Est Group, Inc.

Andrew Hall

Alex Kotlyar

Ka'ren Sarkissian

Danko Kobziar

Ka′ren Sarkissian

Michael Hvorecny

A method of tube plug installation in a heat exchanger or pressure vessel is provided. The method includes verifying the suitability of a selected tube plug with a specifically identified type of heat exchanger or pressure vessel before installation of the selected tube plug. The step of verifying being performed with a device having an app, software, or user interface and after having entered or accessed data concerning the selected tube plug and entering or accessing data concerning the specifically identified type of heat exchanger or pressure vessel and operating parameters of the specifically identified type of heat exchanger or pressure vessel.

Heat exchanger tube plug installation

According to an aspect of the present invention, a method of tube plug installation in a heat exchanger or pressure vessel is provided. The method includes verifying the suitability of a selected tube plug with a specifically identified type of heat exchanger or pressure vessel before installation of the selected tube plug. The step of verifying being performed with a device having an app, software, or user interface and after having entered or accessed data concerning the selected tube plug and entering or accessing data concerning the specifically identified type of heat exchanger or pressure vessel and operating parameters of the specifically identified type of heat exchanger or pressure vessel.

A pin and ring-type plug assembly for plugging a heat exchanger tube to provide a leak resistant seal is provided. The plug assembly is designed such that it can be used to form a high-pressure seal relative to a wide of range of tube inner diameters. The angle of taper of the pin varies along a length of the pin such that the angle of taper is steepest at or adjacent a nose section of the pin and is shallowest at or adjacent an end section of the pin.

Plug assembly

A pneumatic test gun for use in performing a leak test on a tube is provided. The pneumatic test gun has a handle for being manually gripped by an operator, a distal end portion for insertion into a tube to be tested, and a proximal end plate from which the distal end portion extends and which is adapted to be abutted against an open end of the tube to be tested. The distal end portion includes a support tube providing a flow path for compressed air into a tube to be tested, a longitudinally-compressible and radially-expandable annular seal located on the support tube, and a self-activating retaining element assembly adapted for radial-expansion into engagement with an inner diameter of the tube to be tested to improve retention of the distal end portion within the tube when the tube is pressurized during a leak test. A method is also provided.

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Perkasie, PA, United States of America

Andrew Hall