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How to distinguish one-piece ball valve, two-piece ball valve, three-piece ball valve？
- 分类：NEWS CENTER
- 作者：Kelly Lee
- 来源：
- 发布时间：2020-05-29
- 访问量：0
【概要描述】How to distinguish one-piece ball valve, two-piece ball valve, three-piece ball valve
How to distinguish one-piece ball valve, two-piece ball valve, three-piece ball valve？
【概要描述】How to distinguish one-piece ball valve, two-piece ball valve, three-piece ball valve
- 分类：NEWS CENTER
- 作者：Kelly Lee
- 来源：
- 发布时间：2020-05-29
- 访问量：0
详情
Structurally:
The one-piece ball valve is an integrated ball valve, which is composed of a ball, a PTFE ring, and a lock nut. The diameter of the ball is slightly smaller than that of the pipe, similar to the Guangzhou type ball valve.
The two-piece ball valve is composed of two parts, and the sealing effect is better than that of the one-piece ball valve. The diameter of the ball and the pipe are the same, and it is easier to disassemble than the one-piece ball valve.
The three-piece ball valve is composed of three parts, the bonnet on both sides and the middle valve body. The three-piece ball valve is different from the two-piece ball valve and the one-piece ball valve in that it is convenient for disassembly and maintenance.
In terms of pressure: the three-piece pressure resistance is much higher than the one-piece and two-piece ball valves. The outer edge of the three-piece ball valve is mostly fixed by four bolts, which plays a good role in fastening. The pressure of the precision cast ball valve can reach 1000psi = 6.9MPa. For higher pressure, the forged valve body should be used.
Distinguish from the economic point of view: One-piece ball valve has the most favorable price because the main material is less than the other two types. The price of the two-piece ball valve is higher than that of the one-piece valve, and the three-piece valve is designed to withstand higher pressures. Therefore, the valve body is composed of three parts, and the material is higher than the other two types.
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