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(jié)構(gòu)上一般分為整體式，兩段式和三段式，各個(gè)結(jié)構(gòu)布置合理，造型美觀，符合大多數(shù)消費(fèi)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(duì)焊和承插焊方式，并且?guī)в袠?biāo)準(zhǔn)的支架平臺(tái)和鎖定裝置，驅(qū)動(dòng)方式可分為手動(dòng)，電動(dòng)和氣動(dòng)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(lái)用了彈性密封結(jié)構(gòu)，啟動(dòng)與關(guān)閉輕松自如，閥桿部分應(yīng)用的是倒密封的下裝式結(jié)構(gòu)，這樣就避免了閥腔內(nèi)異常時(shí)閥桿被沖出。這樣的設(shè)計(jì)結(jié)構(gòu)下，螺紋球閥內(nèi)的流體阻力變小，即便介質(zhì)通過(guò)也不會(huì)引起閥門(mén)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(kāi)到全閉只需要旋轉(zhuǎn)半周即可，簡(jiǎn)單操作還便于遠(yuǎn)距離的控制，活動(dòng)的密封圈便于拆卸與安裝，讓維修與維護(hù)變得更方便和快捷。由于它結(jié)構(gòu)簡(jiǎn)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(jù)實(shí)驗(yàn)數(shù)據(jù)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(huán)境下更好的的截?cái)嗪徒油ü艿乐械慕橘|(zhì)，而且介質(zhì)不單單包括水，燃?xì)猓羝€包括油品，硝酸和醋酸等化學(xué)物質(zhì)。

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(guò)程中是需要維護(hù)保養(yǎng)的，而且這個(gè)保養(yǎng)是日常工作，每天都要做的。只有維護(hù)保養(yǎng)好了才能夠延長(zhǎng)法蘭球閥的使用壽命，讓它充分發(fā)揮優(yōu)勢(shì)為我們服務(wù)。那么，法蘭球閥要如何維護(hù)保養(yǎng)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(mén)開(kāi)關(guān)指示牌和閥門(mén)編號(hào)牌，確保標(biāo)識(shí)清晰。如果標(biāo)識(shí)有受損或者脫落的，要及時(shí)補(bǔ)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(dòng)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(guān)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(jié)、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(xì)檢查設(shè)備各方面的情況，這樣能夠及時(shí)排除故障，避免因故障而帶來(lái)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(jiàn)的問(wèn)題，當(dāng)法蘭球閥出現(xiàn)故障，那么要緊急進(jìn)行處理，但是注意要找維修人員來(lái)處理。一般如果是從大廠家購(gòu)買(mǎi)的法蘭球閥，那么廠家是可以提供售后服務(wù)的，所以有問(wèn)題的話，聯(lián)系廠家這樣就能夠你的煩惱了。

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.