球閥在工業(yè)閥門中的地位，就像智能手機(jī)在通訊設(shè)備中的地位——不是非常早發(fā)明的，卻是應(yīng)用非常廣的。良工閥門集團(tuán)的球閥產(chǎn)品以“流體阻力小、結(jié)構(gòu)簡(jiǎn)單、開(kāi)閉迅速”三大優(yōu)勢(shì)，成為石油、化工、天然氣等行業(yè)管道系統(tǒng)的優(yōu)選。

The position of ball valves in industrial valves is like that of smartphones in communication devices - not the earliest invention, but the most widely used. Lianggong Valve Group's ball valve products have become the preferred choice for pipeline systems in industries such as petroleum, chemical, and natural gas due to their three major advantages of low fluid resistance, simple structure, and fast opening and closing.

一、球閥的工作原理與結(jié)構(gòu)特點(diǎn)

1、 The working principle and structural characteristics of ball valves

球閥的啟閉件是一個(gè)帶孔的球體，通過(guò)閥桿帶動(dòng)球體旋轉(zhuǎn)90°，即可實(shí)現(xiàn)從全開(kāi)到全關(guān)的切換。這種“四分之一轉(zhuǎn)”的操作方式，讓球閥成為所有閥門中操作非常便捷的品種。

The opening and closing component of a ball valve is a ball with holes, which can be switched from fully open to fully closed by driving the ball to rotate 90 degrees through the valve stem. This "quarter turn" operation method makes ball valves the most convenient type of valve to operate among all valves.

良工球閥的核心優(yōu)勢(shì)體現(xiàn)在三個(gè)方面：

The core advantages of Lianggong ball valves are reflected in three aspects:

流體阻力小——球閥全開(kāi)時(shí)，球體通道與管道內(nèi)徑基本一致，流體幾乎不受阻礙。

Low fluid resistance - When the ball valve is fully opened, the diameter of the ball passage is basically the same as that of the pipeline, and the fluid is almost unobstructed.

密封可靠——球閥的密封面材料廣泛使用聚四氟乙烯等塑料，密封性好。

Reliable sealing - The sealing surface material of ball valves widely uses plastics such as polytetrafluoroethylene, which has good sealing performance.

維修方便——球閥結(jié)構(gòu)簡(jiǎn)單，密封圈一般是活動(dòng)的，拆卸更換都比較方便。

Easy maintenance - Ball valves have a simple structure, and the sealing ring is generally movable, making disassembly and replacement relatively convenient.

二、良工球閥的主流產(chǎn)品系列

2、 The mainstream product series of Lianggong ball valves

Q41F-16C系列法蘭浮動(dòng)球閥——這是良工球閥的“當(dāng)家花旦”。浮動(dòng)球閥的球體在介質(zhì)壓力作用下被壓向出口端密封圈，壓力越高密封越緊。DN100規(guī)格的工作壓力為1.6MPa，閥體材質(zhì)為碳鋼。

Q41F-16C series flange floating ball valve - this is the "leading actress" of Lianggong ball valves. The ball of the floating ball valve is pressed towards the sealing ring at the outlet end under the pressure of the medium, and the higher the pressure, the tighter the seal. The working pressure of DN100 specification is 1.6MPa, and the valve body material is carbon steel.

固定式球閥——適用于大口徑、高壓力的工況，球體由上下閥桿固定，不會(huì)因介質(zhì)壓力而位移。

Fixed ball valve - suitable for large-diameter and high-pressure working conditions, the ball is fixed by upper and lower valve stems and will not shift due to medium pressure.

埋地式全焊接球閥——專為城市供熱、燃?xì)夤艿涝O(shè)計(jì)，全焊接結(jié)構(gòu)杜絕了泄漏隱患。

Underground fully welded ball valve - specially designed for urban heating and gas pipelines, with a fully welded structure to eliminate leakage hazards.

不銹鋼球閥——可控制空氣、水、蒸汽、各種腐蝕性介質(zhì)、泥漿、油品、液態(tài)金屬和放射性介質(zhì)等多種流體。

Stainless steel ball valve - can control various fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media.

三、球閥選型的核心技術(shù)參數(shù)

3、 Core technical parameters for ball valve selection

選型球閥需核心考慮：

The selection of ball valves should focus on:

閥體材質(zhì)——碳鋼適用于常規(guī)工況，不銹鋼適用于腐蝕性介質(zhì)。

Valve body material - carbon steel is suitable for conventional working conditions, while stainless steel is suitable for corrosive media.

工作壓力——良工球閥壓力覆蓋1.6~6.4MPa。

Work pressure - Lianggong ball valve pressure covers 1.6~6.4MPa.

連接方式——法蘭連接、焊接連接、螺紋連接等。

Connection methods - flange connection, welding connection, threaded connection, etc.

驅(qū)動(dòng)方式——手動(dòng)、電動(dòng)、氣動(dòng)、齒輪傳動(dòng)等。

Drive modes - manual, electric, pneumatic, gear transmission, etc.

四、球閥的典型應(yīng)用場(chǎng)景

4、 Typical application scenarios of ball valves

良工球閥廣泛應(yīng)用于煤礦、石油、化工、冶金、輕工、造紙、電站、制冷、電廠等領(lǐng)域。在熱力系統(tǒng)中，全焊接球閥憑借零泄漏的優(yōu)勢(shì)成為供熱管網(wǎng)的優(yōu)選。在長(zhǎng)輸管線中，固定式球閥憑借高可靠性和低維護(hù)成本受到青睞。

Lianggong ball valves are widely used in coal mines, petroleum, chemical, metallurgical, light industry, papermaking, power plants, refrigeration, power plants and other fields. In thermal systems, fully welded ball valves have become the preferred choice for heating pipelines due to their zero leakage advantage. Fixed ball valves are favored in long-distance pipelines due to their high reliability and low maintenance costs.

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