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Q41H Forged Steel Flanged Ball Valve

  • Model:Q41H-25C/Q41H-40C/Q41H-25P/Q41H-40P
  • Specification:DN15-DN200
  • Temperature:≤350℃
  • Medium:water, gas, oil
  • Pressure:2.5-4.0Mpa
  • Connection method:flange
  • Driving method:Manual, pneumatic, electric,Gear
  • Material:forged steel, forged stainless steel
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  • Product Overview
  • Performance Data
  • Size Weight

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 gasketPTFE、对位聚苯Poly
4填料packingPTFE、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 Pressure2.5/4Mpa
强度试验压力Shell Test3.75/6
密封试验压力Seal Test2.75/4.4
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

DNmm1520253240506580100125150200
NPSin1/23/4111/411/2221/234568
400LB法兰FlangeL165190216-241292330356406(432)---
6.4MPa法兰FlangeL165190216229241292330356432508559660
10.0MPa法兰FlangeL165190216229241292330356432508559660
对焊Butt WeldingL1165190216-241292330356406(432)--


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