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Quotes - Engineering - SalesIndustrial U-Tube Heat Exchangers
These are ASME code stamped units built to TEMA R, B or C depending on the severity of the service, in materials from carbon steel through duplex, Alloy 20, Hastelloy and titanium. Shells run to roughly 48 inches, above which a removable bundle becomes a handling problem rather than a maintenance feature. Nozzle loadings, seismic cases and site-specific requirements are applied as specified rather than assumed.
- Free thermal expansion. No expansion joint, no floating-head seal. Each tube grows independently, which is why U-tube units dominate steam and hot oil service.
- Removable bundle. The shell side can be hydroblasted and inspected. On fouling shell-side duty this is the difference between maintainable and disposable.
- High pressure capability. One fewer pressure-boundary joint at the rear than a floating head, which is why U-tube wins as tube-side pressure climbs.
- Broad alloy range. Carbon steel, 304L and 316L, duplex, Alloy 20, Monel, Hastelloy, AL-6XN and titanium, selected against the film chemistry rather than the bulk.
- TEMA class to suit. Class R for severe refinery service, B for chemical process, C for general commercial. The class sets construction rigour, not geometry.
- Practical maintenance. Davit arms, inspection ports, saddle supports and lifting lugs specified so the unit can actually be serviced where it sits.
High-Pressure U-Tube:
U-Tube Construction
- Removable bundle
- Free thermal expansion
- ASME code available
High-Temperature U-Tube:
U-Tube Construction
- Removable bundle
- Free thermal expansion
- ASME code available
Corrosion-Resistant U-Tube:
U-Tube Construction
- Removable bundle
- Free thermal expansion
- ASME code available
Industrial U-Tube Heat Exchangers
Where U-Tube Beats the Alternatives Industrially
Three conditions push a selection toward U-tube construction, and industrial duty produces all three regularly. A large or cycling temperature difference between shell and tubes, which a fixed tubesheet unit can only handle with an expansion joint. A fouling shell-side stream that needs mechanical cleaning. And high tube-side pressure, where the absence of a rear pressure-boundary joint is worth real money.
The condition that rules it out is a fouling tube-side stream, because the bend cannot be rodded. When we see that combination we will recommend a floating head or a fixed tubesheet unit instead, even though it is not what this site sells.
Sizing Against the Real Envelope
Industrial exchangers fail on the conditions nobody wrote down: startup transients, upset cases, seasonal cooling water temperature, and the turndown that happens when the plant runs at sixty percent for a year.
The design point is the easy part. Tell us the range, the fouling history of the streams, and what happens during a trip, and the resulting exchanger will be sized for the plant you actually operate.
Industrial U-Tube Heat Exchangers
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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U-TUBE • CONSTRUCTION
Pharmaceutical U-Tube
Pharmaceutical U-tube heat exchangers built to ASME BPE with documented welds, controlled dead legs, double tubesheets and a qualification-ready docum
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U-TUBE • CONSTRUCTION
Stock & Custom Units
Stock and custom U-tube heat exchangers. Shelf units in standard sizes that ship in days, or an engineered build rated against your actual operating e
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