Pressure testing of tubular fitting installed to a ported wall
AssigneeAmerican Brass & Aluminum Foundry Co., Inc.
InventorRobert A. Oropallo
Life of this patent
Estimating the term…
Abstract
A pipe fitting having a end flange and forming a port radially inwardly of the flange to align with the wall opening; an annular elastomeric seal positioned to be compressed between the flange and the work body wall for preventing leakage of fluid outwardly from the wall opening; a test cap unit spaced from the seal and aligned therewith to close off the opening and fastener structure extending through the cap unit and adjustably attached to the fitting for urging the cap unit into sealing relation with the inner side of the work body wall, about the opening, when the seal is compressed as aforesaid, whereby the cap unit then closes off the opening so that test liquid under pressure can be filled into the fitting to test for leakage adjacent the elastomeric seal.
Claims10
In combination, for use with work body wall having inner and outer sides, and an opening therethrough,
- a) a pipe fitting having an end flange and forming a port radially inwardly of the flange to align with said wall opening,
- b) an annular elastomeric seal positioned to be compressed between the flange and said work body wall for preventing leakage of fluid outwardly from said wall opening,
- c) a test cap unit spaced from said seal and aligned therewith to close off said opening,
- d) and fastener means extending through said cap unit and adjustably attached to said fitting for urging the cap unit into sealing relation with the inner side of said work body wall, about said opening, when said seal is compressed as aforesaid, whereby the cap unit then closes off said opening so that test liquid under pressure can be filled into said fitting to test for leakage adjacent said elastomeric seal,
- e) said test cap unit including a grooved plate and an O-ring associated with said plate to protrude relative to the plate for sealing engagement with the inner side of said body wall.
In combination, for use with a work body wall having inner and outer sides, and an opening therethrough,
- a) a pipe fitting having an end flange and forming a port radially inwardly of the flange to align with said wall opening,
- b) an annular elastomeric seal positioned to be compressed between the flange and said work body wall for preventing leakage of fluid outwardly from said wall opening,
- c) a test cap unit spaced from said seal and aligned therewith to close off said opening,
- d) and fastener means extending through said cap unit and adjustably attached to said fitting for urging the cap unit into sealing relation with the inner side of said work body wall, about said opening, when said seal is compressed as aforesaid, whereby the cap unit then closes off said opening so that test liquid under pressure can be filled into said fitting to test for leakage adjacent said elastomeric seal.
- e) said cap unit including a plate and an elastomeric O-ring carried by the plate, said O-ring having a first annular part, and wherein said plate forms an annular groove into which said first annular part of said O-ring is received, the O-ring including a second annular part protruding from said groove for sealing engagement with the inner side of said body wall.
Dependencies are inferred from the claim text.