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Q41H Forged Steel Flanged Ball Valve Overview
The Q41H Forged Steel Flanged Ball Valve is a specialized high-pressure and high-temperature ball valve featuring a forged valve body and flanged connections. The valve body is forged from materials such as A105, providing exceptional mechanical strength and pressure-bearing capacity. The valve employs a metal hard-seal structure, where a precisely machined ball is rotated 90 degrees by the stem to achieve opening and closing. This design maintains reliable sealing under conditions of high pressure differential and elevated temperatures. Compliant with industrial high-pressure standards, this valve is suitable for high-pressure pipeline systems in sectors such as petroleum, chemical, power generation, and natural gas. It serves as critical equipment for reliable shut-off in demanding operating conditions.

Q41H Forged Steel Flanged Ball Valve
Q41H Forged Steel Flanged Ball Valve Features
1. High-Pressure Performance of Forged Steel Body: Utilizes a forging process that results in a homogeneous, dense material structure free from casting defects, ensuring reliable performance under high pressure, high temperature, and frequent pressure surges.
2. Metal Hard Seal for Wear Resistance: Features hard alloy sealing surfaces on the ball and seat, offering excellent resistance to erosion, high temperatures, and abrasion for extended service life, even in media containing solid particles.
3. Safe and Reliable Flanged Connection: Employs standard flanged connections, providing robust structural integrity and superior sealing performance, making it ideal for installation in high-pressure pipeline systems.
4. Stable Operation and Easy Maintenance: Optimized fixed or floating ball design ensures low and stable operating torque. Certain models support in-line maintenance, allowing for relatively convenient replacement of sealing components.5. Fire-Safe Design: Typically compliant with fire safety standards such as API 607. In the event of soft seal failure, a secondary metal-to-metal seal maintains essential sealing performance

Q41H Forged Steel Flanged Ball Valve
Parts Name Material List
| 序 号NO. | 名称Name | 材料Material |
| 1 | 阀体body | 铸钢、碳钢cast steel, stainless steel |
| 2 | 球体ball | 铸钢、碳钢cast steel, stainless steel |
| 3 | 密封垫seal gasket | PTFE、对位聚苯Poly |
| 4 | 填料packing | PTFE、柔性石墨Flexible Graphite |
| 5 | 阀杆stem | 铸钢、碳钢cast steel, stainless steel |
| 性能规范表Performance Specification | ||
| 公称压力Nominal Pressure | 2.5/4 | Mpa |
| 强度试验压力Shell Test | 3.75/6 | |
| 密封试验压力Seal Test | 2.75/4.4 | |
| 适用温度Suitable Temp. | 350 | ℃ |
Dimensions Standard Requirements
1. The structural length of the valve shall conform to the standard GB/T12221.
2. The connecting flange shall conform to the standard GB9113.

Q41H Forged Steel Flanged Ball Valve View Drawing
Q41H Forged Steel Flanged Ball Valve Dimensions Table
| DN | mm | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 |
| NPS | in | 1/2 | 3/4 | 1 | 11/4 | 11/2 | 2 | 21/2 | 3 | 4 | 5 | 6 | 8 |
| 400LB法兰Flange | L | 165 | 190 | 216 | - | 241 | 292 | 330 | 356 | 406(432) | - | - | - |
| 6.4MPa法兰Flange | L | 165 | 190 | 216 | 229 | 241 | 292 | 330 | 356 | 432 | 508 | 559 | 660 |
| 10.0MPa法兰Flange | L | 165 | 190 | 216 | 229 | 241 | 292 | 330 | 356 | 432 | 508 | 559 | 660 |
| 对焊Butt Welding | L1 | 165 | 190 | 216 | - | 241 | 292 | 330 | 356 | 406(432) | - | - |

Model:
Q81FSpecification:
1/2”-4”Pressure:
1.6-6.4MpaMaterial:
stainless steel
Model:
Q11F-16T/Q11F-25T/Q11F-40TSpecification:
DN8-DN50Pressure:
PN16、PN25、PN40Material:
Brass
Model:
Q641F-16C/Q641F-25C/Q641F-40C/Q641F-16P/Q641F-25P/Q641F-40P/Specification:
DN20-DN200Pressure:
PN16,PN25,PN40Material:
Carbon steel,stainless steel,Bronze