Ten characteristics of the stop valve of the exhaust flue

The exhaust pipe stop valve is mainly used in the steam turbine exhaust system below 600MW to prevent the flow of medium or water, and to protect the water pump and other important measures. In the very state of backflow, power failure and accident of pipeline medium, the valve can be closed instantaneously, and the closing time is less than 0.5 seconds.
Characteristics of exhaust valve stop valve
1, the acceptance scale of design and manufacture is ANSIB16.34, E101 or JB/T3595. The strength and sealing function fully meet the requirements of the scale. The fire valve under vacuum condition is tested in vacuum, and the whole machine life is satisfied with the requirements of the user.
2, for different temperatures, the main material is carbon steel or high temperature steel, and the sealing surface is hardfacing.
3, the disc is designed for connecting the rocker and the valve stem. It can be matched with the valve seal face to ensure that the sealing surface is anastomosed.
4, the valve seat sealing surface inclines to a certain angle, reduces the closure time, reduces the impact, protects the equipment itself and the pipeline safety.