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Q41F Flange Ball Valve Overview
Q41F flange ball valve is a universal shut-off valve connected by flanges, which uses a ball to rotate 90 degrees to achieve rapid opening and closing. The valve body is usually made of cast steel, stainless steel or brass, with a full bore or reduced diameter design to ensure low fluid resistance. Its sealing pair often uses soft materials such as polytetrafluoroethylene (PTFE) to form a tight fit with the sphere, achieving reliable sealing. This valve has a wide working pressure range and is suitable for water, steam, oil, gas, and general corrosive media. It is widely used in industrial pipelines such as petroleum, chemical, power, water supply and drainage, and heating as a control device for fluid connection or disconnection.

Q41F Flange Ball Valve Product Image
Q41F Flange Ball Valve Features
1. Stable flange connection: Using standard flange connection, easy docking, diverse sealing surface types (such as protruding and flat), good connection rigidity, suitable for various medium and high pressure pipeline systems.
2. Excellent sealing performance: The valve seat is made of elastic materials such as PTFE, with a low friction coefficient and self-lubricating properties, which can achieve long-term bidirectional sealing and basically achieve zero leakage.
3. Lightweight and flexible operation: The ball has low resistance to rotation, the handle or actuator has low operating torque, and can be quickly opened and closed at 90 degrees, making it easy to achieve automated control or remote operation.
4. Fire prevention and safety design: Some models comply with fire prevention standards, and emergency sealing can be achieved through metal sealing pairs after the soft seal fails; The valve stem adopts an anti blowout structure with high safety.
5. Easy maintenance and strong universality: The structure is relatively simple, and the valve seat seal can be replaced online or offline in case of leakage. Wide range of applicable media and high comprehensive cost-effectiveness.

Q41F Flange Ball Valve Structure Diagram
Parts Name Material List
| 序 号NO. | 名称Name | 材料Material |
| 1 | 阀体Body | 碳钢、不锈钢carbon steel、stainless steel |
| 2 | 球体Ball | 不锈钢stainless steel |
| 3 | 密封圈sealing ring | PTFE、RPP |
| 4 | 填料packing | PTFE |
| 5 | 阀杆Stem | 不锈钢stainless steel |
| 性能规范表Performance Specification | ||
| 公称压力Nominal Pressure | 1.6/2.5/4/6.4 | MPa |
| 强度试验压力Shell Test | 2.4/3.75/6/9.6 | |
| 密封试验压力Seal Test | 1.76/2.75/4.4/7.04 | |
| 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 GB/T 9113.

Q41F Flange Ball Valve View Drawing
Q41F Flange Ball Valve Dimensions Table
| 公称通径DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 |
| L | 130 | 140 | 150 | 165 | 180 | 200 | 220 | 250 | 280 | 320 | 360 | 400 |
| H | 59 | 63 | 75 | 85 | 95 | 107 | 142 | 152 | 178 | 252 | 272 | 342 |

Model:
Q21F-16PSpecification:
DN15-DN50Pressure:
1.6MpaMaterial:
stainless steel
Model:
ZQ41H-16C/ZQ41H-25C/ZQ41H-40C/ZQ41H-64C/ZQ41Y-16P/ZQ41Y-25P/ZQ41Y-40P/ZQ41Y-64PSpecification:
DN15~300Pressure:
PN1.6~6.4MPaMaterial:
Carbon steel, stainless steel
Model:
Q21Y -16C/Q21Y -25C/Q21Y -40C/Q21Y -64C/Q21Y -16P/Q21Y -25P/Q21Y -40P/Q21Y -64PSpecification:
DN10-DN25Pressure:
PN16,PN25,PN40,PN64Material:
stainless steel,carbon steel,forged stainless steel