Patent ID: 6821773
Filing Date: 2004-11-23
Classification: C12M,F16K,G01N

Abstract:
A valve for insertion into a ferrule having a given internal diameter, the valve having a sample cavity, a sampling orifice and a drain outlet, the sampling orifice and drain outlet being operatively connected to the sample cavity, a diameter of the sampling orifice being determined by the following formula:Dov< or =Dfvâˆ’[(Dr1+Dr2)+(Dv1+Dv2)+(Dw1+Dw2)+(Ds1+Ds2)+Div+Ddv], wherein Dov is the diametric height for orifice construction, Dfv is the ferrule bore diametric height, Dr1 and Dr2 are the diametric spaces required to seal a body of the valve with a bore of the ferrule, Dv1 and Dv2 are the diametric spaces required to form upper and lower margins, respectively, of an annular wall of the valve body, Dw1 and Dw2 are the diametric spaces required to form an outer wall at the upper and lower margins of the valve body, respectively, Ds1 and Ds2 are the diametric spaces required to allow for an intersticial space between an inside diameter of the ferrule and an outside diameter of the valve body along the upper and lower margins of the valve body, respectively, Div is the diametric height lost due to an inclination of the bore, and Ddv is the diametric height to assure channel drainage.