进口防爆电动三通法兰球阀
进口防爆电动三通法兰球阀特点基本信息Basic information on the characteristics of imported explosion-proof electric three - way flange ball valve
适用于管道压差大，密封要求严格的开关和切断管道介质的工艺场合和流体控制系统。
工作温度: -20℃ 至+150℃ (+250℃ 特殊密封).
工作压力: PN16, PN25 - PN40 - PN64 -PN100范围
空气、蒸汽、水、气体、石油和石化产品、腐蚀性介质。
电动球阀;，V型电动球阀是一种芯阀座采用金属，或金属对聚四氟乙烯密封配合的旋转球阀，电动球阀将球阀和蝶阀的*控制特性结合成一体,既可用作控制调节阀，又可作关断切断阀。其主要特点是:It is suitable for the large pressure difference of pipeline, the strict sealing of the switch and the process of cutting the medium of the pipe and the fluid system.
temperature: -20 C to +150 C (+250 C special seal).
pressure: PN16, PN25 - PN40 - PN64 -PN100 range
Air, steam, water, gas, petroleum and petrochemical products, corrosive medium.
The electric ball valve; Shanghai V electric valve and ball valve, a valve seat with metal core, rotating ball valve or metal of PTFE sealing, the best characteristics of electric ball valve and butterfly valve are combined into a whole, can be used as a valve, but also can be used as a cut off valve. Its main features are:
(1)不带任何管接头的整体式阀体，因此不受管道或螺栓应力影响，并且由于阀体无任何管接头，故耐压壳体不会受压力"突变"的影响;
(2)电动球阀具有一个V型阀体，即使在小流量或高粘度介质的情况下，也可在整个量程范围内，保证控制的精确性;
(3)电动球阀防漏耐用的阀座在其外径处衬有带不锈钢内芯PTFE杯形或是O型密封圈，阀座用截面较大的钨钴硬质合金制成，通过一个合金的波纹弹簧进一步增强了阀座的结构;
(4)当电动球阀阀门关闭时，V型缺口与电动球阀阀座之间产生楔形剪切作用，并既具有自洁功能又可防止球芯卡死，电动球阀特别适用于管线结垢冻结或含有纤维和颗粒固体场合。(1) the integral valve body without any pipe joints is not affected by the stress of pipes or bolts, and because the valve body has no joints, the pressure hull will not be affected by the sudden change of pressure.
(2) the electric ball valve has a V valve body. Even in the case of small flow or high viscosity medium, the precision of the can be ensured within the range of the whole range.
(3) the leakage proof and durable valve seat of the electric ball valve is lined with stainless steel inner core PTFE cup or O type seal ring at its outer diameter. The valve seat is made of tungsten cobalt hard alloy with larger cross section, and the structure of the valve seat is further enhanced through the corrugated spring of an alloy.
(4) when the electric ball valve is closed, wedge-shaped shearing effect between the V notch and the electric ball valve seat is achieved, and it has both self-cleaning function and preventing the core stuck. The electric ball valve is especially suitable for pipeline scaling, freezing or containing fiber and granular solid occasions.
流体范围
空气、蒸汽、水、气体、石油和石化产品、腐蚀性、若酸碱介质。安装检查
1、安装完毕后，启动球阀开、关数次，应该动作灵活，受力均匀，球阀工作正常。
2、根据管道压力设计要求，通压后检测球阀与管道法兰结合面的密封性能。常见故障
类型:电动球阀典型的故障，安全阀门，阀杆之间的弹簧和一个安装在驱动器的行为在其门阀门往复敦促大门之一的地位，这可能是封闭的身体，控制流体应用于活塞在干在执行机构克服弹簧力，从而维持在其它位置通常在开，所以作为控制条件下*维持，当这种结构阀弃置在大深度，和身体的压力大大低于周围海面压力下降，电动球阀弹簧必须足够大，关闭阀门的力量由于身体的压力作用就干不足够移动门其失败的位置。在情况下可能发生。从而减少了执行机构的规模增加了阀门的深度评级。
工作原理
电动球阀它具有旋转90度的动作，旋塞体为球体，有圆形通孔或通道通过其轴线。球阀在管路中主要用来做 电动球阀切断、分配和改变介质的流动方向，它只需要用旋转90度的操作和很小的转动力矩就能关闭严密。球阀zui适宜做开关、切断阀使用，发展已将球阀设计成使它具有节流和控制流量之用，如V型球阀。电动球阀的主要特点是本身结构紧凑，密封可靠，结构简单，维修方便，密封面与球面常在闭合状态，不易被介质冲蚀，易于操作和维修，适用于水、溶剂、酸和天然气等一般工作介质，而且还适用于工作条件恶劣的介质，如氧气、过氧化氢、甲烷和乙烯等，在各行业得到广泛的应用。球阀阀体可以是整体的，也可以是组合式的。
