對(duì)夾式蝶閥和法蘭式蝶閥連接方式不同

The connection methods of clamp butterfly valve and flange butterfly valve are different

對(duì)夾和法蘭是兩種不同的連接方式。

Clamp and flange are two different connection methods.

對(duì)夾式蝶閥：閥體上沒(méi)有帶法蘭，用雙頭螺栓將閥門(mén)連接在兩管道法蘭之間，就是兩片法蘭把蝶閥來(lái)夾在其中，然后用螺栓把兩片法蘭給固定住。

Clamp type butterfly valve: There is no flange on the valve body, and the valve is connected between two pipeline flanges with double headed bolts. This means that two flanges clamp the butterfly valve between them, and then the two flanges are fixed with bolts.

法蘭式蝶閥：閥體上帶有法蘭，用螺栓將閥門(mén)上兩端法蘭連接在管道法蘭上就可以了。

Flange butterfly valve: The valve body is equipped with a flange, and the flanges at both ends of the valve are connected to the pipeline flange with bolts.

對(duì)夾式蝶閥和法蘭式蝶閥結(jié)構(gòu)不同

The structure of clamp butterfly valve and flange butterfly valve is different

對(duì)夾式蝶閥配的螺栓比較長(zhǎng)，且本身沒(méi)有法蘭，所以一般不要安裝在管道末端和下游需要拆卸的位置，因?yàn)樵诓鹦断掠畏ㄌm時(shí)，對(duì)夾式的閥門(mén)會(huì)掉落，這樣閥門(mén)兩端的管道都不能正常工作了；而法蘭蝶閥沒(méi)有存在這樣的問(wèn)題，法蘭本體就有法蘭，與管道上的法蘭配對(duì)時(shí)，用螺栓連接，螺母鎖緊，所以當(dāng)一端被拆掉，也不會(huì)影響另外一端的運(yùn)行。

The bolts used for the clamp type butterfly valve are relatively long and do not have flanges, so it is generally not recommended to install them at the end of the pipeline or downstream where disassembly is required. This is because when disassembling the downstream flange, the clamp type valve will fall off, causing the pipelines at both ends of the valve to not function properly; However, flange butterfly valves do not have such problems. The flange body has a flange, and when paired with the flange on the pipeline, it is connected with bolts and locked with nuts. Therefore, when one end is removed, it will not affect the operation of the other end.

對(duì)夾式蝶閥和法蘭式蝶閥造價(jià)不同

The cost of clamp butterfly valve and flange butterfly valve is different

對(duì)夾式蝶閥的螺栓長(zhǎng)度較長(zhǎng)。對(duì)施工精度要求較高，如果出現(xiàn)兩面的法蘭不對(duì)中，螺栓就會(huì)受到比較大的剪切力，導(dǎo)致閥門(mén)容易泄漏；相比之下，對(duì)夾式蝶閥拆卸會(huì)更方便一些，閥門(mén)造價(jià)較低，但有缺點(diǎn)是，如果一個(gè)密封面出問(wèn)題，那么兩個(gè)密封面都得拆開(kāi)。

The bolt length of the clamp type butterfly valve is longer. High precision is required for construction. If the flanges on both sides are misaligned, the bolts will be subjected to significant shear force, leading to valve leakage; In contrast, the disassembly of clamp type butterfly valves is more convenient and the cost of the valve is lower. However, the disadvantage is that if one sealing surface has problems, both sealing surfaces need to be disassembled.

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