As a new type of ball valve device widely used in recent years, threaded ball valve is widely loved and concerned by consumers. The origin of the name of threaded ball valve is mainly attributed to the threaded connection mode when it is connected with the pipeline. In terms of specific materials, it is also divided into carbon steel, stainless steel, low-temperature steel and ball milled cast iron. Then, compared with other ball valves, what are the characteristics of threaded ball valves?

1、螺紋球閥在結構上一般分為整體式，兩段式和三段式，各個結構布置合理，造型美觀，符合大多數消費者的審美觀，其中兩片式，三片式螺紋球閥連接方式還有采用了對焊和承插焊方式，并且帶有標準的支架平臺和鎖定裝置，驅動方式可分為手動，電動和氣動三種不同模式。

1. Threaded ball valves are generally divided into integral type, two-stage type and three-stage type in structure. Each structure is reasonably arranged and has a beautiful appearance, which is in line with the aesthetics of most consumers. Among them, two-piece and three-piece threaded ball valves are connected by butt welding and socket welding, and are equipped with international standard support platform and locking device. The driving mode can be divided into three different modes: manual, electric and pneumatic.

2、閥座都是來用了彈性密封結構，啟動與關閉輕松自如，閥桿部分應用的是倒密封的下裝式結構，這樣就避免了閥腔內異常時閥桿被沖出。這樣的設計結構下，螺紋球閥內的流體阻力變小，即便介質通過也不會引起閥門密封的侵蝕。

2. The elastic sealing structure is used for the valve seat, which makes it easy to start and close. The valve rod part adopts the bottom mounted structure of inverted sealing, so as to avoid the valve rod being rushed out when the valve cavity is abnormal. Under such a design structure, the fluid resistance in the threaded ball valve becomes smaller, and even if the medium passes through, it will not cause the erosion of the valve seal.

3、從全開到全閉只需要旋轉半周即可，簡單操作還便于遠距離的控制，活動的密封圈便于拆卸與安裝，讓維修與維護變得更方便和快捷。由于它結構簡單，重量輕，更能減輕管道的承壓。

3. From fully open to fully closed, it only needs to rotate for half a cycle. The simple operation is also convenient for remote control. The movable sealing ring is convenient for disassembly and installation, making repair and maintenance more convenient and fast. Because of its simple structure and light weight, it can reduce the pressure of the pipeline.

據實驗數據研究證明，螺紋球閥可用在1-4mpa以及工作溫度在-29~180攝氏度的環境下更好的的截斷和接通管道中的介質，而且介質不單單包括水，燃氣，蒸汽還包括油品，硝酸和醋酸等化學物質。

According to the experimental data research, the threaded ball valve can better cut off and connect the medium in the pipeline under the environment of 1-4mpa and working temperature of - 29 ~ 180 ℃, and the medium includes not only water, gas and steam, but also chemical substances such as oil, nitric acid and acetic acid.

法蘭球閥在使用過程中是需要維護保養的，而且這個保養是日常工作，每天都要做的。只有維護保養好了才能夠延長法蘭球閥的使用壽命，讓它充分發揮優勢為我們服務。那么，法蘭球閥要如何維護保養呢?

Flange ball valve needs maintenance in the process of use, and this maintenance is a daily work and should be done every day. Only after maintenance can we prolong the service life of flange ball valve and make it give full play to its advantages to serve us. So, how to maintain the flange ball valve?

1、一定要檢查清楚閥門開關指示牌和閥門編號牌，確保標識清晰。如果標識有受損或者脫落的，要及時補貼上去。

1. Be sure to check the valve switch indicator and valve number plate to ensure that the identification is clear. If the logo is damaged or falls off, it shall be subsidized in time.

2、要檢查法蘭球閥各支架和連接處的螺栓，看看各部位是否連接良好，如果有松動的情況，要重新緊固好。

2. Check the bolts at the supports and connections of the flange ball valve to see whether all parts are well connected. If there is looseness, retighten it.

3、檢查法蘭球閥關鍵部位的狀況，包括填料壓蓋、加油孔、加油孔螺帽、絲堵、伸縮節、閥蓋與閥體連接等各部位，看看這些零部件是否有異常情況。確保所有零部件都能夠正常工作。

3. Check the condition of key parts of flange ball valve, including packing gland, oil filling hole, oil filling hole nut, screw plug, expansion joint, connection between valve cover and valve body, and see whether these parts are abnormal. Ensure that all parts are working properly.

4、除了以上這些日常檢查工作之外，每年還要做一次大檢修。詳細檢查設備各方面的情況，這樣能夠及時排除故障，避免因故障而帶來大的損失。

4. In addition to the above routine inspection, a major overhaul shall be carried out every year. Check all aspects of the equipment in detail, so as to eliminate the fault in time and avoid large losses caused by the fault.

像法蘭球閥泄漏就是常見的問題，當法蘭球閥出現故障，那么要緊急進行處理，但是注意要找維修人員來處理。一般如果是從大廠家購買的法蘭球閥，那么廠家是可以提供售后服務的，所以有問題的話，聯系廠家這樣就能夠解決你的煩惱了。

For example, the leakage of flange ball valve is a common problem. When the flange ball valve fails, it should be handled urgently, but pay attention to find maintenance personnel to deal with it. Generally, if the flange ball valve is purchased from a large manufacturer, the manufacturer can provide after-sales service, so if there is a problem, contact the manufacturer, so you can solve your trouble.