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進口偏心半球閥德國洛克為世界造好閥

進口偏心半球閥結(jié)構(gòu)特點：

1、偏心半球閥其結(jié)構(gòu)采用偏心契緊原理通過傳動機構(gòu)達到閘緊、調(diào)節(jié)、關閉的目的，密封副是金屬面環(huán)帶硬面接觸密封，雙偏心結(jié)構(gòu)在開啟時閥芯位于藏球室內(nèi)，流通截面大，且閥門不被沖刷，關閉時閥芯不被沖刷，開啟時閥芯球面沿閥座漸進，有效地切除結(jié)垢障礙，實現(xiàn)可靠密封。它對兩相混流易結(jié)垢固體析出的混流輸送特別有效； 

2、閥門的半球用雙金屬，母材上堆焊不同的合金，閥座也作相應堆焊經(jīng)特殊的處理，密封面組合成防腐、耐磨、高強度等各種類型，滿足不同場合需求； 

3、密封嚴密、輸送有害氣體可達零泄露；

4、密封副的閥芯留有補償量、當閥做磨損后，關閉時再轉(zhuǎn)動少許，任能可靠密封，延長了使用壽命。此外，用戶將壓緊螺母擰掉，調(diào)整或更換后閥座仍可用，避免了閥門密封失效后，整臺報廢的弊端；

因堆焊不同合金（或組合球）雙金屬密封副的選配可以用于耐磨、耐腐蝕、耐高溫且要求嚴格密封的工況。

進口偏心半球閥規(guī)格參數(shù)：

1.公稱通徑:    1"~64"（DN25~1600mm）

2.壓力等級:    Class150LB~900LB

3.適用溫度:    -40℃~425℃

4.連接方式:    對夾式,法蘭，焊接

5.閥體材質(zhì):    WCB，304,304L,316,316L，WC6，WC9等

6.操作方式:    手動，電動，氣動等

7.密封結(jié)構(gòu):    軟密封，硬密封

8.適用介質(zhì):    水、氣體、油品、蒸汽、液體、顆粒固體等

進口偏心半球閥工作原理：

偏心半球閥由閥桿帶動球體繞旋轉(zhuǎn)中心A轉(zhuǎn)動時，球體由B點移到C點，此時相對閥門中心O，從B到C的軌跡為一凸輪狀偏心，向下進入閥座使閥門關閉保持密封。該閥由于存在上述凸輪原理，閥門關閉件從開啟到關閉過程中，作用在閥座上的力逐漸增加，即關閉件表面與閥座由完全脫離至接觸，并逐漸增大密封比壓，直至完全密封，反之亦然。這就大大改善了以往球閥的密封狀態(tài)和密封效果，適合高溫高壓及易結(jié)晶磨損嚴重的場合使用。

Working principle of imported eccentric hemisphere valve:
When the eccentric hemispherical valve is driven by the stem to rotate around the rotation center a, the ball moves from point B to point C. at this time, relative to the valve center O, the trajectory from B to C is a cam shaped eccentric, and it goes down into the valve seat to make the valve close and keep the seal. Due to the above cam principle, the force acting on the valve seat gradually increases from opening to closing, that is, the surface of the closing part is completely separated from the valve seat to contact, and the sealing pressure is gradually increased until it is completely sealed, and vice versa. This greatly improves the sealing state and sealing effect of the previous ball valve, and is suitable for high temperature, high pressure, easy crystallization and severe wear.

進口偏心半球閥產(chǎn)品簡介：

德國洛克《DE LOCKE》進口雙偏心半球閥其結(jié)構(gòu)采用偏心楔緊原理,通過傳動機構(gòu)達到閘緊、調(diào)節(jié)、關閉的目的，密封副是金屬面環(huán)帶硬面接觸密封，雙偏心結(jié)構(gòu)在開啟時閥芯位于藏球室內(nèi)，流通截面大，且閥門不被沖刷，關閉時閥芯不被沖刷，開啟時閥芯球面沿閥座漸進，效地切除結(jié)垢障礙，實現(xiàn)可靠密封。它對兩相混流易結(jié)垢固體析出的混流輸送特別有效。

Introduction of imported eccentric hemisphere valve products:
The structure of double eccentric hemisphere valve imported from German Locke adopts the principle of eccentric wedge tightening, Through the transmission mechanism to achieve the purpose of locking, adjusting and closing, the sealing pair is metal face ring with hard surface contact seal, double eccentric structure, when opening, the valve core is located in the ball chamber, the flow section is large, and the valve is not scoured, when closing, the valve core is not scoured, when opening, the spherical surface of the valve core gradually along the valve seat, effectively removing the scaling obstacles, to achieve reliable sealing. It is especially effective for the transportation of two-phase mixed flow which is easy to scale solid.