High-Pressure Heater Water Drain Control Valve

The high-pressure heater water drain control valve is a high-pressure difference control valve with a pressure-balanced sleeve structure. The sleeve and valve core in the valve trim are a mixed structure of multi-hole and single-stage. It controls the saturated water flow through the valve without cavitation. The sleeve has multi-stage throttling, and the throttling area gradually expands, which is suitable for the requirement of the increased volume of saturated water vaporization, reducing the flow velocity and the scouring of the fluid on the valve trim. The throttling part is separated from the sealing surface, effectively protecting the sealing surface. The surface of the valve trim is hardened to a hardness of about HRC70, resistant to scouring and with a long service life. This valve is applied to the water drainage of high-pressure heaters in thermal power plants and can also be used as a deaerator water level control valve. The high-pressure heater water drain control valve can be pneumatically or electrically controlled.