Core product positioning
The special ball valve specially designed for ultra-high temperature working conditions adopts ASTM A182 F316 forged steel valve body, integrated heat dissipation fins and metal-to-metal hard sealing system. It can operate stably in an ultra-high temperature environment of 545℃, achieving safe cut-off and reliable control of high-temperature media.
Technical specification parameter table
| Category | specification parameters |
| Valve body material | ASTM A182 F316 forged steel |
| Maximum operating temperature | 545℃ |
| Pressure rating | Class 150 - Class 600 |
| Sealing form | metal-to-metal hard seal |
| Heat dissipation structure | integrated heat dissipation fin design |
| Valve stem packing | reinforced with flexible graphite and Inconel 718 |
| Connection method | RF flange/RTJ ring connection/butt-weld end |
| Fire protection standards | API 607 / API 6FA |
| Design standard | ASME B16.34 |
Core design features
1. Ultra-high temperature metal hard seal system
Special alloy sealing pair
Sphere: F316 base + supersonic sprayed Stellite 6 alloy
Valve seat: Inconel 718 spring loading +Stellite 21 sealing surface
Thermal compensation design
A disc spring group is adopted to compensate for the difference in thermal expansion at high temperatures
Ensure that the sealing specific pressure remains constant throughout the entire process from room temperature to 545℃
Surface treatment process
The sealing surface is mirror-polished to Ra≤0.2μm
Hardness gradient design: Surface HRC 58-62, substrate HRC 28-32
2. Integrated heat dissipation fin system
High-efficiency heat dissipation design
Radial heat dissipation fins are integrated at the valve cover area, increasing the heat dissipation area by 300%
Fin shape and spacing optimized by computational fluid dynamics (CFD)
Temperature control effect
The temperature in the valve stem area is reduced by 200-250℃ (compared with no heat dissipation design)
The working temperature of the stuffing box should be controlled below 345℃
Structural integrity
The fins and valve cover are integrally forged without thermal stress concentration
It has excellent thermal shock resistance and can adapt to frequent temperature shocks
3. Enhanced high-temperature packing system
Multi-layer combined seal
Main seal: Reinforced flexible graphite ring, with a temperature resistance of 650℃
Intermediate seal: Inconel 718 bellows secondary seal
Dust-proof sealing: Special ceramic fiber packing
Automatic compensation mechanism
The disc spring assembly provides continuous clamping force
Support online filler replenishment
Detailed explanation of performance advantages
High-temperature performance
Material stability: F316 can be used for a long time at 545℃, ensuring that the σ phase precipitation is controlled
Sealing reliability: After 1000 thermal cycle tests (room temperature ↔545℃), it still maintains the ANSI B16.104 Class V sealing grade
Operational stability: The torque change rate at high temperatures is less than 15%
Heat dissipation performance
Measured data
When the medium temperature is 545℃, the temperature in the valve stem packing area is ≤345℃
The temperature of the actuator installation interface is ≤200℃
Service life
The service life of the packing is extended by 3 to 5 times
The service life of the bearing system is extended by 2 to 3 times
Safety performance
Fire safety: Passed the fire test of API 607 Version 4
Anti-static design: High-temperature anti-static system, resistance value < 10Ω
Emergency seal: Standard equipped with an emergency sealant injection system
Typical application fields
Petrochemical industry
Catalytic cracking unit reaction regeneration system
High-temperature oil and gas pipelines for delayed coking units
Inlet and outlet pipelines of the ethylene cracking furnace
Energy and electricity
The main steam system of ultra-supercritical units
Gas turbine exhaust system
Inlet and outlet of the waste heat boiler
Metallurgical industry
Coke oven gas recovery system
High-temperature flue gas purification system
Medium control in heat treatment furnaces
Special fields
Solar thermal power generation system
Auxiliary system of nuclear power plant
High-temperature heat medium system for chemical processes
Summary
The F316 high-temperature heat dissipation fin metal hard seal floating ball valve, through multi-dimensional innovations in materials science, thermodynamic design and sealing technology, provides:
Extreme temperature capability: Stable operation at ultra-high temperatures of 545℃
Revolutionary heat dissipation solution: Integrated heat dissipation fins ensure the temperature safety of key components
Reliable sealing guarantee: The special alloy sealing system is suitable for extreme working conditions
Long service life: The service life is increased by 3 to 5 times at high temperatures
Applicable customer groups: Critical pipeline systems in ultra-high temperature conditions in industries such as petrochemical, power, and metallurgy.
| Brand | DIDTEK |
| Structure | Ball |
| Valve Material | Didtek provide cast steel, stainless steel, special alloy, CI, DI etc |
| Valve Type | Didtek Produce Ball Valve |
| Valve Test | 100% quantity tested before delivery |
| Valve Guarantee | 18 months after shipments and 12 months after installed |
| Valve Structure | Ball Valve |
| Valve Delivery | 15 - 30 days |
| Valve Sample | Sample Available by Didtek Valve |
| Valve Color | Customer request |
| Valve Packing | Plywood Case for Ball Valve |
| MOQ | 1 Set |
| Valve Certificate | API6D/CE/ISO9001/ISO14001 |
| Place of Origin | Zhejiang, China (Mainland) |
| Delivery Detail: | Shipped in 15-30 days after payment |
| Port | Shanghai Or Ningbo |
| Payment Terms | L/C,D/A,D/P,T/T, Western Union |
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