ADVANTAGES

Advantages of the Breech-LockThl des

- The overall exchanger is li- The intemal tubesheet-to-s- No cutting ofwelded parts (1

for maintenance- There is no need for hydraulic sioning devices to remove the channel cover and

reassemble the exchanger, thus eliminating the number of tightening cycles and strain gaugemeasurements

thinner channel) and easier to handleet can be tightened from the outside during operation

el diaphragm weld) is required to open the channel

1~~These advantages allow for easy operation and maintenance of the Breech-Lock closure ..·l·besc·•.uנ·_exchangers are easy to operate and comparatively easy to dismantle and reassembl'e, w

.results in more reliable operation and shorier shut down time

EASIER MAINTENANCE+ SHORTER SHUT DOWN TIME= HIGHER EFFICIENCY

EASYINSTALLATIONSPECIAL DISMANTLING JIG

IMBT., has developed a unique, proprietary jig assembly designed to facilitate. dismantling and

reassembling operations. With the IMB jig it is possible to open the channel, remove the intemals,

eassemble and reclose of the Breech-LockThf exchangers in a very short time without

ing supports, fine pitch adjustment screws, and

es. AII of tfiis, together with its ergonomic design,

for Breech-Lock exchangeF aintenance.

~onamac

.of 11le exchanger

US operation with no needזn()o

.ant facilities, such as cranes, etctןכן

e jig is lifted and positioned on the·.j::un:;.t.;;;;tingi' surface, opening the channel and~mo:;;;;,~:

,:,,;;mov.ingthe threaded ring and cover takes~~i$'::;::;:';;;'(

capproximately 10 minutes. The entire

sequence of activities :from completion of

,shut down to full disassembly of the intemals

can usually be performed in one to three

.hours depending on the size of the exchanger

A different version of the IMB jig is also

available for use with verticalBreech-Lockexchangers. ....

8"•• ;

==_~L-.-lM----

..

TECHNOLOGY

IteJmals offers exceptional maintenanG€ advantages over

Formerly adopted by IMB1M, the hydrostatic

pressure load is taken by the channel bodyand not by' heavy bolting (bolts are onlysized for gasket compression loading). Thisallows a relatively thin design of the channel'......;.

g) with consequent1no edgebendingdue 10 bol(.reduction in the exchanger's size and weight

- Avoid deformation of the intemal bolts,- Avoid overstressing of intemal push bolts,- The seal gasket, confined into the diaphragm, follows the relative movement of the

diaphragm with respect to the channel due to differential thermal expansion, thus guaranteeingthe sealing even during transient conditions.

DESIGN

APPLICATIONS & RELIABILITY

Koch Heat Transfer Coropany S.r.heat exchangers for many majorbeen in successful operation forBreech-Lock closure is suitab1

. .gas compreSSlOn,amrnomaIMB Breech- Lock exchangethan 1,000 Breech-Lock excKoch Heat Transfer.

Vertical Breech-Lock excllangers for Hydrocrackeresy of SHELL PERNISuUnit by co