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a—球楔桿肩密封結構Ball wedge shoulder pole leak proof structure

b—槽墊自密封結構Slot pad leak proof structure

c—榫槽防火密封結構 Mortise fireproofing leak proof structure

d—三角填料密封結構Triangle padding leak proof structure

e-1—環連接結構設計 Loop connection structure design

e-2—槽墊密封結構設計 Slot pad leak proof structure design

圖1所示的對夾式高壓球閥的結構簡圖及采用的設計結構，本產品設計具有如下特點：

Chart 1 shows the structure diagram and the adopted design structure of the double-clip type high pressure ball valve. The design of this product has the following features:

1.      閥桿密封采用自主專利技術的(a) 球楔桿肩密封結構、(d)槽墊自密封結構和O型圈密封結構，使其在高壓工況下不泄漏；

1. Valve rod seal adopts the independent patented technologies of (a) ball wedge shoulder pole leak proof structure, (b) slot pad leak proof structure and O-shape circle leak proof structure, which makes it not leak under high pressure.

2.      體蓋連接亦采用自主專利技術的(b)槽墊自密封結構，即壓力越高，密封性能越好；同時采用(c)榫槽防火密封結構，有效的保證了其在各種工況下的密封性能，介質不外漏；

2. The body cover also adopts independent patented technologies of (b) slot pad leak proof structure, which means if there is higher pressure, there is better sealing property; and (c) mortise fireproofing leak proof structure, which effectively guarantees its sealing property and allows no medium to leak.

3.      邊法蘭采用傳統的(e-1)環連接結構或(e-2) 槽墊自密封結構（與平面法蘭對接），實現與外法蘭的無縫連接；

3. Side flange adopts traditional (e-1) loop connection structure design or (e-2) slot pad leak proof structure (butt joint with face flange), which realizes seamless connection with outer flange.

4.      對夾式結構設計球閥與法蘭連接高壓球（如圖2所示）閥相比，具有明顯的優勢：     

4. Compared with high pressure ball valves connected by flanges, double-clip type ball valve has its own obvious advantages:

圖2  常用法蘭連接高壓球閥

Common high pressure ball valves connected by flanges

Ø       結構緊湊，安裝維修方便；Compact structure , easy installation and maintenance

Ø       減少外漏點，保證密封性能；Reducing leaking sources, ensuring sealing property

Ø       減輕重量，降低成本。Reducing weight, lowering cost

以DN50、PN420高壓球閥為例，對夾式結構

相對于法蘭連接式結構，其重量減少50%，

兩者等比例模型如下圖所示。

Set high pressure ball valves DN50 and PN420 as examples, double-clip is 50% lighter compared with flange-connected structure. The following is the models of the two with equal proportion.