Sleeve to tubesheet expander tool

Details Sleeve to tubesheet expander tool Sleeve to tubesheet expander tool

1987-09-24

1988-10-25

Combs, E. Michael

Metal working

Means to assemble or disassemble

Heat exchanger

29237, 72 58, B23P 1526, B21D 3904, B21D 3908

Patent

active

047793333

ABSTRACT:
A pressurizable tool adapted for expanding a close-fitting sleeve into a tube in a tubesheet. The tool includes a housing containing an axially movable piston and a forward reduced diameter portion and having an elastic expander unit for inserting into the sleeve and tube in a tubesheet. The expander unit consists of at least two elastic rings composed of a polyurethane elastomer material and each having a chamfer provided at the outer edge of the unit forward and rear faces. By pressurizing a port at the housing front end, the piston is moved rearwardly to axially compress and expand the expander rings radially outwardly sufficiently to expand the sleeve firmly into the tube and provide a pressure tight seal therebetween. Following such expansion of the sleeve, the piston is pressurized and moved forward to release the compression on the expander unit rings, so that the tool can be easily withdrawn from the expanded sleeve and tube and inserted into another sleeve and tube for repeated usage.

REFERENCES:
patent: 2458854 (1949-01-01), Hull et al.
patent: 4006619 (1977-02-01), Anderson
patent: 4418457 (1983-12-01), Mueller
patent: 4567631 (1986-02-01), Kelly
patent: 4694677 (1987-09-01), Rabe

Affiliated with

Also associated with

Rating

Sleeve to tubesheet expander tool does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sleeve to tubesheet expander tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sleeve to tubesheet expander tool will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2261202