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    A valve device for controlling flow of sterile fluid material, and a feeding and cleaning device incorporating said valve device
    22.
    发明公开
    A valve device for controlling flow of sterile fluid material, and a feeding and cleaning device incorporating said valve device 失效
    用于控制无定形流体材料的流动的阀装置，以及包含阀门装置的进料和清洁装置

    公开(公告)号：EP0332806A3

    公开(公告)日：1991-04-24

    申请号：EP89100718.9

    申请日：1989-01-17

    申请人： TETRA DEV-CO

    发明人： Mattei, Vittorio

    IPC分类号： F16K1/44

    CPC分类号： B08B3/00 ,  F16K1/446 ,  Y10T137/4259 ,  Y10T137/4266 ,  Y10T137/88062

    摘要： A valve device for controlling flow of a sterile fluid production material (20) from a supply pipe (20) to a delivery pipe (6) comprises a first valve (1) having a first valve member (1a) for opening and closing a flow path from said supply pipe (11), a second valve (2) coaxial with said first valve (1) and having a second valve member (2a) for opening and closing a flow path into said delivery pipe (6), a chamber (5) formed between said first and second valves (1,2) and a steam inlet pipe (3) and steam outlet pipe (4) connected at opposite sides to said chamber (5) substantially at right angles to the common axis of said valves (1,2) for conducting a flow of steam through said chamber (5) for cleaning and sterilizing said valve members (1a,2a) when in the closed position. When using the valve in a device to feed sterile fluid production material (20) to processing stages said steam inlet pipe (3) of the valve device (A) is connected to a steam source (31) through a first steam valve (13), said steam outlet pipe (4) is connected to a discharge

    Piston unit with rolling membrane
    23.
    发明公开
    Piston unit with rolling membrane 失效
    Kolbeneinheit mit Rollmembranen。

    公开(公告)号：EP0410125A1

    公开(公告)日：1991-01-30

    申请号：EP90111200.3

    申请日：1990-06-13

    申请人： TETRA DEV-CO

    发明人： Santi, Franco ,  Bordini, Giorgio

    IPC分类号： F04B43/00

    CPC分类号： F04B43/009

    摘要： Piston units with rolling membrane are used for the handling of liquid products which require good hygiene, e.g. foodstuffs such as milk products. In a piston unit used as a pressure-compensating device pressure variations in a product line are dampened in that the side of the piston (6) remote from the product line (5) is subjected to a variable air pressure. Rolling membranes (7,8) are positioned on both sides of the piston and enclose between them a chamber (13) which is connected to a source of vacuum (14) so as to secure contact of the membranes with the piston. The vacuum is distributed in the chamber (13) with the help of a vacuum line (15) with enlarged outlet area, and is distributed over the end faces of the piston (6) by means of a network of ducts (19,20) in the piston.

    摘要翻译： 具有滚动膜的活塞单元用于处理需要良好卫生的液体产品，例如， 食品如牛奶制品。 在用作压力补偿装置的活塞单元中，产品线中的压力变化被抑制为远离产品线（5）的活塞（6）的侧面受到可变的空气压力。 滚动膜（7,8）位于活塞的两侧并且在它们之间包围连接到真空源（14）的室（13），以便确保膜与活塞的接触。 借助于具有扩大的出口面积的真空管线（15）将真空分配在腔室（13）中，并通过管道网络（19,20）分布在活塞（6）的端面上， 在活塞中。

    Valve
    26.
    发明公开
    Valve 失效

    公开(公告)号：EP0226157A3

    公开(公告)日：1988-03-30

    申请号：EP86117034

    申请日：1986-12-08

    申请人： TETRA DEV-CO

    发明人： Bordini, Giorgio

    IPC分类号： F16K29/00

    CPC分类号： F16K29/00

    摘要： Valves used in lines for liquids containing particles may on occasion be prevented by particles adhering between the head and the seat of the valve from assuming a fully closed position. This is prevented by making the valve head (4) capable of turning or rotating in respect of the seat (8), as a result of which obstructing particles can, by turning of the valve head, be cut off, crushed or by other means rendered harmless so that the valve can be fully closed.

    Aseptic constant flow valve
    27.
    发明公开
    Aseptic constant flow valve 失效
    无菌定流量阀。

    公开(公告)号：EP0228514A1

    公开(公告)日：1987-07-15

    申请号：EP86113796.6

    申请日：1986-10-05

    申请人： TETRA DEV-CO

    发明人： Hilmersson, Anders ,  Cazzarolli, Maurizio

    IPC分类号： B65B59/00 ,  F16K31/12

    CPC分类号： B67C3/28 ,  B67C3/001 ,  G05D7/0126 ,  Y10T137/7788

    摘要： Aseptic constant flow valves to be used, for example, in the dairy industry should be readily washable and allow steriliz­ation by means of conventional washing and sterilizing agents. A valve which fulfils these requirements comprises an operating chamber with inlet and outlet which is connected to the valve housing and therefore can be circulation-washed and sterilized together with the latter.