進(jìn)口金屬硬密封蝶閥德國洛克品牌的分類及選型依據(jù)

 

進(jìn)口金屬硬密封蝶閥結(jié)構(gòu)特點(diǎn)：

1、進(jìn)口金屬硬密封蝶閥采用三偏心密封結(jié)構(gòu)，閥座與蝶板幾乎無磨損，具有越觀越緊的密封功能

2、密封圈選用不銹鋼制作，具有金屬硬密封和彈性密封的雙重優(yōu)點(diǎn)，無論在低溫和高溫的情況下，均具有優(yōu)良的密封性能，具有耐腐蝕,使用壽命長等特點(diǎn)

3、蝶板密封面采用堆焊鈷基硬質(zhì)合金，密封面耐磨損，使用壽命長

4、大規(guī)格蝶板采用絎架結(jié)構(gòu)，強(qiáng)度高，過流面積大，流阻小

5、金屬硬密封蝶閥具有雙向密封功能，安裝時(shí)不受介質(zhì)流向的限制，也不受空間位置的影響，可在任何方向安裝

6、驅(qū)動(dòng)裝置可以多工位（旋轉(zhuǎn)90°或180°）安裝，便于用戶使用

                                                                                 

進(jìn)口金屬硬密封蝶閥規(guī)格參數(shù)：

公稱通徑：DN15-DN2000

公稱壓力：150LB-600LB

設(shè)計(jì)溫度：-29℃-550℃

連接方式：法蘭、對(duì)夾

適用介質(zhì)：水、氣、油、化工、鹽水、燃?xì)?，天然氣等等介質(zhì)

 

零件材質(zhì)

閥體：鑄鐵、不銹鋼、鉻鉬鋼、合金鋼

蝶板：鑄鋼、合金鋼、不銹鋼、鉻鉬鋼

密封圈：不銹鋼與耐高溫石棉板組合成多層次

閥桿：2Cr13、1Cr13不銹鋼、鉻鉬鋼

軸承：奧氏體不銹鋼、304氮化

填料：柔性石墨

                                                                                   

進(jìn)口金屬硬密封蝶閥工作原理：

金屬硬密封蝶閥采用三偏心金屬密封結(jié)構(gòu)，不僅具有普通多級(jí)三偏心金屬硬密封蝶閥的所有優(yōu)良性能，而且還改進(jìn)和創(chuàng)新設(shè)計(jì)，合理降低徑向偏心率，并增加自動(dòng)補(bǔ)償。閥座的功能是在關(guān)閉狀態(tài)下，閥桿受到較小的扭矩并處于靜態(tài)平衡狀態(tài)。同時(shí)，蝶閥閥體設(shè)計(jì)有移動(dòng)閥座密封，具有很好的自動(dòng)補(bǔ)償功能。當(dāng)閥門反向按壓時(shí)，盤片密封面和閥體密封面產(chǎn)生的相對(duì)位移得到充分補(bǔ)償，蝶形密封圈采用優(yōu)質(zhì)彈性耐磨材料制成。石墨橡膠板和高韌性耐磨不銹鋼。該薄膜由多層結(jié)構(gòu)密封組成，不僅柔軟而且堅(jiān)硬，而且還具有非常好的彈性，以保持與移動(dòng)座密封的粘合。因此，無論前進(jìn)壓力還是反向壓力，蝶閥都可以使壓力完全減壓。達(dá)到100％零泄漏。該閥門的*特點(diǎn)是可在兩個(gè)方向上加壓并易于維護(hù)。

Working principle of imported metal hard seal butterfly valve:
Metal hard seal butterfly valve adopts three eccentric metal seal structure, which not only has all excellent performance of ordinary multi-stage metal hard seal butterfly valve, but also improves and innovates design, reasonably reduces radial eccentricity and increases automatic compensation. The function of the seat is to close the valve stem to a small torque and in a static balance state. At the same time, the valve body is designed with movable seat seal and has a good automatic compensation function. When the valve is pressed in reverse direction, the relative displacement of disc sealing surface and valve body sealing surface is fully compensated. Butterfly seal ring is made of high-quality elastic wear-resistant material. Graphite rubber plate and high toughness wear-resistant stainless steel. The film is composed of multi-layer structural seal, which is not only soft and hard, but also has excellent elasticity to keep the adhesive with the seal of the mobile seat. Therefore, whether the forward pressure or the reverse pressure, the butterfly valve can make the pressure completely reduced. 100% zero leakage. The biggest feature of the valve is that it can be pressurized in both directions and easy to maintain.

 

進(jìn)口金屬硬密封蝶閥產(chǎn)品簡介：

德國洛克《DE LOCKE》進(jìn)口金屬硬密封蝶閥采用一個(gè)“U”型不銹鋼密封圈，該精密的彈性密封圈與經(jīng)過拋光的蝶板三維偏心接觸。解決了傳統(tǒng)偏心蝶閥在啟閉0°～10°瞬間密封面仍處于滑動(dòng)接觸摩擦的弊病,實(shí)現(xiàn)蝶板在開啟瞬間密封面即分離,關(guān)閉接觸即密封的效果,達(dá)到延長使用壽命、密封性能的目的。因此被廣泛地應(yīng)用到介質(zhì)溫度≤550℃的冶金、電力、石油、化工、空氣、煤氣、可燃?xì)怏w以及給排水等腐蝕性介質(zhì)的管道上，是調(diào)節(jié)流量和截?cái)嗔黧w的裝置。

Introduction to imported metal hard seal butterfly valve products:
The imported metal hard seal butterfly valve of de lock in Germany adopts a "U" stainless steel sealing ring, which is in eccentric contact with the polished butterfly plate in three-dimensional eccentric way. The disadvantages of traditional eccentric butterfly valve are solved, which are that the sealing surface is still in sliding contact friction at the moment of opening and closing 0 ° ~ 10 °, and the sealing surface of butterfly plate is separated at the moment of opening, and the closing contact is the sealing effect, and the service life and sealing performance can be prolonged. Therefore, it is widely used in the pipeline of corrosive medium such as metallurgy, power, petroleum, chemical industry, air, gas, combustible gas and water supply and drainage with medium temperature ≤ 550 ℃, which is a device for regulating flow and cutting off fluid.