一、进口防爆型电动调节球阀产品概述

美国威盾VTON进口防爆型电动调节球阀是一种转角90°的旋转类球阀，密封性能优良，流通能力大，流阻系数小，结构简单、维修方便、使用寿命长，阀体通道和连接管径相等并成一直径，介质几个可以毫无损失的流过。配用VODL、VOHQ等高性能执行机构、产品通常用于密封要求严格的场合，除控制气体、液体、蒸汽介质外，还适宜控制污水和含有纤维性杂质的介质，广泛用于石油、化工、冶金、轻工、造纸、电站、制冷等工作领域。

VTON explosion-proof electric regulating ball valve is a rotating ball valve with a 90 ° angle. It has excellent sealing performance, large flow capacity, small flow resistance coefficient, simple structure, convenient maintenance, and long service life. The valve body channel and connecting pipe diameter are equal and form a diameter, and the medium can flow through without any damage. Equipped with high-performance actuators and products such as VODL and VOHQ, they are usually used in situations with strict sealing requirements. In addition to controlling gas, liquid, and steam media, they are also suitable for controlling sewage and media containing fibrous impurities. They are widely used in the fields of petroleum, chemical industry, metallurgy, light industry, papermaking, power stations, refrigeration, and other work.

二、进口防爆型电动调节球阀产品特点

1.流体阻力小、球阀是所有发类中流体阻力最小的一种，即使是缩径球阀，其流体阻力也相当小。

2.止推轴承减小阀杆摩擦力矩，可使用阀杆长期操作平衡灵活。

3.阀座密封性能好，采用聚四氟乙烯等材料制成的密封圈，结构易于密封，而且球阀的阀封能力随着介质的压力增大而增大。

4.阀杆密封可靠，由于阀杆只做旋转运动而不是升降运动，阀杆的填料密封不易破坏，且密封能力随着介质的压力增设而增大

5.由于聚四氟乙烯材料具有良好的自润滑性，与球体的摩擦损失小，帮球阀的使用寿命长。

6.下装式阀杆和阀杆头部凸阶防止阀杆喷出，如果火灾造成阀杆密封破坏，凸阶与阀体间还可以形成金属接触，确保阀杆密封。

1. Low fluid resistance. Ball valves have the lowest fluid resistance among all types of valves, and even for reduced diameter ball valves, their fluid resistance is relatively small.

2. The thrust bearing reduces the friction torque of the valve stem and can be used for long-term operation and flexible balance of the valve stem.

3. The valve seat has good sealing performance, and the sealing ring is made of materials such as polytetrafluoroethylene, which is easy to seal. Moreover, the sealing capacity of the ball valve increases with the pressure of the medium.

4. The valve stem seal is reliable. As the valve stem only rotates instead of lifting, the packing seal of the valve stem is not easily damaged, and the sealing capacity increases with the increase of medium pressure

5. Due to the excellent self-lubricating properties of polytetrafluoroethylene material, the friction loss with the ball is small, and the service life of the ball valve is long.

6. The bottom mounted valve stem and the convex step at the head of the valve stem prevent the valve stem from spraying out. If a fire causes damage to the valve stem seal, metal contact can also be formed between the convex step and the valve body to ensure the valve stem is sealed.

三、进口防爆型电动调节球阀技术参数