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

隔膜閥按結(jié)構(gòu)形式可分為：屋式、直流式、截止式、直通式、閘板式和直角式六種;連接形式通常為法蘭連接;按驅(qū)動(dòng)方式可分為手動(dòng)、電動(dòng)和氣動(dòng)三種，其中氣動(dòng)驅(qū)動(dòng)又分為常開式、常閉式和往復(fù)式三種。

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.

直角式隔膜閥：

Right angle diaphragm valve:

也稱突緣式，是*基本的一種常用代號為(G41)。其閥體是有襯里的。隔膜閥閥體襯里，就是為了更好的發(fā)揮它的耐腐蝕特性。這類結(jié)構(gòu)，除直通式外，還可以制成直角式的。

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.

屋脊式隔膜閥：

Ridge type diaphragm valve:

其結(jié)構(gòu)形狀與截止閥相似，這種形式的隔膜閥，流體阻力比直角式隔膜閥大，但密封面積大，密封性能好，可適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.

直通式隔膜閥：

Straight-through diaphragm valve:

其結(jié)構(gòu)形式與閘閥相似，閘板式隔膜閥流體阻力*小，適合于輸送粘性物料。隔膜材料常用天然橡膠、氯丁橡膠、丁基膠、丁晴橡膠、異丁橡膠、氟化橡膠和聚氟乙丙烯塑料(F46)等。隔膜閥的缺點(diǎn)是耐壓不高，一般在6kgf/cm2(0.6MPa)之內(nèi);耐溫性能也受隔膜的限制，一般只能耐60~80℃，≤(氟化橡膠)也不超過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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