High Temperature Globe Valve

High-temperature globe valve is designed for high-temperature media (such as steam, thermal oil, molten salt, etc.) designed for the type of valve, through the valve valve flap along the centre line of the valve seat vertical movement to achieve opening and closing, mainly used to control the flow of high-temperature fluids and cut off.

Its core functions include:

Seal cut-off: to prevent leakage of high-temperature media;

flow regulation: flow control can be achieved in the partially open state;

high-pressure tolerance: to adapt to high-temperature working conditions of the system pressure High pressure resistance: to adapt to the system pressure fluctuations in high temperature conditions.

Structural features

Bellows sealing structure

Metal bellows is used to replace the traditional packing to avoid the leakage caused by the aging of packing under high temperature and improve the reliability of sealing.

Wear-resistant sealing surface

Valve flap and seat are overlay welded with Stellite cobalt-based cemented carbide (Stellite), which improves wear resistance by 3-5 times, and the temperature resistance can reach more than 650℃.

Compact welded connections

The valve body is welded to the pipeline (e.g., butt weld end BW or socket weld SW), reducing leakage points and making it suitable for high-pressure, high-temperature systems.

Optimised stem design

The valve stem is tempered + surface nitrided, with a hardness of HV 900-1100, which is resistant to high-temperature corrosion and abrasion and extends the service life by 50%.

 

high temperature globe valve

 

Application and Function

• Petrochemical Industry

Scenario: Catalytic cracking unit, high-temperature oil pipeline;

Function: Solve valve jamming and seal failure caused by high-temperature heavy oil coking.

• Power Industry

Scenario: Power plant main steam pipeline, boiler feed water system;

Function: Prevent supercritical steam (>550℃) from eroding the valve seat and reduce the frequency of shutdown and maintenance.

• Metallurgy and Coking

Scenario: Coke oven gas recovery, high-temperature flue gas treatment;

Function: Resist erosion of particle-containing media and extend valve service life.

• New Energy and Nuclear Power

Scenario: Molten Salt Energy Storage System, Nuclear-grade Steam Isolation;

Function: Ensure zero leakage of radioactive media and meet ASME nuclear power standards.

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