G - Physics – 01 – N
Patent
G - Physics
01
N
73/103
G01N 1/10 (2006.01) B67C 3/00 (2006.01) F16K 1/44 (2006.01)
Patent
CA 1168063
Abstract The invention relates to a cleanable sampling valve to be incorporated into the product line supplying the samples. With such a valve it is ensured that repeated sampling during one long-time product charge passage will take place under optimum sterile conditions and any entrainment of product into the sealing area and the consequent risk of reinfection emanating from that area will be precluded. In addition to that, it shall be ensured at all events that no intermixing of the product of the product sample with cleaning or disinfecting agent will be possible. The sampling valve includes, inter alia, a closing element(5) having the form of a hollow cylinder and being prestressed against a housing seat surface (3a), the cylinder bore (15) of said closing element(5) being open to a spring housing and stuffing box shell (4) in the closed position of the sampling valve and being closed in the open position through a controlling clearance (22) by means of a lower valve stem seal (23) while controllable relief bores (18a) connect the interior of the spring housing and stuffing box shell (4) to the atmosphere (Fig. 2).
397193
Fetherstonhaugh & Co.
Tuchenhagen (otto) G.m.b.h. & Co. Kg
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