男人插女人骚视频,波多野结衣人妻厨房大战,亚洲国产精品成人精品无码区,亚洲 欧美 国产 综合首页

德國洛克進口氧氣截止閥使用壽命

進口氧氣截止閥結構特點:

氧氣截止閥是氧氣管網專用閥門的一種.它除了具有普通截止閥功能外還具有阻燃性好,導電性能好,傳熱快,結構緊湊,防油,安全可靠等特點：

結構比閘閥簡單，制造與維修都較方便。

(2)密封面不易磨損及擦傷，密封性好，啟閉時閥瓣與閥體密封面之間無相對滑動，因而磨損與擦傷均不嚴重，密封性能好，使用壽命長。

啟閉時，閥瓣行程小，因而截止閥高度比閘閥小，但結構長度比閥長。

(4)啟閉力矩大、啟閉較費力，啟閉時間校長。

(5)流體阻力大，因閥體內介質通道較曲折，流體阻力大，動力消耗大。

(6)介質流動方向 公稱壓力PN≤16MPa時，一般采用順流，介質從閥瓣下方向*；公稱壓力PN≥20MPa時，一般采用逆流，介質從閥瓣上方向下流．以增加密封件能。使用時，截止閥介質只能單方向流動，不能改變流動方向。

進口氧氣截止閥規格參數：

1、口徑范圍:DN15～DN500

2、壓力范圍:PN16-PN40

3、溫度范圍:－20℃～150℃

4、傳動方式:手動、電動

5、閥體材質:銅、不銹鋼

6、連接方式:法蘭

7、適用范圍：氧氣

進口氧氣截止閥工作原理:

因為氧氣屬易燃易爆危險品，所以必需防泄漏，防靜電，防火花，以避免發生事故。在結構上，設計為：閥瓣啟閉時閥桿只升降而不轉動，有效地降低了密封副磨損、填料磨損和上密封磨損；側法蘭上裝有接地螺釘，避免產生靜電火花；閥桿外露部分用有機玻璃密閉封蓋，用以防塵防油。德國進口氧氣截止閥采用材質優良的硅黃銅或不銹鋼鑄造而成，具有機械強度高，耐磨損、安全性好等優點。使用在氧氣管路上，具有的防爆阻燃性能，消除了氧氣管路上的不安全因素。

Working principle of imported oxygen stop valve:
Because oxygen is flammable and explosive dangerous goods, it is necessary to prevent leakage, anti-static, fire flowers, in order to avoid accidents. In structure, the design is as follows: when the valve disc is opened and closed, the valve stem only rises and falls but does not rotate, effectively reducing the wear of sealing pair, packing and upper seal; the side flange is equipped with grounding screw to avoid electrostatic sparks; the exposed part of the valve stem is sealed with plexiglass to prevent dust and oil. The oxygen stop valve imported from Germany is made of silicon brass or stainless steel with excellent material. It has the advantages of high mechanical strength, wear resistance and good safety. When used in oxygen pipeline, it has good explosion-proof and flame retardant performance, eliminating the unsafe factors on oxygen pipeline.

進口氧氣截止閥產品簡介:

德國洛克《DE LOCKE》進口氧氣截止閥屬于強制密封式閥門，所以在閥門關閉時，必須向閥瓣施加壓力，以強制密封面不泄漏。氧氣截止閥是氧氣管網專用閥門的一種.使用于城市液化氣石油氣貯備站,氧氣截止閥也使用于煉油廠,石油化工廠,石油化工廠的液化氣系統,作為控制介質截流的啟閉裝置.

Brief introduction of imported oxygen stop valve products:
German Locke "de Locke" imported oxygen stop valve is a forced sealing valve, so when the valve is closed, pressure must be applied to the disc to force the sealing surface not to leak. Oxygen shut-off valve is a kind of special valve for oxygen pipe network. It is used in urban LPG storage station. Oxygen shut-off valve is also used in LPG system of refineries, petrochemical plants and petrochemical plants as an on-off device to control medium closure