一、进口电动不锈钢V型球阀概述
品牌:美国威盾VTON
进口电动不锈钢V型球阀属于固定球阀,也是单阀座密封球阀,调节性能是球阀中最佳的,V型球阀流量特性是等百分比的,可调比达100:1。它的V型切口与金属阀座之间具有剪切作用,V型球阀特别适合含纤维、微小固体颗粒、料浆等介质,使它同时具备调节和开关两种功能,与气动或电动执行器配套,广泛使用于工业过程自控系统中。
Electric stainless steel V-shaped ball valve belongs to fixed ball valve and single seat sealed ball valve, with the best adjustment performance among ball valves. The flow characteristics of V-shaped ball valve are equal in percentage, and the adjustable ratio can reach 100:1. Its V-shaped notch has a shearing effect between the metal valve seat, and the V-shaped ball valve is particularly suitable for media containing fibers, small solid particles, slurry, etc., making it have both regulating and switching functions. It is matched with pneumatic or electric actuators and is widely used in industrial process control systems
进口电动V型球阀无需另配伺服放大器,输入(4-20mADC或1-5VDC)信号及单相电源既可控制,实现对压力、流量、温度、液位等参数调节。阀芯采用V型球切口,与硬密封阀座相对转动产生剪切力,可将纤维切断,防止卡死。V型调节球阀具有流通能力,调节精度高,可调节比大,密封性好,重量轻等特点。电动V型调节球阀适用用于除小口径,角型,三通连接外的大部份场合,特别使用于泥浆各含有纤维性介质,以及含小微小固体悬浮特介质的调节。V型调节球阀广泛应用于造纸业,制糖、石油、化工、冶金等工业自动控制系统中。
The electric V-shaped ball valve does not require an additional servo amplifier. The input (4-20mADC or 1-5VDC) signal and single-phase power supply can be controlled to achieve adjustment of parameters such as pressure, flow rate, temperature, and liquid level. The valve core adopts a V-shaped ball notch, which generates shear force when rotating relative to the hard sealed valve seat, which can cut off the fibers and prevent jamming. The V-shaped regulating ball valve has the characteristics of flow capacity, high adjustment accuracy, large adjustable ratio, good sealing performance, and light weight. The electric V-shaped regulating ball valve is suitable for most occasions except for small diameter, angle, and three-way connections, especially for regulating mud containing fibrous media and small and micro solid suspended special media. V-shaped regulating ball valves are widely used in automatic control systems in industries such as paper, sugar, petroleum, chemical, and metallurgical industries.
二、进口电动不锈钢V型球阀性能参数
口径:DN15-DN800, 1/2-30寸
压力:1.6-50Mpa, 150LB-2500LB
材质:不锈钢304,316,CF3,CF3M,CF8,CF8M
类型:电动开关型,电动调节型
防爆等级:ExdⅡBT4;防护等级:IP67
电压:DC24V, AC220V, AC380V
连接方式:法兰
适用介质:水,油品,纤维介质等
三、进口电动不锈钢V型球阀产品特点
1、V型调节球阀阀体整体式结构:阀体都是整体侧装式结构,结构刚性强,不容易引起变形和外泄。
2、上下自润滑轴承:阀体内装有上下自润滑轴承,与阀杆接触面积大,承载能力高,磨擦系数小,使阀门的扭矩减少。
3、V型调节球阀阀座可根据介质和工况的需要,选金属硬密封或PTFE软密封:金属硬密封阀座密封表面堆焊硬质合金,球表面镀硬铬或作喷焊、离子氮化等硬化处理,使密封面使用寿命增强,耐温提高;软密封PTFE阀座或增强PTFE阀座密封性好,耐腐蚀,适应范围广。
4、V型调节球阀经济实用性:阀体重量轻,阀杆扭矩小,配用气动或电动执行器相应规格小,与其它类型的调节阀相比,性价比高。
5、V型调节球阀介质适应范围广:由于V型开口与阀座之间的剪切作用力,及阀内腔流道的光滑圆整,使介质不易积存于内腔,所以它除适合液体介质外,更适合于带纤维及固体颗料介质的系统控制。
6、小流量精确控制:通过对小口径阀芯特殊V型开口的加工,可实现小CV值精确控制。
1.V-shaped regulating ball valve body integral structure: The valve body is a side mounted integral structure with strong structural rigidity, which is not easy to cause deformation and leakage.
2.Upper and lower self-lubricating bearings: The valve body is equipped with upper and lower self-lubricating bearings, which have a large contact area with the valve stem, high load-bearing capacity, and low friction coefficient, reducing the torque of the valve.
3.The valve seat of V-shaped regulating ball valve can be selected as metal hard seal or PTFE soft seal according to the needs of the medium and working conditions: the sealing surface of the metal hard seal valve seat is welded with hard alloy, and the surface of the ball is plated with hard chromium or subjected to hardening treatment such as spray welding and ion nitriding, which enhances the service life of the sealing surface and improves temperature resistance; Soft sealed PTFE valve seats or reinforced PTFE valve seats have good sealing performance, corrosion resistance, and a wide range of applications.
4.Economic practicality of V-shaped regulating ball valves: The valve body is lightweight, the valve stem torque is small, and the corresponding specifications for pneumatic or electric actuators are small. Compared with other types of regulating valves, it has a high cost-effectiveness.
5.The V-shaped regulating ball valve has a wide range of media applications: due to the shear force between the V-shaped opening and the valve seat, as well as the smooth and round flow path in the valve chamber, the media is not easy to accumulate in the inner chamber. Therefore, in addition to being suitable for liquid media, it is more suitable for system control with fiber and solid particle media.
6.Small flow precise control: By processing the special V-shaped opening of the small diameter valve core, precise control of small CV values can be achieved.
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