不锈钢蝶阀的型号通常由以下几部分组成：

　　The model of stainless steel butterfly valve usually consists of the following parts:

　　D ：代表阀门类型，即蝶阀。

　　D ： Representing valve type, namely butterfly valve.

　　驱动装置 ：如手柄操作、蜗轮驱动、气动、电动等。

　　Drive devices: such as handle operation, worm gear drive, pneumatic, electric, etc.

　　连接方式 ：如法兰连接。

　　Connection method: such as flange connection.

　　结构形式 ：如中心密封、单偏心、双偏心、三偏心等。

　　Structural forms: such as center seal, single eccentricity, double eccentricity, triple eccentricity, etc.

　　阀座堆焊 ：如不锈钢。

　　Valve seat welding: such as stainless steel.

　　公称压力 ：如1.6MPa。

　　Nominal pressure: such as 1.6MPa.

　　阀体材料 ：如不锈钢CF8。

　　Valve body material: such as stainless steel CF8.

　　以下是一些常用的不锈钢蝶阀型号示例：

　　Here are some common examples of stainless steel butterfly valve models:

　　软密封不锈钢法兰蝶阀：

　　Soft sealed stainless steel flange butterfly valve:

　　D41X-16P（手柄操作）

　　D41X-16P (handle operated)

　　D341X-16P（蜗轮驱动）

　　D341X-16P (worm gear drive)

　　D641X-16P（气动）

　　D641X-16P (Pneumatic)

　　D941X-16P（电动）

　　D941X-16P (electric)

　　硬密封不锈钢法兰蝶阀：

　　Hard sealed stainless steel flange butterfly valve:

　　D343W-16P（蜗轮）

　　D343W-16P (worm gear)

　　D643W-16P（气动）

　　D643W-16P (Pneumatic)

　　D943W-16P（电动）

　　D943W-16P (electric)

　　这些型号中的字母和数字分别代表不同的参数和特性，如D代表蝶阀类型，3代表蜗轮驱动，4代表法兰连接，W代表阀座堆焊不锈钢，-16P代表公称压力为1.6MPa，P代表阀体材料为不锈钢CF8。

　　The letters and numbers in these models represent different parameters and characteristics, such as D for butterfly valve type, 3 for worm gear drive, 4 for flange connection, W for seat overlay stainless steel- 16P represents a nominal pressure of 1.6MPa, and P represents a valve body material of stainless steel CF8.

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