Descrizione
Forged Stainless Steel Globe Valve for High-Pressure and High-Temperature Service
IL High Pressure Globe Valve, ASTM A182 F347H, 1 Inch, Class 2500 LB, is a premium forged steel valve designed for severe service applications involving extremely high pressure, elevated temperatures, and demanding process conditions. Manufactured from ASTM A182 F347H stabilized austenitic stainless steel, this valve offers excellent high-temperature strength, oxidation resistance, and resistance to intergranular corrosion.
Engineered in accordance with BS 1873, ASME B16.34, E API 623 requirements, the valve is widely used in power plants, petrochemical facilities, refinery units, hydrogen systems, and high-pressure steam applications where reliable throttling and isolation performance are critical.
IL valvola a globo design provides precise flow regulation, excellent shutoff capability, and superior durability under continuous high-pressure operation.
Product Overview
| Item | Specifica |
|---|---|
| Product Type | Valvola a globo ad alta pressione |
| Dimensione della valvola | 1 Inch (DN25) |
| Valutazione della pressione | ASME Class 2500 LB |
| Body Material | ASTM A182 F347H |
| Bonnet Type | Bolted Bonnet / Pressure Seal Bonnet |
| Disc Type | Plug Disc |
| Seat Design | Renewable Seat Ring |
| Termina connessione | BW, SW, NPT, RF Available |
| Norma di progettazione | BS 1873 / API 623 |
| Pressure-Temperature Rating | ASME B16.34 |
| Face-to-Face | ASME B16.10 |
| Inspection & Testing | API598 |
| Operazione | Handwheel, Gear, Electric Actuator |
| Applicable Media | Steam, Hydrogen, Gas, Oil, High-Temperature Fluids |
What Is ASTM A182 F347H?
ASTM A182 F347H is a niobium-stabilized austenitic stainless steel specifically designed for elevated-temperature service.
Compared with standard 304 stainless steel, F347H offers:
- Superior creep strength
- Enhanced high-temperature stability
- Excellent oxidation resistance
- Resistance to intergranular corrosion
- Improved performance after welding
These characteristics make F347H particularly suitable for superheated steam and refinery applications.
Product Features
Class 2500 High Pressure Design
The valve is engineered for extremely demanding pressure conditions.
Advantages include:
- Exceptional pressure containment
- Enhanced operational safety
- Long-term structural reliability
- Suitable for critical process systems
Class 2500 valves are commonly used in:
- Supercritical power plants
- Refinery process units
- Hydrogen service
- High-pressure steam systems
Precision Flow Control
Unlike gate valves, globe valves are specifically designed for throttling applications.
Benefits include:
- Accurate flow regulation
- Stable process control
- Reduced vibration
- Improved system efficiency
Forged Steel Construction
Forged F347H construction provides:
- Higher strength than cast materials
- Improved grain structure
- Better fatigue resistance
- Superior pressure performance
Renewable Seat Design
The renewable seat ring allows:
- Easier maintenance
- Extended service life
- Reduced lifecycle costs
- Improved sealing performance
Specifiche tecniche
Materials of Construction
| Component | Materiale |
|---|---|
| Corpo | ASTM A182 F347H |
| Cofano | ASTM A182 F347H |
| Disco | F347H + Stellite Overlay |
| Seat Ring | Stellite Hardfaced |
| Stelo | ASTM A182 F347H |
| Backseat | Integral |
| Imballaggio | Flexible Graphite |
| Guarnizione | Spiral Wound SS347/Graphite |
Design Standards
| Standard | Descrizione |
|---|---|
| API 623 | Steel Globe Valve Design |
| BS 1873 | Globe Valve Standard |
| ASME B16.34 | Pressure-Temperature Ratings |
| ASME B16.10 | Face-to-Face Dimensions |
| API598 | Inspection & Testing |
| ASME B16.25 | Butt Weld Ends |
| ASME B16.11 | Socket Weld Ends |
How a Globe Valve Works
A globe valve controls flow through the linear movement of a disc toward or away from a seat.
