Water-cooled High-Temperature Butterfly Valve is a special butterfly valve designed for high-temperature pipelines, primarily used in ultra-high-temperature gas pipelines in industries such as metallurgy, chemical, building materials, and power stations. Its core features include the use of heat-resistant steel, water-cooled interior of the valve plate, and boasts low water consumption, high temperature resistance, long service life, easy operation and maintenance, and flexible movement.

Working Principle and Application Scenarios

Water-cooled high-temperature butterfly valves, equipped with an internal water cooling system, effectively reduce the working temperature of the valve plate, enabling stable operation in high-temperature environments. Their operating temperature range is extensive, reaching up to 1300℃ (with an instantaneous temperature of 1400℃), and are suitable for regulating or cutting off various ultra-high-temperature gas media. These valves are commonly paired with various electric, pneumatic, or worm gear actuators for remote control and automatic regulation and cutting-off functions.

Structural Features

The water-cooled high-temperature butterfly valve is mainly composed of the valve body, valve stem, butterfly plate, and sealing ring. The valve body is cylindrical with a short axial length and houses the butterfly plate internally. The actuation method can be electric or pneumatic actuators. Additionally, the butterfly plate is made of double-layer heat-resistant alloy steel, internally cooled by water to ensure stable operation under high-temperature conditions. The valve outlet is equipped with a flow switch alarm function, and two flow control valves are installed at both the inlet and outlet to regulate the inflow water volume at the inlet.

Performance Parameters

The nominal bore range of the water-cooled high-temperature butterfly valve is DN150 to 3000mm, with a pressure range of PN1.0MPa, and a working temperature up to 1300℃ (with an instantaneous temperature of 1400℃). It is suitable for media such as flue gas and other ultra-high-temperature gases.