Mounting of orifice plates
AssigneePrecision Flow, Inc.
InventorDaniel Gawlik
Life of this patent
Estimating the term…
Abstract
Thin metal adaptor rings fit over the elastomeric seal rings holding an orifice plate within a fitting. The thin metal rings have an inside diameter equal to the inside diameter of the pipe line and fitting. Therefore, the inside diameter is maintained without variations as previously resulted from protrusion or recess tolerances of the elastomeric seal rings. The seal ring is modified with notches to hold the thin metal adaptor rings in the desired position.
Claims10
In combination with an orifice plate with a seal in a fitting having an inside diameter, said fitting in a fluid pipe line, said pipe line having a pipe line inside diameter equal to the inside diameter of the fitting, the improvement comprising:
- a) two circular adaptor rings, each having substantially a L-shaped cross section
- i) a cylindrical, circumferential flange with an inside diameter formed from one leg of the L-shaped cross section,
- ii) the inside diameter of the circumferential flange equal to the inside diameter of the pipe line and fitting, and
- iii) a radial flange formed from the other leg of the L-shaped cross section with a radial face and an inside diameter co-axial with and equal to the inside diameter of the circumferential flange,
- b) the radial face of the radial flange of one adaptor ring contacting an upstream face of the orifice plate, and
- c) the radial face of the radial flange of the other adaptor ring contacting a down stream face of the orifice plate.
Dependencies are inferred from the claim text.