Company : SAREL ENGINEERS
City : Mumbai

Name of the PRODUCT: Double Tube Sheet Tube Expansion

PRODUCT Code : S-14

Description/Specification of the PRODUCT :

This is the most challenging tube expansion work for inner tube sheet tube expansion. Following points must be observed before starting tube expansion of double tube sheet tube expansion.

1. All the dimensions of inner tube sheet hole must be checked 100% and recorded in the direction of 90 degree and 0 degree by bore dial gauge.

2. All the tube sheet hole and tube OD must be cleaned by acetone before tube insertion.

3. Deviated tube sheet hole to be attended separately according to the simulated mock-up hole qualification.

4. Do not alter the expansion parameters once established on mock-up during tube expansion on the job.

Parameters: A) Type of Expander B) Drivegun C) Torque Control setting

10% of total no. of holes on the trial block should be kept aside to qualify the tube expander tooling to be used on the job which will be qualified and kept ready to use on the job.

Check the tube expansion after every five expansion operations and understand the behavior of operating expander. Use alternate expander using cooled tube expander from the solvent approved by the customer.

For Titanium, monal and SS Tube expansion, use sulphur and chlorine free lubricants as approved. Uniform tightness is only possible by using torque control tube expansion unit which is qualified for above work.

Sarel undertake expansion and consultation of such jobs.