Replacement engineering · Plate & shell heat exchanger
Vahterus Plate & Shell Drop-In Replacement
One-for-one replacement of PSHE 4LL units with matched nozzles, supports, flanges and installation dimensions.
Project summary
Challenge
Replace aging imported PSHE 4LL-76/1/1 and 4LL-154/1/1 units without modifying site piping or supports.
Engineering response
Custom units were engineered around the original nozzle orientation, flange interfaces, support positions and installed envelope.
Outcome
The drop-in strategy reduces site work, avoids piping changes and provides a supported replacement route.
- PSHE 4LL-76/1/1
- PSHE 4LL-154/1/1
- Matched installation dimensions
- No piping modification
Original project record
1:1 Replacement of VAHTERUS Plate & Shell Heat Exchangers
HEXNOVAS provided a fully interchangeable replacement solution for existing VAHTERUS Plate & Shell® heat exchangers, helping the customer reduce purchasing cost, shorten delivery time, and avoid expensive site modification.
Project Highlights
- ✓ Original VAHTERUS PSHE units replaced 1:1
- ✓ Same nozzle orientation and flange connection
- ✓ No pipework or foundation modification required
- ✓ Significant cost and lead-time saving
- ✓ Thermal and mechanical performance re-checked
Replacing Aging Imported Plate & Shell Heat Exchangers
The customer’s existing equipment was originally supplied by VAHTERUS and had been operating on site for many years. During maintenance planning, the customer required a replacement unit that could be installed directly into the existing system.
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Original images from this HEXNOVAS record
