الوصف
32 Inch Class 300 Metal Seated Flanged Butterfly Valve for High-Temperature Industrial Service
ال 300LB Flanged Butterfly Valve, 32 Inch (DN800), ASTM A216 WCB Body, Metal Seat is a high-performance industrial valve designed for demanding applications involving high temperatures, abrasive media, steam, oil, gas, and process fluids. Featuring a rugged carbon steel WCB body, precision-engineered metal seating, and heavy-duty flanged connections, this valve provides reliable shutoff performance and extended service life in severe operating conditions.
Unlike soft-seated butterfly valves, the metal seat construction offers superior resistance to wear, erosion, and elevated temperatures, making it ideal for power generation, petrochemical plants, refineries, steel mills, and industrial utility systems.
Designed and manufactured according to international standards, this valve delivers low operating torque, dependable sealing performance, and reduced maintenance requirements throughout its operational lifecycle.
Product Overview
| Item | تخصيص |
|---|---|
| اسم المنتج | Flanged Butterfly Valve |
| نوع الصمام | Metal Seated Butterfly Valve |
| مقاس | 32 Inch (DN800) |
| تصنيف الضغط | ASME Class 300 |
| Body Material | ASTM A216 WCB |
| Disc Material | Stainless Steel / WCB |
| Seat Type | Metal Seat |
| نهاية الاتصال | Flanged |
| معيار التصميم | أبي 609 |
| Pressure-Temperature Standard | أسم B16.34 |
| Face-to-Face | API 609 / ASME B16.10 |
| Flange Standard | ASME B16.5 |
| Inspection & Testing | أبي 598 |
| عملية | Gear Operated, Electric, Pneumatic |
| Leakage Class | Available up to ANSI/FCI 70-2 Class VI |
| Temperature Range | Up to 538°C (depending on trim selection) |
Product Features
Heavy-Duty ASTM A216 WCB Body
The valve body is manufactured from ASTM A216 WCB cast carbon steel, offering:
- Excellent mechanical strength
- High pressure resistance
- Good weldability
- Reliable performance in industrial environments
- Cost-effective lifecycle operation
WCB remains one of the most widely specified materials for industrial valve applications worldwide.
Metal Seat Construction
The metal seat design provides superior durability under severe service conditions.
Advantages include:
- High temperature capability
- Abrasion resistance
- Extended service life
- Reduced seat deformation
- Suitable for steam and particulate media
Metal seated valves are particularly recommended when elastomeric seats cannot withstand process temperatures.
Large Diameter DN800 Design
The 32-inch valve is engineered for large-scale industrial flow control applications.
Benefits include:
- High flow capacity
- Low pressure drop
- Efficient system operation
- Reduced pumping costs
Flanged End Connections
Flanged ends provide:
- Easy installation
- Simplified maintenance
- Secure sealing
- Compatibility with ASME piping systems
Why Choose a Metal Seated Butterfly Valve?
Traditional soft-seated butterfly valves may experience limitations in high-temperature or abrasive services.
A metal seated design offers:
| Feature | Metal Seat | Soft Seat |
|---|---|---|
| High Temperature Resistance | Excellent | Limited |
| Abrasion Resistance | Excellent | Moderate |
| Steam Service | Suitable | Not Recommended |
| Service Life | Long | Moderate |
| Maintenance Frequency | Low | Moderate |
| Industrial Reliability | High | واسطة |
For power plants, refineries, and heavy industry, metal seated butterfly valves are often the preferred solution.
المواصفات الفنية
Materials of Construction
| Component | مادة |
|---|---|
| جسم | ASTM A216 WCB |
| القرص | Stainless Steel / WCB |
| Seat Ring | Stainless Steel Alloy |
| ينبع | الفولاذ المقاوم للصدأ |
| Bearings | PTFE / Bronze |
| Fasteners | Alloy Steel |
Design Standards
| معيار | وصف |
|---|---|
| أبي 609 | Butterfly Valve Design |
| أسم B16.34 | Valve Design |
| ASME B16.5 | أبعاد شفة |
| أسم B16.10 | Face-to-Face |
| أبي 598 | Inspection & Testing |
| MSS SP-68 | Butterfly Valve Standard |
Working Principle
The valve utilizes quarter-turn operation to regulate or isolate flow.
Opening Cycle
- The actuator rotates the shaft.
