Features:
1. Butt welding connection type.
2. Rising stem wedge type metal single disc.
3. valve seat sealing surface material is chromium molybdenum vanadium steel surfacing cobalt chromium tungsten alloy.
4. the valve body material is chromium molybdenum vanadium steel.
5. Range of Working temperature: -20℃~600℃.
6. Medium: main steam.