2.
    发明专利
    未知

    公开(公告)号:AT69740T

    公开(公告)日:1991-12-15

    申请号:AT87900976

    申请日:1987-01-15

    Abstract: A liquid diluting and transfer valve has disc like valve elements provided with faces frictionally engaged. The valve further includes passageways for passing both sample liquid and rinse liquid and a continuous groove formed in one of the respective faces. This continuous groove effectively isolates the passageway openings to the faces and is capable of blocking passage of leakage material along the face to the periphery of the engaged face.

    LIQUID SAMPLING VALVE.
    5.
    发明公开
    LIQUID SAMPLING VALVE. 失效
    阀用于样品获取的液体。

    公开(公告)号:EP0254739A4

    公开(公告)日:1988-11-14

    申请号:EP87900976

    申请日:1987-01-15

    CPC classification number: G01N35/1097 G01N1/38 Y10T137/4259

    Abstract: A liquid diluting and transfer valve (10) with disc like valve elements (12, 14, 16) with faces (12', 14', 14'', 16') which are frictionally engaged. Each disc like valve element (12, 14, 16) further includes passageways (30, 64, 66, 70, 73, 32) which can be used to pass both sample liquid and rinse liquid. A continuous groove (100) is formed in one of the respective faces (12', 16') for effectively isolating the passageway openings (30, 64, 66, 70, 73, 32) to the face (12', 16'). The continuous groove (100) is capable of blocking passage of material leaking along the face (12', 16') to the periphery of that engaged face (12', 16').

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