Boiler continuous discharge valve is a kind of anti-aircraft multi-stage throttle control valve also called high pressure differential regulating valve.
Mainly used in thermal power plants
It is the control of high pressure difference of power plant in boiler drum and header. It excludes dirt and impurities in the container
Water quality of the certificate furnace.
Also can be installed in the pipeline, for the discharge and discharge use.
Technical characteristics
The fluid flow direction is constantly changing, increasing flow resistance, controlling fluid velocity and preventing cavitation.
The valve core 4 is throttling, the fluid channel is expanded at the stage, suitable for saturated liquid with pressure to reduce the saturation of saturated water vapor volume, and reduce fluid erosion abrasion.
The throttle surface is separated from the sealing surface. The surface of the valve core, valve core sleeve, stem and throttle element is hardened, and the hardness reaches the HRC70, which is close and long.
There is a big gap in the surface of the valve core, and the fluid contains 2 ~ 3mm welding slag and other solid particles. The valve core will not die, and the movement is flexible.
The fluid regulation property is good, the adjustment range is large.


Product specification
Size range 1 "- 2"
Pressure range ANSI 1500-2500LB
Suitable temperature below 420 ℃
Welding type and flange type of pipeline interface
Valve form direct, Angle, Z type
Valve cover form standard type, heat dissipation type
The inner part of the valve is guided by an unbalanced inner part structure and multi-stage throttle core structure
Valve material 20 # forged steel or stainless steel
Valve core material ASTM 440B or other stainless steel material
Valve core set material ASTM 440B or other stainless steel material
Packing due to nickel alloy wire reinforced graphite packing
Flow characteristic linear or equal percentage
The level of the leakage grade of ANSI B16.104 V VI
The driving mode can configure electric, pneumatic, hydraulic and other actuators