精品国产一区二区三区四区阿崩-曰韩精品无码一区二区视频-天天狠天天天天透在线-欧美性插b在线视频网站-高潮流白浆潮喷在线播放视频

1. The valve cavity adopts pressure self-tightening sealing structure, sealing performance is good.
2. The sealing surface of valve disc and seat is made of cobalt-based hard alloy with good abrasion resistance, high temperature resistance, good abrasion resistance and long service life.
3. The valve stem has good corrosion resistance and abrasion resistance after nitriding treatment.
4. High temperature creep resistance design.
5. The valve cover stuffing box depth is reasonable, packing with corrosion inhibitor, sealing reliable.
6. The valve has an upper sealing structure to ensure that the stem will not leak when the valve is open and running.
7. The valve drive mode is manual, gear transmission, electric, can achieve remote control and automation requirements.

Product model: Z960Y
Nominal size: NPS 2"~20" DN50 ~ 500mm
Nominal pressure: Class900 ~ 2500Lb PN150 ~ 20MPa
Main material: carbon steel, alloy steel
Applicable temperature: -29℃ ~ +600℃
Driving mode: manual, pneumatic, electric
Design criteria: API 600, ASME B16.34, DL/T 531, JB/T3595
Structure length: DL/T 531, ASME B16.10, GB/T 12221
Connection standard: DL/T 531, JB/T3595, ASME B16.25
Pressure test: API 598, GB/T 13927, JB/T 9092
Pressure-temperature classes: API 598, GB/T 13927, GB/T 26480, JB/T9092, JB/T3595