德國洛克進(jìn)口軟密封蝶閥 

一、進(jìn)口軟密封蝶閥產(chǎn)品簡介：

德國《LOCKE》洛克進(jìn)口軟密封蝶閥是用圓形蝶板作啟閉件并隨閥桿轉(zhuǎn)動來開啟、關(guān)閉和調(diào)節(jié)流體通道的一種閥門。蝶閥不僅結(jié)構(gòu)簡單、體積小、重量輕、材料耗用省，安裝尺寸小，而且驅(qū)動力矩小，操作簡便、迅速，并且還同時(shí)具有良好的流量調(diào)節(jié)功能和關(guān)閉密封特性，在大中口徑、中低壓力的使用領(lǐng)域，蝶閥是主導(dǎo)的閥門形式。隨著防腐合成橡膠和聚四氟乙烯的應(yīng)用，蝶閥的性能得以提高，并滿足于不同的工況條件。近十幾年來，金屬密封蝶閥發(fā)展迅速，隨著耐高溫、耐低溫、耐強(qiáng)腐蝕、耐強(qiáng)沖蝕、高強(qiáng)度合金材料在蝶閥中的應(yīng)用，使金屬密封蝶閥在高溫、低溫、強(qiáng)沖蝕等工況條件下得到廣泛的應(yīng)用，并部分取代了截止閥、閘閥和球閥。

Locke soft seal butterfly valve is a kind of valve which uses circular butterfly plate as the opening and closing parts and turns with the valve stem to open, close and adjust the fluid channel. Butterfly valve is not only simple in structure, small in volume, light in weight, low in material consumption, small in installation size, small in driving torque, simple and rapid in operation, but also has good flow regulation function and closing sealing characteristics. In the field of large and medium caliber, medium and low pressure use, butterfly valve is the leading valve form. With the application of anticorrosive synthetic rubber and polytetrafluoroethylene, the performance of butterfly valve can be improved and meet different working conditions. In recent ten years, the metal seal butterfly valve has developed rapidly. With the application of high temperature, low temperature, strong corrosion, strong erosion and high strength alloy materials in the butterfly valve, the metal seal butterfly valve has been widely used in high temperature, low temperature, strong erosion and other working conditions, and partially replaced the stop valve, gate valve and ball valve.

二、進(jìn)口軟密封蝶閥結(jié)構(gòu)特點(diǎn)：

1、啟閉方便迅速、省力、流體阻力小，可以經(jīng)常操作。

2、結(jié)構(gòu)簡單，外形尺寸小，結(jié)構(gòu)長度短，體積小，重量輕，適用于大口徑的閥門。

3、可以運(yùn)送泥漿，在管道口積存液體最少。

4、低壓下，可以實(shí)現(xiàn)良好的密封。

5、調(diào)節(jié)性能好。

6、全開時(shí)閥座通道有效流通面積較大，流體阻力較小。

7、啟閉力矩較小，由于轉(zhuǎn)軸兩側(cè)蝶板受介質(zhì)作用基本相等，而產(chǎn)生轉(zhuǎn)矩的方向相反，因而啟閉較省力。

8、密封面材料一般采用橡膠、塑料、故低壓密封性能好。

9、安裝方便。

10、操作靈活省力，可選擇手動、電動、氣動、液壓方式。

1. The opening and closing is convenient, quick, labor-saving, low fluid resistance, and can be operated frequently.

2. Simple structure, small size, short length, small volume, light weight, suitable for large caliber valves.

3. It can transport mud and store the least liquid at the pipe mouth.

4. Under low pressure, good sealing can be achieved.

5. Good regulation performance.

6. When the valve is fully opened, the effective flow area of the valve seat channel is larger and the fluid resistance is smaller.

7. The opening and closing torque is small, because the disc on both sides of the shaft is basically the same under the action of the medium, and the direction of the torque is opposite, so the opening and closing is more labor-saving.