- The disc moves away from the seat.
- Flow passage gradually opens.
- Full flow is achieved at 90° rotation.
Closing Cycle
- The disc rotates toward the seat.
- Final seating creates sealing contact.
- Flow is completely isolated.
The offset geometry reduces friction between sealing surfaces, minimizing wear and extending service life.
التطبيقات
Power Generation
Widely installed in:
- Main steam systems
- Auxiliary steam lines
- Cooling water systems
- Boiler facilities
Oil & Gas Industry
Suitable for:
- Refinery process units
- Pipeline systems
- Tank farms
- Utility services
Petrochemical Plants
Commonly used for:
- Process isolation
- Utility pipelines
- High-temperature applications
- Hydrocarbon processing
Steel Mills
Ideal for:
- Blast furnace systems
- Utility water systems
- Process gas networks
- High-temperature service
Cement Industry
Used in:
- Dust handling systems
- Kiln support systems
- Bulk material processing
Metal Seat Butterfly Valve vs Soft Seat Butterfly Valve
Selecting the correct seat design is critical for operational reliability.
| Feature | صمام الفراشة ذو المقعد المعدني | Soft Seat Butterfly Valve |
|---|---|---|
| Temperature Capability | Up to 538°C | Typically Below 200°C |
| Abrasive Media | Excellent | Limited |
| Steam Applications | Excellent | Poor |
| Durability | High | Moderate |
| Initial Cost | Higher | Lower |
| Long-Term Value | Excellent | Moderate |
For steam, hot oil, and abrasive service, metal seated valves provide significantly better performance.
Butterfly Valve vs Gate Valve
Many industrial facilities compare butterfly valves and gate valves when selecting isolation equipment.
| Feature | صمام فراشة | صمام البوابة |
|---|---|---|
| Weight | Lower | Higher |
| Installation Space | Compact | Larger |
| Operating Speed | Fast | Slower |
| Cost | Lower | Higher |
| Large Diameter Applications | Excellent | Moderate |
| Maintenance | Low | Moderate |
For large-diameter applications such as DN800 pipelines, butterfly valves are often preferred due to their lighter weight and compact design.
Quality Assurance
Every valve undergoes strict quality control procedures including:
Hydrostatic Shell Testing
Confirms body integrity under pressure.
Seat Leakage Testing
Verifies sealing performance.
Dimensional Inspection
Ensures compliance with international standards.
Material Verification
Confirms material chemistry and traceability.
Functional Operation Testing
Validates operating performance before shipment.
Available Options
Actuation Options
- Manual Gear Operator
- Electric Actuator
- Pneumatic Actuator
- Hydraulic Actuator
Material Options
- ASTM A216 WCB
- ASTM A217 WC6
- ASTM A217 WC9
- CF8 Stainless Steel
- CF8M الفولاذ المقاوم للصدأ
- Duplex Stainless Steel 2205
Seat Options
- Metal Seat
- Stellite Hardfacing
- Stainless Steel Seat
- High Temperature Alloy Seat
Frequently Asked Questions
What is the advantage of a metal seated butterfly valve?
Metal seated valves offer superior performance in high-temperature, steam, and abrasive service applications.
Why choose ASTM A216 WCB?
WCB provides excellent strength, durability, and cost-effective performance for industrial valve applications.
Is this valve suitable for steam service?
Yes. The metal seat design makes it suitable for high-temperature steam systems.
What industries commonly use 32-inch butterfly valves?
Power generation, petrochemical processing, oil & gas, steel manufacturing, and water treatment facilities.
Can the valve be automated?
Yes. Electric, pneumatic, hydraulic, and gear-operated configurations are available.
Request a Quote
China 32 Inch Class 300 Metal Seated Butterfly Valve Manufacturer
We provide:
✅ Factory Direct Pricing
✅ OEM & Custom Engineering Services
✅ API-Compliant Manufacturing
✅ Fast Production Lead Times
✅ Third-Party Inspection Support
✅ Worldwide Export Experience
Send Your RFQ Today
Please provide:
- Valve Size (DN800 / 32 Inch)
- Pressure Rating (Class 300)
- درجة حرارة التشغيل
- Media Type
- Quantity Required
- Actuation Requirements
Our engineering team will provide a detailed quotation, technical datasheet, GA drawing, and delivery schedule within 24 hours.
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