What are the structural classifications of diaphragm valves? Diaphragm valves can be divided into six types according to their structural forms: house type, direct flow type, globe type, straight through type, gate type, and right angle type; The connection form is usually flange connection; According to the driving method, it can be divided into three types: manual, electric, and pneumatic. Among them, what are the structural classifications of pneumatic driving and diaphragm valves

隔膜阀按结构形式可分为：屋式、直流式、截止式、直通式、闸板式和直角式六种;连接形式通常为法兰连接;按驱动方式可分为手动、电动和气动三种，其中气动驱动又分为常开式、常闭式和往复式三种。

Diaphragm valves can be divided into six types according to their structural forms: roof type, direct flow type, globe type, straight through type, gate type, and right angle type; The connection form is usually flange connection; According to the driving method, it can be divided into three types: manual, electric, and pneumatic, among which pneumatic driving is further divided into three types: normally open, normally closed, and reciprocating.

直角式隔膜阀：

Right angle diaphragm valve:

也称突缘式，是*基本的一种常用代号为(G41)。其阀体是有衬里的。隔膜阀阀体衬里，就是为了更好的发挥它的耐腐蚀特性。这类结构，除直通式外，还可以制成直角式的。

Also known as flange type, it is a commonly used code name for * (G41). The valve body is lined. The lining of the diaphragm valve body is to better utilize its corrosion resistance characteristics. This type of structure can be made into a right angle type in addition to a straight through type.

屋脊式隔膜阀：

Ridge type diaphragm valve:

其结构形状与截止阀相似，这种形式的隔膜阀，流体阻力比直角式隔膜阀大，但密封面积大，密封性能好，可适用于真空度高的管道。

Its structural shape is similar to that of a globe valve. This type of diaphragm valve has a greater fluid resistance than a right angle diaphragm valve, but has a larger sealing area and good sealing performance, making it suitable for pipelines with high vacuum.

直通式隔膜阀：

Straight-through diaphragm valve:

其结构形式与闸阀相似，闸板式隔膜阀流体阻力*小，适合于输送粘性物料。隔膜材料常用天然橡胶、氯丁橡胶、丁基胶、丁晴橡胶、异丁橡胶、氟化橡胶和聚氟乙丙烯塑料(F46)等。隔膜阀的缺点是耐压不高，一般在6kgf/cm2(0.6MPa)之内;耐温性能也受隔膜的限制，一般只能耐60~80℃，≤(氟化橡胶)也不超过180℃。

Its structural form is similar to that of a gate valve, and the gate type diaphragm valve has a small fluid resistance, making it suitable for conveying viscous materials. Diaphragm materials commonly include natural rubber, chloroprene rubber, butyl rubber, nitrile rubber, isobutylene rubber, fluorinated rubber, and polyfluoroethylene propylene plastic (F46). The disadvantage of diaphragm valves is that their pressure resistance is not high, usually within 6kgf/cm2 (0.6MPa); The temperature resistance performance is also limited by the diaphragm, generally only able to withstand 60~80 ℃, and ≤ (fluorinated rubber) does not exceed 180 ℃.

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