16 - 18 October 2018 // Nuremberg

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Shell & Plate Welded Heat Exchangers

LOGO_Shell & Plate Welded Heat Exchangers

Shell & Plate Welded Heat Exchangers

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Extending Capability Into Even Tougher Duties with Welded Heat Exchangers

The Tranter Shell & Plate Heat Exchanger(Download brochure.pdf )is designed as a performance upgrade over shell & tube, block-type welded and brazed aluminum heat exchangers. The exchanger offers high thermal performance with compact size, similar to that of gasketed plate heat exchangers, with low hold-up volume and low installed weight, especially when filled (Download technical article on comprehensive advantages.pdf).

Now in its second generation of refinement, today’s Shell & Plate Heat Exchanger is the fruit of Tranter’s Welded Competence Center in Artern, Germany. Combining field experience with design input from Tranter’s global R&D operations, this test bed of advanced manufacturing processes and equipment has introduced extended-capability refinements. We are now only beginning to explore the shell & plate exchanger’s potential in ever-more-difficult duties. In addition to design improvements, we have added larger plates and extended-thermal-length oblong plates to the product line.

Designed To Distribute Stress

The heart of the Tranter Shell & Plate Heat Exchanger is its heat transfer element, also called the plate core, composed of round or oblong chevron-type plates welded into a cassette by a porthole perimeter weld. Cassettes are then placed together welded to each other using a perimeter weld.

The thermal element subassembly then has metal shell-side flow diverters, nozzles and an end plate welded to it. An exclusive cage structure (see picture), welded only to the end cover, surrounds and supports the plate core pack assembly. The cage prevents any cantilever stresses from being transferred to the plate pack. The result is a pressure vessel of high integrity, with an accordion-like core that is highly tolerant of thermal expansion.

The construction is more robust than in gasketed units, shell & tube exchangers and welded block-type square welded units. There are no gaskets to replace or fail. There are no tubes to vibrate under upset flow conditions and induce stress to welds, baffles and supports, with early failure the result. The fully welded round or oblong design, involving both plate port and perimeter welds, is an optimal stress-distributing shape; there are no 90° corners and edges subject to stress failures as with block-type plate heat exchangers.

Field-Proven Durability

Operational durability has been outstanding. Units shipped after passing our factory standard pressure and helium leak tests have logged an extremely low failure rate in the field. Additional available manufacturing process NDEs include:
  • Dye penetrant examination (all weld joints)
  • X-ray (applicable weld joints)
  • UT (applicable weld joints)
  • Helium Mass Spectrometer (entire unit)
Duty-Matched Materials

Plate materials may be Type 316L stainless steel, titanium or other alloys; shells may be fabricated of carbon steel, Types 304, 316, 316L stainless and titanium. The unit can be fabricated from dissimilar metals when only one side will be exposed to corrosive conditions.

MAXCHANGER® Mini-Welded Plate Heat Exchangers

LOGO_MAXCHANGER® - der geschweißte Mini-Wärmeübertrager

Plate Heat Exchangers

LOGO_Plattenwärmeübertrager

Prime Surface Heat Exchangers

LOGO_Doppelwandige Wärmeübertrager

Spiral Heat Exchangers

LOGO_Spiralwärmeübertrager

Shell & Plate Welded Heat Exchangers is assigned to following product groups:

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