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Q61Y Forged Steel Three-Piece Ball Valve Overview
The Q61Y Forged Steel Three-Piece Ball Valve is a high-performance hard-seal ball valve featuring a forged steel body and a three-piece bolted construction. The valve body is forged from high-strength materials such as A105 steel in three sections, which are securely assembled using alloy steel bolts. The sealing surfaces of the ball and seats employ hard-metal overlay welding, forming a durable metal-to-metal seal. The valve achieves reliable 90-degree opening and closing through the rotation of the stem, which drives a fixed ball design.This valve is specifically engineered for demanding applications involving high pressure, high temperatures, and abrasive or corrosive media. It combines the high pressure-bearing capability of forged steel, the easy maintenance enabled by the three-piece structure, and the durability of hard-sealed surfaces. It is widely used in critical high-pressure, small-bore pipelines across industries such as petrochemicals, natural gas, power generation, and other vital industrial facilities.

Q61Y Forged Steel Three-Piece Ball Valve
Q61Y Forged Steel Three-Piece Ball Valve Features
1. Forged Steel Three-Piece High-Pressure Construction:
The valve body is manufactured through segmented forging, ensuring uniform material properties and high strength. Its three-piece bolted design allows internal maintenance and seal replacement of the center section without disassembling the pipeline.
2. Metal Hard Seal for Demanding Service Conditions:
The ball and seats feature hard alloy sealing surfaces, providing high temperature resistance, wear resistance, and erosion resistance. This makes the valve suitable for steam, particulate-laden media, and frequently operated harsh environments.
3. Fire Safety and Reliable Sealing:
Compliant with fire safety standards such as API 607, the valve maintains basic sealing through its metal sealing pair even if the soft secondary seals fail. It typically offers reliable bidirectional sealing capability.
4. Stable Operation and Low Maintenance Costs:
The fixed ball design ensures low and stable operating torque. The modular three-piece construction greatly simplifies maintenance procedures, significantly reducing downtime and lifecycle maintenance costs.
5. Long Service Life and High Reliability:
The forged steel material offers strong corrosion resistance, while the hard sealing surfaces exhibit low wear rates, ensuring an extended design life. Ideal for critical high-pressure and high-temperature processes, the valve provides highly reliable shutoff performance.

Q61Y Forged Steel Three-Piece Ball Valve Structure Diagram
Parts Name Material List
| 序 号NO. | 名称Name | 材料Material |
| 1 | 阀体body | 碳钢carbon steel |
| 2 | 球体ball | 不锈钢stainless steel |
| 3 | 密封垫seal gasket | PTFE |
| 4 | 填料packing | PTFE |
| 5 | 阀杆stem | 1CR13 |
| 性能规范表Performance Specification | ||
| 公称压力Nominal Pressure | 16/32 | Mpa |
| 强度试验压力Shell Test | 24/48 | |
| 密封试验压力Seal Test | 17.6/35.2 | |
| 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.

Q61Y Forged Steel Three-Piece Ball Valve View Drawing
Q61Y Forged Steel Three-Piece Ball Valve Dimensions Table
| DN | 10 | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 |
| A(法兰) | 210 | 230 | 240 | 260 | 300 | 400 | 400 | 490 | 580 | 620 |
| L(对焊) | 150 | 170 | 190 | 205 | 230 | 260 | 330 | 360 | 380 | 430 |

Model:
Q41F-16P/Q41F-25P/Q41F-16R/Q41F-25RSpecification:
DN15-DN250Pressure:
1.6Mpa-6.4MpaMaterial:
stainless steel、cast steel, Bronze
Model:
ZSQ44F-16C/ZSQ44F-25C/ZSQ44F-40C/ZSQ44H-16P/ZSQ44H-25P/ZSQ44H-40P/ZSQ44H-64PSpecification:
DN15~200Pressure:
PN1.6~6.4MPaMaterial:
Carbon steel, stainless steel
Model:
Q41Y-16/Q41Y-40/Q41Y-64/Q41Y-100Specification:
DN15-DN200Pressure:
PN16,PN40,PN100,PN64Material:
forged steel, forged stainless steel