品牌：RETZ瑞茨/我们一直致力于流体控制和测控领域的持续创新，始于2005……
(偏芯旋转阀)气动偏芯半球阀适用于泥浆和含有纤维介质，以及含有微小固体悬浮物的介质，广泛应用于石油、化工、造纸、污水处理等管道中做开关切断或流量调节 retz (Partial core rotary valve) Imported pneumatic partial core hemispherical valve is suitable for mud and media containing fibers, as well as media containing small suspended solids. It is widely used in pipelines such as petroleum, chemical, papermaking, sewage treatment, etc. for switch off or flow regulation
进口气动偏芯半球阀产品详情 Product details
气动偏芯半球阀采用偏心轴旋转来控制流体的角行程偏芯旋转阀。阀芯的回转中心不与旋转轴同心，可减少磨损，阀芯后部设有一个导流翼，有利于流体稳定流动，半球体中线与阀杆中线偏置尺寸，与阀座中线偏置尺寸，全开时球体与阀座完全脱开，并有一定的间隙，回转半径分为长半径和短半径，在长半径转动轨迹的切线会与阀座密封面形成一个θ角，在阀门启闭时，半球相对阀座面有一个渐出脱离和渐入挤压的作用，从而降低了启闭时阀座与半球之间的机械磨损和擦伤，提高了使用寿命 RETZ品牌 (eccentric rotary valve) The inlet pneumatic eccentric hemisphere valve uses eccentric shaft rotation to control the angular stroke eccentric rotary valve of fluid. The rotation center of the valve core is not concentric with the rotation axis, which can reduce wear. A guide wing is set at the rear of the valve core, which is conducive to stable fluid flow. The center line of the hemisphere is offset from the center line of the valve stem, which is offset from the center line of the valve seat. When the valve is fully opened, the sphere and the valve seat are completely separated, and there is a certain gap. The rotation radius is divided into long radius and short radius. The tangent line of the rotation track at the long radius will form a gap with the sealing surface of the valve seat θ Angle, when the valve is opened and closed, the hemisphere has a gradual separation from the valve seat surface and a gradual extrusion effect, thus reducing the mechanical wear and abrasion between the valve seat and the hemisphere during opening and closing, and improving the service life
进口气动偏芯半球阀特点Characteristic
1.球体和阀座完全脱离，消除了密封圈的磨损，克服了传统球体阀座与球体密封面始终磨损的问题，非金属弹性材料被嵌入金属座中，阀座金属面受到良好的保护 The ball and the valve seat are completely separated, which eliminates the wear of the sealing ring and overcomes the problem that the traditional ball valve seat and the ball sealing surface are always worn. The non-metallic elastic materials are embedded in the metal seat, and the metal surface of the valve seat is well protected
2.半球切口具有切削功能，在关闭时能将介质中的杂物切断，保证阀门正常启闭 The hemispherical notch has the cutting function, which can cut off the sundries in the medium when it is closed to ensure the normal opening and closing of the valve
3.半球用双金属，母材上堆焊不同的合金，阀座也作相应堆焊经特殊的处理，密封面组合成防腐、耐磨、高强度等各种类型，满足进口气动偏芯半球阀4.jpg不同场合需求 Hemisphere bimetal, different alloys are surfacing welded on the base metal, and the valve seat is also subject to corresponding surfacing. After special treatment, the sealing surface assembly is made of anti-corrosion, wear-resistant, high-strength and other types to meet the needs of different occasions
4.开闭迅速，从全开到全关只要旋转90°，便于远距离的控制 It can be opened and closed quickly, and only needs to rotate 90 ° from full opening to full closing, which is convenient for remote control
进口气动偏芯半球阀 性能描述 Performance description
公称通径 DN(mm) 40 50 65 80 100 125 150 200 250 300
额定流
量系数
KV 全腔型 30 55 100 135 230 320 500 850 1300 1750
60%腔型 - - - - - - 300 510 780 1050
40%腔型 12 20 40 54 92 128 200 340 520 700
允许压差(MPa) ≤公称压力
阀体形式 整体铸造球形体
阀芯形式 偏心旋转阀芯(带导流翼)
流量特性 近似等百分比
动作范围 全开60°
泄露量Q 软密封VI级、硬密封IV级，符合ANSI B16.104标准
基本误差 ±1%
回差 ±1%
死区 ≤1%
可调范围 全腔型(100：1)、60%腔型(60：1)、40%腔型(40：1)
配置执行机构 AT、AW系列单双作用气动执行器
控制方式 开关两位控制、4～20mA模拟量信号控制
