一、进口明杆软密封闸阀概述

进口明杆软密封闸阀（威盾VTON），Rising stem soft sealing gate valve，也叫明杆弹性座封闸阀，显示开度闸阀，是指可以较直观显示阀门开度，启闭迅速可靠，常用于消防及工业系统的软密封闸阀。一般安装于距地面较高的位置。

美国威盾VTON利用闸门整体包胶产生变形补偿作用达到良好的密封效果，克服了一般闸阀密封不良、漏水和生锈的现象。可广泛用于自来水、污水、建筑、石油、化工、食品、医药、轻伤、电力、船舶、冶金、能源系统等流体管线上作为调节和截流装置使用。

Rising stem soft seal gate valve (Weidun VTON), Rising stem soft sealing gate valve， Also known as a rising stem elastic seat seal gate valve, a display opening gate valve refers to a soft sealed gate valve that can visually display the valve opening, and can open and close quickly and reliably. It is commonly used in fire protection and industrial systems. Generally installed at a height above the ground.

The American shield VTON utilizes the deformation compensation effect generated by the overall sealing of the gate to achieve a good sealing effect, overcoming the problems of poor sealing, water leakage, and rust in general gate valves. It can be widely used as a regulating and intercepting device in fluid pipelines such as tap water, sewage, construction, petroleum, chemical, food, medicine, minor injuries, electricity, ships, metallurgy, energy systems, etc.

二、进口明杆软密封闸阀主要技术参数

压力等级：1.0MPa、1.6MPa
阀体耐压：1.5MPa、2.4MPa
密封试验：1.1MPa、1.76MPa
工作温度：0～80℃
适用介质：水、油、气及其他非腐蚀性流体

适用范围：城镇给排水管网、高层建筑、住宅小区、园林绿化、石油、小区供暖、电厂、环保等行业。

三、进口明杆软密封闸阀主要优点
1. 整体包胶：明杆软密封闸阀闸门采用整体包胶，其良好的覆盖性能与精确的几何尺寸，保证密封可靠，寿命。
2. 重量轻：阀体采用球铁制成，重量轻，安装方便。
3. 平底阀座：底部采用与水管相同的平底式阀座设计，不产生杂物淤积，密封更可靠。
4. 耐腐蚀：闸阀内腔采用无毒环氧树脂涂状，防止腐蚀和生锈，不但可供生饮，而且可用于污水系统。
5. 三“0”密封：阀杆采用三道0型环密封，磨擦阻力小，开关轻巧，不漏水。

1. Overall sealing: The gate of the rising stem soft sealing gate valve adopts overall sealing, which has good coverage performance and precise geometric dimensions, ensuring reliable sealing and service life.

2. Lightweight: The valve body is made of ductile iron, which is lightweight and easy to install.

3. Flat bottomed valve seat: The bottom adopts the same flat bottomed valve seat design as the water pipe, which does not produce debris accumulation and provides a more reliable seal.

4. Corrosion resistance: The inner chamber of the gate valve is coated with non-toxic epoxy resin to prevent corrosion and rust. It can not only be used for drinking, but also for sewage systems.

5. Three "0" seals: The valve stem adopts three "0" ring seals, with low friction resistance, lightweight switch, and no water leakage.