尚可操作手轮使阀门启闭。8554635.8920.024.00
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BUSCHJOST隔膜阀是在阀体和阀盖内装有一挠性隔膜或组合隔膜，其关闭件是与隔膜相连接的一种压缩装置。阀座可以是堰形，也可以是直通流道的管壁。隔膜阀的优点是其操纵机构与介质通路隔开，不但保证了工作介质的纯净，同时也防止管路中介质冲击操纵机构工作部件的可能性。此外，阀杆处不需要采用任何形式的单独密封，除非在控制有害介质中作为安全设施使用。隔膜阀中，由于工作介质接触的仅仅是隔膜和阀体，二者均可以采用多种不同的材料，因此该阀能理想地控制多种工作介质，尤其适合带有化学腐蚀性或悬浮颗粒的介质。隔膜阀的工作温度通常受隔膜和阀体衬里所使用材料的限制，它的工作温度范围大约为－50～175℃。隔膜阀结构简单，只由阀体、膜片和阀头组合件三个主要部件构成。该阀易于快速拆卸和维修，更换隔膜可以在现场及短时间内完成。8574203.9409.024.00
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BUSCHJOST隔膜阀特点：
（1）流体阻力小。
（2）能用于含硬质悬浮物的介质；由于介质只与阀体和隔膜接触，所以无需填料函，不存在填料函泄漏问题，对阀杆部分无腐蚀可能。
（3）适用于有腐蚀性、粘性、浆液介质。
（4）不能用于压力较高的场合。