8. The sealing surface material is generally rubber and plastic, so the low-pressure sealing performance is good.

9. Easy to install.

10. Flexible and labor-saving operation, manual, electric, pneumatic and hydraulic modes can be selected.

三、進(jìn)口軟密封蝶閥安裝與維護(hù)：

1、在安裝時(shí)，閥瓣要停在關(guān)閉的位置上。

2、開啟位置應(yīng)按蝶板的旋轉(zhuǎn)角度來確定。

3、帶有旁通閥的蝶閥，開啟前應(yīng)先打開旁通閥。

4、應(yīng)按制造廠的安裝說明書進(jìn)行安裝，重量大的蝶閥，應(yīng)設(shè)置牢固的基礎(chǔ)。

5、蝶閥的蝶板安裝于管道的直徑方向。在蝶閥閥體圓柱形通道內(nèi)，圓盤形蝶板繞著軸線旋轉(zhuǎn)，旋轉(zhuǎn)角度為 0°~90° 之間，旋轉(zhuǎn)到 90° 時(shí)，閥門則牌全開狀態(tài)。

6、如果要求蝶閥作為流量控制使用，主要的是正確選擇閥門的尺寸和類型。蝶閥的結(jié)構(gòu)原理尤其適合制作大口徑閥門。蝶閥不僅在石油、煤氣、化工、水處理等一般工業(yè)上得到廣泛應(yīng)用，而且還應(yīng)用于熱電站的冷卻水系統(tǒng)。

7、常用的蝶閥有對夾式蝶閥和法蘭式蝶閥兩種。對夾式蝶閥是用雙頭螺栓將閥門連接在兩管道法蘭之間，法蘭式蝶閥是閥門上帶有法蘭，用螺栓將閥門上兩端法蘭連接在管道法蘭上。

8、蝶閥的蝶板安裝于管道的直徑方向。在蝶閥閥體圓柱形通道內(nèi)，圓盤形蝶板繞著軸線旋轉(zhuǎn)，旋轉(zhuǎn)角度為 0°~90° 之間，旋轉(zhuǎn)到 90° 時(shí)，閥門則牌全開狀態(tài)。

1. During installation, the disc shall be stopped at the closed position.

2. The opening position shall be determined according to the rotation angle of butterfly plate.

3. For butterfly valve with bypass valve, the bypass valve shall be opened before opening.

4. The installation shall be carried out according to the installation instructions of the manufacturer. The heavy butterfly valve shall be provided with a firm foundation.

5. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, with the rotation angle between 0 ° and 90 °. When it rotates to 90 °, the valve will be fully open.

6. If butterfly valve is required to be used as flow control, the main thing is to correctly select the size and type of valve. The structure and principle of butterfly valve is especially suitable for making large diameter valve. Butterfly valve is not only widely used in petroleum, gas, chemical industry, water treatment and other general industries, but also in the cooling water system of thermal power station.

7. There are two kinds of butterfly valves commonly used: wafer butterfly valve and flange butterfly valve. The double clip butterfly valve is connected between two pipe flanges with stud bolts. The flange butterfly valve has flange on the valve, and the flange on both ends of the valve is connected to the pipe flange with bolts.

8. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, with the rotation angle between 0 ° and 90 °. When it rotates to 90 °, the valve will be fully open.

四、進(jìn)口軟密封蝶閥主要參數(shù)：

1、公稱通徑DN40-DN2000

2、公稱壓力PN6-PN64或ANSI50LB-300LB

3、使用溫度： 0℃～+120℃（四氟密封可達(dá)180℃）

4、閥體材料：鑄鐵、鑄鋼、不銹鋼

5、密封材料：丁腈橡膠、三元乙丙橡膠、聚四氟乙烯

6、傳動方式：手柄、蝸輪傳動、電動、氣動

7、連接方式：對夾式、焊接、法蘭

8、附加功能：電動帶手動、氣動帶手動、遠(yuǎn)程及就地顯示控制

1. Nominal diameter dn40-dn2000

2. Nominal pressure pn6-pn64 or ansi50lb-300lb

3. Service temperature: 0 ℃ ~ + 120 ℃ (teflon seal up to 180 ℃)

4. Body material: cast iron, cast steel, stainless steel

5. Sealing materials: NBR, EPDM, PTFE

6. Transmission mode: handle, worm gear, electric and pneumatic

7. Connection mode: wafer type, welding, flange

8. Additional functions: electric with manual, pneumatic with manual, remote and local display control