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Quotes - Engineering - Sales| PRODUCT | STYLE | TEMA TYPE | BUNDLE |
| U-Tube Heat Exchanger | U-Tube, single tubesheet | BEU / AEU / BKU | Removable |
Stock Steam-to-Liquid U-Tube Exchangers
The Shelf Range and What It Covers
Stock steam-to-liquid exchangers exist for one reason: the gap between a unit failing and a replacement arriving is measured in production, not in dollars. A standard unit that ships tomorrow is worth considerably more than a perfect unit that ships in twelve weeks.
Standard construction. Two-pass U-tube bundle, 304L or 316L wetted parts, sanitary tri-clamp connections on the process side, built to TEMA C, ASME hydro-tested and code stamped. Removable bundle with O-ring or PTFE gasket sealing.
Where they fit. Hot water generation, CIP solution heating, tank heating, product warming, general plant utility duty and any sanitary steam heating application within the standard size and pressure range.
Where they do not. Anything needing an alloy above 316L, design pressures beyond the standard rating, a double tubesheet, electropolishing, a tight approach temperature, or a documentation package beyond the standard. Those are custom builds and the honest answer is to say so early.
Typical Construction
- Configuration: Two-pass U-tube, removable bundle
- Shell sizes: Small to mid-range diameters and lengths; ask for current list
- Wetted material: 304L or 316L stainless steel
- Process connections: Sanitary tri-clamp
- Utility connections: NPT or flanged
- Standard: TEMA C construction
- Code: ASME hydro-tested and code stamped
- Bundle sealing: O-ring or PTFE gasket
- Surface finish: Polished product contact; specify if a particular Ra is required
- Availability: Held in inventory; frequently ships next business day
Stock Steam-to-Liquid U-Tube Exchangers
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
Custom U-Tube Exchangers
Custom engineered U-tube heat exchangers built to your conditions. Thermal rating, third-party inspection, applied nozzle loadings, seismic cases and
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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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Rating a Stock Unit Against a Real Duty
Catalog surface area is not a duty. The same exchanger will deliver very different results depending on steam pressure, the liquid flow rate, the inlet temperature and how much pressure drop the process can spare.
We run stock units through the same thermal model as a custom build before quoting them. If the standard unit makes the duty with margin, that is the fastest and cheapest answer available. If it does not, we would rather tell you than let you discover it at startup.
Steam-Side Details That Decide Performance
Two things spoil steam-to-liquid exchangers more than anything else. The first is condensate that cannot leave, because a flooded exchanger loses surface progressively and looks exactly like fouling from the control room. Trap sizing and the drainage arrangement matter as much as the exchanger.
The second is control valve turndown. A modulating steam valve operating far below its designed range produces unstable temperature and, in the worst case, stall, where condensate cannot drain against the back pressure. Both are system problems rather than exchanger problems, and both are cheaper to address before installation.
