座机号:13285875255
产品展厅
卫生级隔膜阀,隔膜阀生产规格
  • 品牌:伊米勒
  • 产地:中国 浙江温州
  • 发布日期: 2021-11-30
  • 更新日期: 2023-03-09
产品详请
用途 食品、生物制药,化工,石油,酿酒,啤酒乳品等设备
通径范围 DN10 --DN150
材质 不锈钢
连接方式 快装,螺纹,法兰,焊接
规格 DN20-DN150
流体方向 直通
密封材料 三元乙丙,硅胶,氟橡胶,四氟
驱动方式 气动
加工定制

产品名称、:卫生级隔膜阀,隔膜阀

隔膜阀的结构形式与一般阀门很不相同,它是依靠柔软的橡胶膜或塑料膜来控制流体运动的。常用的隔膜阀材质分为铸铁隔膜阀,铸钢隔膜阀,不锈钢隔膜阀塑料隔膜阀

Product Name: Sanitary Diaphragm Valve, Diaphragm Valve

The structure of the diaphragm valve is very different from the general valve. It relies on a soft rubber film or plastic film to control the fluid movement. Commonly used diaphragm valve materials are divided into cast iron diaphragm valves, cast steel diaphragm valves, stainless steel diaphragm valves, and plastic diaphragm valves.


  • 中文名

    隔膜阀

  • 依    靠

    柔软的橡胶膜或塑料膜控制流体

 

  • 属    于

特殊形式的截断阀

  • 分    为

    铸铁隔膜阀,铸钢隔膜阀等

隔膜阀的结构形式与一般阀门大不相同,是一种新型的阀门,是一种特殊形式的截断阀,它的启闭件是一块用软质材料制成的隔膜,把阀体内腔与阀盖内腔及驱动部件隔开,现广泛使用在各个领域。常用的隔膜阀有衬胶隔膜阀、衬氟隔膜阀、无衬里隔膜阀、塑料隔膜阀。隔膜阀

隔膜阀是在阀体和阀盖内装有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。

原理及组成


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。

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。

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。

Principle and composition:


The diaphragm valve uses a corrosion-resistant lining body and a corrosion-resistant diaphragm instead of the valve core assembly, and the movement of the diaphragm is used for adjustment. The body material of the diaphragm valve is cast iron, cast steel, or cast stainless steel, and is lined with various corrosion-resistant or wear-resistant materials, diaphragm material rubber and polytetrafluoroethylene. The lining diaphragm has strong corrosion resistance and is suitable for the adjustment of strong corrosive media such as strong acid and strong alkali.

Diaphragm valve has simple structure, low fluid resistance, and larger flow capacity than other types of valves of the same specification; it has no leakage and can be used for the adjustment of high viscosity and suspended particulate media. The diaphragm isolates the medium from the upper cavity of the valve stem, so there is no packing medium and no leakage. However, due to the limitation of the diaphragm and lining materials, the pressure resistance and temperature resistance are poor, and it is generally only suitable for the nominal pressure of 1.6MPa and below 150°C.

The flow characteristic of the diaphragm valve is close to the quick opening characteristic, which is approximately linear before 60% of the stroke, and the flow rate after 60% does not change much. Pneumatic diaphragm valves can still be equipped with feedback signals, limiters and positioners to meet the needs of automatic control, program control or flow adjustment. The feedback signal of the pneumatic diaphragm valve adopts non-contact sensing technology. The product adopts a membrane type propulsion cylinder instead of a piston cylinder, eliminating the disadvantage of easy damage to the piston ring, causing leakage and unable to push the valve to open and close. When the air source fails, the handwheel can still be operated to open and close the valve.

浙江米勒洁净设备科技有限公司国内专业生产制造洁净卫生级阀门管件,主要应用于食品机械行业、制药机械行业、乳制品行业、酿酒饮料行业以及精细化工等行业高精度卫生级流体设备的专业生产厂家,产品规格齐全;产品主要有:

无菌隔膜阀卡箍直通隔膜阀,三通隔膜阀,法兰隔膜阀,气动隔膜阀,U型隔膜阀,罐底隔膜阀

无菌球阀卡箍直通球阀,螺纹球阀,焊接球阀,气动球阀,法兰球阀,电动球阀

卫生级蝶阀焊接蝶阀,卡箍直通蝶阀,螺纹蝶阀,法兰蝶阀,气动蝶阀,电动蝶阀

不锈钢卫生泵不锈钢卫生级离心泵,不锈钢卫生自吸泵,不锈钢酒精防爆泵,卫生奶泵,卫生饮料泵

止回阀,过滤器、呼吸器、换向阀、防混阀、安全阀

卫生级不锈钢管件焊接弯头,快装弯头,不锈钢三通,快装三通,四通,真空弯头,大小头

罐顶组件系列不锈钢储罐,发酵罐,不锈钢卫生级人孔,清洗球/器,视镜灯,排气阀等其它非标产品生产加工

 

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