一、进口国标波纹管截止阀

进口国标波纹管截止阀，GB bellows globe valve，也叫国标法兰波纹管截止阀，PN16波纹管截止阀，PN25波纹管截止阀，PN40波纹管截止阀，是美国威盾VTON针对中国市场，采用GB国标法兰连接的波纹管截止阀。

国标波纹管截止阀采用先进的金属波纹管密封技术制造，高性能金属波纹管，完全消除了普通阀门阀杆填料密封老化快易泄露的缺点，不但提高了使用能源效率，增加了销售设备的安全性，减少了维修费用及频繁的维修保养，还提供清洁安全工作环境。适用于工作压力 1.6～4.0MPa，工作温度-29～350℃的石油、化工、制药、化肥、电力行业等各种的工况上，切断或接通调节管路介质。

GB bellows globe valve, also known as GB flange bellows globe valve, PN16 bellows globe valve, PN25 bellows globe valve, and PN40 bellows globe valve, is a bellows globe valve designed by VTON for the Chinese market using GB flange connection.

The national standard corrugated pipe globe valve is manufactured using advanced metal corrugated pipe sealing technology, high-performance metal corrugated pipe, completely eliminating the disadvantages of ordinary valve stem packing sealing aging and easy leakage. It not only improves the energy efficiency of use, increases the safety of sales equipment, reduces maintenance costs and frequent maintenance, but also provides a clean and safe working environment. Suitable for cutting off or connecting regulating pipeline media in various working conditions such as petroleum, chemical, pharmaceutical, fertilizer, and power industries with a working pressure of 1.6-4.0 MPa and a working temperature of -29-350 ℃.

二、进口国标波纹管截止阀产品特点

1、产品结构合理、密封可靠，双重坚固耐用的波纹管密封设计（波纹管+填料），保证阀杆的零泄漏。没有流体损失，降低能源损失，提高工厂设备安全。并符合国际密封标准。
2、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
3、阀杆调质及表面氮化处理，有良好的抗腐和抗摩擦性能；阀杆升降位置指示，更直观。

1. The product structure is reasonable, the sealing is reliable, and the double sturdy and durable corrugated pipe sealing design (corrugated pipe+packing) ensures zero leakage of the valve stem. No fluid loss, reduce energy loss, and improve factory equipment safety. And comply with international sealing standards.

2. Sealing surface welding with Co based hard alloy, wear-resistant, corrosion-resistant, good friction resistance, and long service life

3. Valve stem quenching and surface nitriding treatment, with good corrosion resistance and friction resistance; Valve stem lifting position indication, more intuitive.

三、进口国标波纹管截止阀零件材料

四、进口国标波纹管截止阀结构图