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Valve for sterile sampling of a liquid sample from a container

A liquid sample and container technology, applied in the field of aseptic sampling valves, can solve problems such as difficult sampling and large overflow, and achieve the effects of improving cleaning work, simplifying the system, and reducing the risk of sampling contamination

Active Publication Date: 2006-12-27
KEOFITT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This in turn makes sampling difficult because unwanted cylinder clearances are created in the valve system, which in some cases is highly undesirable as this can lead to considerable overflow

Method used

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  • Valve for sterile sampling of a liquid sample from a container
  • Valve for sterile sampling of a liquid sample from a container
  • Valve for sterile sampling of a liquid sample from a container

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] The embodiment of the valve according to the invention shown in FIGS. 1 to 3 comprises a valve body 1 in which a valve chamber is formed in the form of an axial bore 2 . In the bore 2 a hollow outer valve shaft 3 is arranged axially, in which shaft an inner valve shaft 4 is arranged coaxially. The valve shafts 4, 3 are independently displaceable in the axial direction of the valve independently of each other. A first valve plug 5 a and a second valve plug 5 b are formed in the form of a single rubber boot region 5 at the ends of the valve shafts 4 , 3 . However, the valve plugs 5a, 5b may also be made of any suitable type of ductile material or a suitable non-ductile material such as PTFE (polytetrafluoroethylene). In the latter case, the plug may for example comprise corrugations which, when the inlets 6, 9 are closed, can stretch like an accordion without stretching the material itself.

[0027] In the valve body 1 a sampling inlet 6 is arranged coaxially with the v...

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Abstract

A valve for sterile sampling of a liquid sample from a container comprises a valve body (1) with a. valve chamber (2) . The valve is moreover provided with a sample inlet (6) in the valve chamber (2), a first valve seat (7), a first valve plug (5a) for closing the sample inlet (6) through abutment against a first valve seat (7), an outlet (8) from the valve chamber (2) , a cleaning inlet (9) in the valve chamber (2) for disinfection fluid, a second valve seat (10) and a second valve plug (5b) . The outlet (8) is positioned between the two valve seats (7, 10) , and the second valve seat (10) and the second valve plug (5b) are positioned in such a manner that the second valve plug (5b) through abutment against the second valve seat (10) cuts off the inflow of disinfection fluid in an area (2b) of the valve chamber (2) at the sample inlet (6).

Description

technical field [0001] The invention relates to a valve for aseptic sampling of a liquid sample in a container, the valve comprising a valve body with a valve chamber, a sampling inlet in the valve chamber surrounded by a first valve seat, for A first valve plug closing the sampling inlet, an outlet of the valve chamber, a cleaning inlet in the valve chamber for a sanitizing liquid, a second valve seat and a second valve plug. Background technique [0002] Among other applications, valves of this type are used in the food industry for sampling milk, juice and beer, etc., where a sterile-tight valve is required for the sampling of samples. Such sterile seals are also advantageously used, for example, in the pharmaceutical industry. [0003] WO 90 / 12972 discloses a sampling valve having only a single valve seat. A valve seat is provided around the axially disposed sampling inlet, wherein the sampling inlet is closed by displacement of the valve shaft so that the valve shaft ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D3/10F16K1/44G01N1/20F16K7/16G01N1/10
CPCG01N1/10F16K1/446G01N2001/205F17D3/10F16K7/16Y10T137/87121Y10T137/87684Y10T137/86879Y10T137/4259
Inventor H·L·萨洛蒙
Owner KEOFITT
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