Measuring and testing – Sampler – sample handling – etc. – Withdrawing through conduit or receptacle wall
Patent
1982-02-18
1984-07-10
Yasich, Daniel M.
Measuring and testing
Sampler, sample handling, etc.
Withdrawing through conduit or receptacle wall
137240, G01N 110, F16K 144
Patent
active
044585438
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, it is ensured that no intermixing of the product or the product sample with the cleaning or disinfecting agent will be possible. The sampling valve includes, inter alia, a closing member (5) having the form of a hollow cylinder and prestressed against a housing seat surface (3a), the cylinder bore (15) of said closing member (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 reflief bores (18a) connect the interior of the spring housing and stuffing box shell (4) to the atmosphere (FIG. 2).
REFERENCES:
patent: 1724017 (1929-04-01), Godfrey
patent: 3517688 (1970-06-01), Scholle
patent: 4194524 (1980-03-01), Wicke
patent: 4344453 (1982-08-01), Tuchenhagen et al.
Publ. "In Line Relief & Sampler Head Assemblies" Welker Engineering Co., 9 pages.
Otto Tuchenhagen GmbH & Co. KG
Yasich Daniel M.
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