无码丰满熟妇juliaann与黑人_欧美精品老牛影院_寂寞人妻瑜伽被教练日_丰满少妇一级毛片在_热99精品这有里视频_超清aⅤ在线播放不卡无码_欧美 中文字幕 自拍_大香伊蕉国产最新视频_窄裙大腿教师波多野结衣_免费人成在线观看播放黄不卡

1. Main design specifications for high temperature and high pressure power station valves

Design and manufacture GB/T12234 ASMEB16.34

Structure length JB/T3595

Interface connection size JB/T3595 GB/T12224

Inspection and test JB/T3595 MSS SP61

High temperature and high pressure power station gate valve

High temperature and high pressure power station gate valve

Pressure and Temperature Reference JB/T3595 ANSI B16.34

2. Main pressure level of gate valve of high temperature and high pressure power station

Nominal pressure 200, 250, 320

Working pressure P 55 100V, P 55 140V, P 55 170V

3. Advantages of gate valve structure of high temperature and high pressure power station

1. Pressure self-tightening seal is adopted, and the two ends of the valve body branch are welded.

2. The valve seat and valve sealing surface are made of cobalt-based hard alloy plasma spray welding, which has good wear resistance and scratch resistance.

3. The valve stem is treated by corrosion-resistant nitriding, which has good corrosion resistance and scratch resistance.

4. High temperature and high pressure power station gate valve related standards