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Quotes - Engineering - Sales| PRODUCT | STYLE | TEMA TYPE | BUNDLE |
| U-Tube Heat Exchanger | U-Tube, single tubesheet | BEU / AEU / BKU | Removable |
Custom U-Tube Heat Exchangers
Engineered to the Duty
The value of a custom build is that nothing has to be compromised to fit a catalog. Shell diameter, tube length, pass arrangement, baffle spacing, alloy, connection style and code package are all selected rather than accepted.
Thermal rating comes first. The unit is modeled against the full envelope, not a single design point: startup, normal, turndown and upset. Fouling factors are chosen from what the streams actually do rather than from a default table where we can help it.
Mechanical design follows. Code calculations, tubesheet thickness, nozzle reinforcement, support design and, where the site requires them, applied nozzle loadings, seismic and wind cases. Third-party inspection is arranged where the jurisdiction or the specification calls for it.
Accessories are designed in. Sight glasses, vacuum breakers, insulation jackets, annular distributors, spray balls, davit arms, lifting lugs and saddle supports work far better when they are part of the drawing than when they are added afterward.
Typical Construction
- Shell diameter: To approximately 48 inches, weight dependent
- Materials: Carbon steel, 304L/316L, duplex, Alloy 20, Monel, Hastelloy, AL-6XN, titanium
- Design pressure: To several thousand psi depending on service
- Tube joints: Rolled, roll-plus-seal-weld or strength welded
- Tubesheets: Single or double with vented interspace
- Connections: Sanitary clamp, ASME flanged, NPT or lap-joint
- Finishes: Mill, passivated, polished or electropolished
- Codes: ASME Section VIII, TEMA R/B/C, 3-A, ASME BPE, API 660, PED, CRN
- Site conditions: Client nozzle loadings, seismic and wind cases applied
- Accessories: Sight glasses, vacuum breakers, jackets, distributors, davit arms, supports
Custom U-Tube Heat Exchangers
U-TUBE • CONSTRUCTION
Stock Steam-to-Liquid
Stock two-pass steam-to-liquid U-tube heat exchangers in 304L and 316L. ASME hydro-tested and code stamped, tri-clamp process connections, shipping in
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U-TUBE • CONSTRUCTION
Two-Pass U-Tube Exchangers
Two-pass U-tube heat exchangers and multi-pass arrangements. Why a U-tube bundle is inherently even-pass, and what a temperature cross means for selec
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U-TUBE • CONSTRUCTION
Sanitary U-Tube
Sanitary U-tube heat exchangers in 316L with tri-clamp connections, drainable geometry and removable bundles. Built for 3-A duty and CIP circuits.
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What We Need to Start
Both fluids identified with flow rates, inlet temperatures and required outlet temperatures. Operating and design pressures on each side. Allowable pressure drop. Any code, alloy, hygienic or documentation requirement. Available space and the orientation you have room for.
Then the practical detail that changes designs: expected turndown, known fouling history, how the unit will be cleaned, and how much clearance exists to pull the bundle. If part of that is unknown, tell us which part. We would rather size against a stated assumption than a silent one.
Reverse Engineering an Existing Unit
A large share of custom work is replacing something that already exists, sometimes from a manufacturer who no longer does. Old drawings are ideal, the U-1 data report is nearly as good, and a clear nameplate photograph with measured dimensions is often enough.
Replacement is also the natural moment to fix what the original got wrong: upgrade the alloy, change the pass arrangement, add a vent that should always have been there. The fit stays the same; the exchanger gets better.
