亚洲午夜理论电影在线观看,国产三级片在线免费观看,曰韩亚洲av人人夜夜澡人人爽

D43H - Flange type multi-layer hard sealed butterfly valve

Home >> Products >> Butterfly Valve Series

Details
Delivery

The sealing pair of the hard sealed butterfly valve is made of metal material on both sides. The sealing performance of hard sealed butterfly valves is average due to the sealing between metals, but they are resistant to high temperatures, compression and wear, and have a relatively long service life.

The sealing seat of the hard sealed butterfly valve is made of metal material, which has relatively poor sealing performance, but is wear-resistant and has strong compression resistance, making it suitable for pipelines with strong corrosiveness.

Performance ourphpacteristics of multi-level hard sealed butterfly valves:

1. The multi-level hard seal butterfly valve seal is composed of stacked soft and hard metal sheets, which are formed by high-precision mechanical processing and embedded on the disc plate to match the valve seat. It has the dual advantages of metal seal and elastic seal, and has excellent sealing ourphpacteristics in both low and high temperature conditions.
2. The valve seat and disc plate adopt a three-dimensional eccentric structure with almost no friction, and have a sealing function that becomes tighter as the valve is closed.
3. Unique structure, flexible operation, labor-saving, convenient, not affected by high or low medium pressure, reliable sealing performance, and long service life.
4. The butterfly valve is equipped with a sealing adjustment device. If the sealing performance decreases after long-term use, the disc sealing ring can be adjusted to move closer to the valve seat to restore the original sealing performance, greatly improving the service life.

Prev: D73H Clamp type elastic metal hard seal butterfly valve

Next: D41X - Flange type soft seal butterfly valve

在线日本精品a免费播放_97色伦午夜国产亚洲精品_在线不卡AV电影在线观看_成年人的天堂AV