3/4″-2500LB Welded Bonnet Globe Valve

TECHNICAL DATA SHEET

Product Name: 3/4-inch 2500LB Welded Bonnet Globe Valve
Model/Specification: 3/4″-2500LB-WELDED-GLOBE
밸브 유형: Welded Bonnet Globe Valve (Forged)
Connection Type: Socket Weld (SW) / Butt Weld (BW) / Threaded (NPT) User specified

1. Basic Design Parameters

2. Technical Specifications

3. Material of Construction (Recommended – Carbon Steel A105)

*For Stainless Steel version (A182 F304/F316): body/bonnet to SS, disc/stem to SS.*

4. Main Dimensions & Connection Details

*Note: Dimensions for 3/4″ Class 2500 Welded Bonnet Globe Valve with Socket Weld Ends. Based on API 602 and industry standards .*

4.1 End-to-End Dimensions (Face-to-Face – Socket Weld)

Note: Welded bonnet version is slightly lighter than bolted bonnet (approx 0.2 kg less) .

4.2 End Preparation Details (Per ASME Standards)

4.3 Welded Bonnet Design Details

• Bonnet Attachment: Threaded-in to precise torque, then seal welded
• Weld Type: Full penetration strength weld
• Leakage Protection: Dual protection – threads + strength weld
• 틈 메우는 물건: None (eliminates gasket leak path)

5. Pressure-Temperature Rating (ASME B16.34 / Class 2500)

Material Group: Carbon Steel (ASTM A105)

*For Stainless Steel (F304/F316): similar ratings up to 550°C with derating .*

6. Test Pressure (API 598)

7. Flow Characteristics (3/4″ – Class 2500)

8. Welded Bonnet Advantages

9. Features & Applications

• Key Features:
• Welded Bonnet Construction: Threaded-in and strength-welded bonnet eliminates gasket and provides zero leakage at body-bonnet joint .
• High Pressure Capability (2500LB): Designed for extreme high-pressure applications up to 420 bar (6000 PSI) .
• Forged Body Construction: Close die forged steel provides superior strength, uniform grain flow, and absence of porosity .
• Integral Seat: Machined directly into body for maximum strength and reliability .
• API 602 Design: Meets stringent industry standards for forged steel valves .
• Excellent Throttling Control: Globe valve design provides precise flow regulation .
• Backseat Design: Protects stem packing when valve is fully open .
• OS&Y Design: Rising stem provides visual indication of valve position .
• High Temperature Capability: Suitable for temperatures up to 550°C with appropriate materials .
• Compact & Lightweight: Welded bonnet design reduces weight compared to bolted bonnet .
• Multiple End Options: Available in socket weld, butt weld, or threaded connections .
• Fugitive Emission Control: Welded bonnet eliminates potential leak path, ideal for critical service .
• Main Applications:
• High-Pressure Steam Systems: Power plants, boiler systems .
• Refineries & Petrochemical: Hydrocarbon processing, high-pressure fluid control .
• Oil & Gas Production: Wellhead control, high-pressure gathering systems .
• Chemical Processing: Corrosive fluid handling (with SS materials) .
• High-Temperature Applications: Up to 550°C with alloy materials .
• 중요 서비스: Where zero leakage and maximum reliability are required .
• Instrument Connections: Small bore high-pressure isolation .

10. Comparison: Welded Bonnet vs. Bolted Bonnet (3/4″ Class 2500)

11. Ordering Information

Please specify when ordering:

1. Valve size: 3/4″ (DN20)
2. Pressure class: 2500LB
3. Body material: A105 / F304 / F316 / F22
4. Bonnet type: Welded Bonnet
5. End connections: SW / BW / NPT
6. Seat type: Metal (standard)
7. Disc/seat hardfacing: Stellite (optional)
8. Operation: Handwheel / Gear / Actuator
9. Special requirements: NACE, oxygen cleaning, low temperature, etc.

*Disclaimer: The above data is prepared based on common industry standards (API 602, ASME B16.34, API 598) for welded bonnet globe valves . The welded bonnet design provides maximum integrity for high-pressure and critical service applications by eliminating the body-bonnet gasket. Specific dimensions, materials, and pressure ratings may vary by manufacturer. The final technical agreement and certified drawings shall prevail.*

보증:

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