Opening Operation
- Handwheel rotates the stem.
- Disc moves upward.
- Flow passage gradually opens.
- Flow rate can be precisely controlled.
Closing Operation
- Stem lowers the disc.
- Disc contacts the seat ring.
- Tight shutoff is achieved.
- Flow is completely isolated.
This design provides excellent throttling characteristics compared to gate valves.
Typical Applications
Superheated Steam Systems
Widely installed in:
- Main steam lines
- Turbine bypass systems
- Boiler auxiliary systems
- Steam control stations
Application Example
Petrochemical Industry
Used for:
- Process flow regulation
- High-temperature hydrocarbon service
- Utility steam systems
- Cracking unit controls
Application Example
Hydrogen Service
F347H is suitable for:
- Hydrogen processing units
- Hydrogen transportation systems
- Clean energy facilities
- Refinery hydrogen networks
Power Generation
Applied in:
- Supercritical power plants
- High-pressure feedwater systems
- Steam regulation systems
- Turbine auxiliary pipelines
Why Choose F347H for High-Temperature Applications?
Excellent Creep Resistance
F347H provides superior strength during prolonged exposure to elevated temperatures.
Weldability
The niobium stabilization minimizes carbide precipitation during welding.
Corrosion Resistance
Excellent resistance to:
- Intergranular corrosion
- Oxidation
- High-temperature scaling
Long Service Life
Particularly suitable for continuous high-temperature operation.
Valvola a globo contro valvola a saracinesca
| Feature | Valvola a globo | Valvola a saracinesca |
|---|---|---|
| Flow Regulation | Excellent | Poor |
| Shutoff Performance | Excellent | Excellent |
| Pressure Drop | Higher | Lower |
| Throttling Capability | Designed For It | Not Recommended |
| Control Accuracy | High | Low |
For flow control applications, globe valves are generally the preferred choice.
Inspection and Testing
Every valve undergoes rigorous quality control including:
Hydrostatic Shell Test
Verifies body integrity under pressure.
High-Pressure Seat Test
Confirms sealing performance.
PMI Testing
Ensures F347H material compliance.
NDE Examination
Optional:
- Ultrasonic Testing (UT)
- Radiographic Testing (RT)
- Magnetic Particle Testing (MT)
- Dye Penetrant Testing (PT)
Dimensional Inspection
Ensures compliance with applicable standards.
Available Options
End Connections
- Butt Weld (BW)
- Socket Weld (SW)
- RF Flanged
- NPT Threaded
Actuation Methods
- Manual Handwheel
- Gear Operator
- Electric Actuator
- Pneumatic Actuator
Trim Options
- Stellite Trim
- Hardfaced Seat
- Low Emission Packing
- Oxygen Service Cleaning
Frequently Asked Questions
Why use F347H instead of F304?
F347H offers improved high-temperature strength and resistance to intergranular corrosion.
What is the advantage of a Class 2500 globe valve?
Class 2500 valves are designed for extremely high-pressure systems commonly found in power generation and refining applications.
Is this valve suitable for steam service?
Yes. F347H globe valves are widely used in superheated steam and high-pressure steam systems.
Can it be used for throttling?
Yes. Globe valves are specifically designed for precise flow regulation.
What industries commonly use F347H globe valves?
Power plants, petrochemical facilities, refineries, hydrogen plants, and chemical processing facilities.
Request a Quote
China High Pressure Globe Valve Manufacturer
We provide:
✅ API 623 & BS 1873 Compliant Manufacturing
✅ Forged Stainless Steel Valve Expertise
✅ Class 2500 High-Pressure Solutions
✅ Third-Party Inspection Support
✅ Fast Production Lead Times
✅ Worldwide Export Experience
Please provide:
- Valve Size (1 Inch)
- Pressure Rating (Class 2500)
- End Connection Type
- temperatura di esercizio
- Media Type
- Quantity Required
Our engineering team will provide a detailed quotation, technical datasheet, material certificates, GA drawing, and delivery schedule within 24 hours.
