管道伸縮器、止回閥類
止回閥

工作原理:

Working principle:

橡膠、金屬聯接器,主要由松套法蘭,橡膠、金屬波紋管等部件組成。管道系統因環境溫度或使用溫度產生冷縮或膨脹時,所產生的力和變形量、偏移角度,聯接器都能很好的補償。能吸收系統振動,降低系統噪音,接頭兩端任意偏轉,能自由調節軸向或橫向位移等。

The rubber, metal connector is mainly made up of free flange, rubber and metal ripple pipe etc. The system pipe contracts or expands because of environment temperature or using temperature. The connector can compensate the force, distortion amount and excursion angle, which is made by contracting or expanding. It can absorb system quiver and reduce system noise. The joint ends can be deflected arbitrarily and adjust shaft freely.

止回閥,主要由閥體、蝶板、彈簧、絞軸及橡膠圈等部件組成。介質由蝶板無簧面進入,當兩半圓形蝶板在受介質壓力超過彈簧支承力后,使蝶板自行打開,當切斷前方介質壓力后,蝶板在彈簧壓力及介質反壓力作用下迅速關閉。微阻緩閉止回閥,蝶板在彈簧壓力及介質反作用力下觸及液壓微阻裝置,隨著反作用力增大,蝶板緩緩關閉。風道止回閥,蝶板在重錘作用力及介質反作用力下迅速關閥。

The check valve is mainly made up of valve body, butterfly board, spring, wring shaft and rubber ring etc. the medium enter from butterfly board which is without spring. When medium pressure of the two round butterfly boards is beyond the spring bearing, the board will open itself. When cut off the medium pressure ahead, the board will close quickly on the effect of spring pressure and medium counterforce. The board of micro-block slow-close check valve touches the hydraulic micro-block device on the effect of spring pressure and medium anti-pressure. The board closes slowly as the counterforce increasing. The board of venting pipe check valve close quickly on the effect of hammer force and medium counterforce.

 

安裝及調試:

Installation and regulation

l  安裝前必需清潔閥門內腔,不允許有任何雜物和污垢附著。

l  法蘭式連接在安裝時,兩法蘭間需加密封墊。對夾式連接在安裝時,在法蘭與閥體連接處需加密封墊,然后均勻擰緊螺栓。

l  止回閥安裝時請注意流向(閥體上有箭頭標明)。

l  安裝時請調整使伸縮管伸出到伸縮量的1/2。使用一定期限后,需更換密封圈。

l   The body must be cleaned before installed and there is no dirt and sundries clinging to the body.

l   Add seal cushion between two flanges of flange type connection or between the flange and valve body of dual clamp type connection, then screw down bolt when installs the valve.

l   Pay attention to the flow direction of check valve when install. There is arrow on the valve body.

l   Extend the pipe to the 1/2 of extension amount when install the extension pipe. Seal rings need to be exchanged after the steel extension pipe has been used for a period of time limit.

 

訂貨須知:

Information for order

l  選用訂貨時,請參照產品樣本注明產品規格、型號及技術參數(使用溫度,設備工況、介質性質及工作壓力等)。

l  表格中未列的規格、用于特殊介質或其它特殊要求,請與我公司銷售部、技術部聯系,可為您另行設計制造。

l   Please indicate the type, model and technical parameter (using temperature, working condition of equipment and characteristic of medium etc) referring to the product sample when you place an order

l  If you have other special demand, need special medium or the spec that is not listed in the table, please contact with our department of market and technology. We can design and manufacture for you especially.


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