电动调节V型球阀
electric V-type control ball valve
电动V型调节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，它将球阀和蝶阀的*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：
（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）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）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）当阀门关闭时，V型缺口与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，特别适用于管线结垢冻结或含有纤维和颗粒固体场合。
适用于高粘度、悬浮液、纸浆等不干净、含纤维介质场合。采用直连方式与执行机构连接，具有结构紧凑、尺寸小、重量轻、阻力小、动作稳定可靠等优点。执行机构根据用户要求配置UNIC、PSQ、HQ、DHL等型号电子式电动执行机构或GTX、AL等气动活塞式执行机构。调节阀用于调节介质的流量、压力和液位。根据调节部位信号，自动控制阀门的开度，从而达到介质流量、压力和液位的调节。调节阀分电动调节阀、气动调节阀和液动调节阀等。调节阀由电动执行机构或气动执行机构和调节阀两部分组成。调节并通常分为直通单座式和直通双座式两种，后者具有流通能力大、不平衡办小和操作稳定的特点，所以通常特别适用于大流量、高压降和泄漏少的场合。流通能力Cv是选择调节阀的主要参数之一，调节阀的流通能力的定义为：当调节阀全开时，阀两端压差为0.1MPa，流体密度为1g/cm3时，每小时流径调节阀的流量数，称为流通能力，也称流量系数，以Cv表示，单位为t/h。
Electric V- type control ball valve is a rotating ball valve that trim is metal or metal on the PTFE seal .It's absorbed best control characteristics in ball valve and butterfly valve, not only as control adjustment valve, but also as cut off valve . Flowing are the main features:
（1） There aren't any pipe joints of integral valve, therefore it's not subject to pipe or bolt influence, pressure case will not be subject to "mutation" of pressure.
（2） With V- type body , even if in low flow rate or high viscosity media, it can also guarantee accuracy of control within framework .
（3） Leakage-proof and durable seat with stainless steel trim of PTFE cup -shaped or O-ring in outer diameter. Valve is made of a large cross-section tungsten carbide carbide, bellows spring of the alloy enhance the structure of the seat.
（4） When valve is closed, V- notch and seat bring about wedge-shaped shearing , not only self-cleaning ,also prevent trim being stuck, especially it's suitable for freezing pipeline or containing fibers and particles of solid occasions. It's suitable for media of high viscosity ,suspension ,unclean paper pulp and fiber containing . Directly connection connected with actuator .The advantage are compact structure, small size, light weight, resistance movements, stable and reliable. Actuator can be equipped with UNIC,PSQ, HQ, DHL etc electronic actuator or GTX,AL etc , pneumatic piston actuator. Control valve is used for adjusting media flow, pressure, liquid level and divided into electric control valve, pneumatic control valve and hydraulic control valve . Control valve are composed of electric actuator or pneumatic actuator and control valve and is divided into two-seat single-block and straight-through type, the latter one with large flow capacity ,imbalance and stable operating characteristics , so it's usually used in large flow ,high pressure drop and litter leakage. Flow capacity , Cv is one of main parameters . Flowing capacity of control valve is defined as : both ends of valve of difference pressure is 0.1Mpa when it's closed. when fluid density is 1g/cm 3 ,every hour of flowing path number of control valve is called flowing capacity or flowing coefficient expressed by Cv and unit is t/h.
型 号：ZKHV-16P
公称压力：PN1.6、2.5、4.0、6.4Mpa
公称通径：DN15—DN600
zui大转角（α°）： 90°
工作温度：-40～300℃
传动机构：电动
输入信号：电信号:4~20mADC, 触点信号: 1kΩ 1~5VDC
阀座形式：（硬密封座）304、316、（软密封座）聚四氟乙烯
主要材质：阀体 （1）WCB （2）304 （3）316 （4）316L
阀 芯 : 304 、316 、316L
适用介质：制浆、水、悬浮颗粒、粉尘
注：DN15～DN250对夹式、DN300∽DN600法兰式
Model: ZKHV-16P
Nominal pressure :PN1.6、2.5、4.0、6.4Mpa
Nominal diameter : DN15-DN600
Maximum angle（a°）:90°
Working temperature:-40~300℃
Transmission :electric
signal input: signal :4 ～20mADC,
contact signal:1kΩ 1~5VDC
Seat type:（hard seal）304、316、
（sofe seal）PTFE
Material:body（1）WCB、（2）304（3）316 （4）316L
Trim :304、316、316L
Media:pulping、water、suspended particles, dust
