一、进口螺纹波纹管截止阀概述

进口螺纹波纹管截止阀（威盾VTON），thread Bellows globe valve，也叫螺纹式波纹管截止阀，内螺纹波纹管截止阀，螺纹德标波纹管截止阀，是指采用螺纹的连接方式的波纹管密封截止阀。

美国威盾VTON螺纹波纹管截止阀密封面堆焊Co基硬质合金,耐磨,耐腐,抗摩擦性能好,使用寿命长,确保阀杆处零泄漏,特别适用于易燃、易爆、有毒及贵重介质的管路。波纹管采用不锈钢或 Inconel 材料制造,波纹管密封结构设计合理，耐疲劳，使用寿命长。波纹管截止阀广泛适用于公称压力PN1.6～16MPa,工作温度-29～350℃的石油、化工、制药、化肥、电力行业等各种工况的管路上，切断或接通管路介质。

Thread Bellows Globe Valve, also known as Thread Bellows Globe Valve, Internal Thread Bellows Globe Valve, and Thread German Standard Bellows Globe Valve, refers to a bellows sealed globe valve that uses a threaded connection method.

The sealing surface of the American Weidun VTON threaded corrugated pipe globe valve is welded with Co based hard alloy, which is wear-resistant, corrosion-resistant, has good friction resistance, and long service life, ensuring zero leakage at the valve stem. It is particularly suitable for pipelines with flammable, explosive, toxic, and valuable media. The corrugated pipe is made of stainless steel or Inconel material, and the sealing structure of the corrugated pipe is designed reasonably, resistant to fatigue, and has a long service life. Bellows globe valves are widely used in various working conditions such as petroleum, chemical, pharmaceutical, fertilizer, and power industries with nominal pressure PN1.6~16MPa and working temperature -29~350 ℃, to cut off or connect pipeline media

二、进口螺纹波纹管截止阀特性

1、双重的密封设计(波纹管+填料)若波纹管失效，阀杆填料也会避免泄漏,并符密封标准；

2、没有流体损失，降低能源损失，提高工厂设备安全；

3、使用寿命长，减少维修次数，降低经营成本；

4、坚固耐用的波纹管密封设计，保证阀杆的零泄漏，提供无需维护的条件；

5、气体介质阀座采用PTFE软密封材料提高本阀的密封性；

6、耐高温≤425℃阀座采用锥面硬密封。达到气密性能零泄漏。

三、进口螺纹波纹管截止阀的相关参数