Design library

Our designs, in motion

We model every unit in 3D before it is fabricated, and we animate the ones worth walking through. It means a design review can happen on screen — nozzle orientations, bundle access, jacket arrangement — instead of on the shop floor when it is expensive to change.

Equipment designs

Our equipment designs

Every unit below was built as a full 3D model before fabrication. Each carries its TEMA designation where it has one, what the configuration is for, and where it is typically used. Click any image to see it full size.

MechaMatic air-cooled heat exchanger: finned tube bundle and plenum carried on a braced steel support frame — **Air-Cooled Heat Exchanger (ACHX)** Rejects process heat straight to ambient air through a finned tube bundle, so no cooling water, tower or water treatment is needed. Used for process and gas cooling, condensing and lube-oil cooling wherever water is scarce or expensive.

CEU shell and tube heat exchanger with a channel head, bolted girth flange, large flanged nozzles and saddle supports — **CEU Heat Exchanger** TEMA CEU: channel integral with the tubesheet (C), one-pass shell (E), U-tube bundle (U). Compact and economical, with a bundle that withdraws for shell-side cleaning. Suits general process and utility duty on a clean tube-side fluid.

Tube bundle viewed end-on showing the drilled tubesheet face with pass-partition grooves and the baffled bundle behind — **Tubesheet and Tube Bundle** The tubesheet is the drilled plate the tubes are expanded or welded into. It separates the two fluids and carries the full pressure difference between them; the grooves across the face seat the pass partition that creates multiple tube passes.

U-tube bundle showing the concentric U-bends at the free end and the transverse baffles supporting the tubes — **U-Tube Bundle** Tubes bent back on themselves, so only one tubesheet is needed and nothing restrains thermal growth. Handles a large temperature difference without an expansion joint. The bend cannot be mechanically cleaned, so it suits a clean tube-side fluid.

BHU shell and tube heat exchanger with a bonnet head, bolted girth flange, shell nozzles and saddle supports — **BHU Heat Exchanger** TEMA BHU: bonnet head (B), double split-flow shell (H), U-tube bundle (U). The split-flow shell roughly halves shell-side pressure drop for the same flow, so it is chosen when allowable shell-side pressure drop is the binding constraint — commonly on vapour and low-pressure gas service.

BKU kettle reboiler showing the enlarged kettle shell with a conical transition and the vapour outlet nozzle on top — **BKU Kettle Reboiler** TEMA BKU: bonnet head (B), kettle-type shell (K), U-tube bundle (U). The enlarged shell creates vapour space above the bundle so boiling liquid is not carried over into the vapour outlet. Used as a column reboiler, vaporiser or steam generator.

BEU shell and tube heat exchanger with a bonnet head, bolted joint, top nozzles and saddle supports — **BEU Heat Exchanger** TEMA BEU: bonnet head (B), one-pass shell (E), U-tube bundle (U). The most widely used removable-bundle configuration — economical, tolerant of large temperature differences, and the bundle pulls out for shell-side cleaning. Standard for liquid–liquid duty and steam heating.

AKT kettle reboiler with a bolted channel cover, conical kettle shell transition, flanged connections and saddle supports — **AKT Kettle Reboiler** TEMA AKT: channel with a removable flat cover (A), kettle-type shell (K), pull-through floating head (T). The bolted cover reaches the tube ends without disturbing the pipework, and the floating head lets the whole bundle be withdrawn, so both sides can be cleaned and inspected. For reboiling and vaporising where fouling is expected.

Vertical phase separator model showing the nozzle arrangement around the shell, the top head with access opening and the base support ring — **Phase Separator** Separates a mixed stream into its phases by gravity, using internals such as an inlet diverter, mist eliminator and weir. Splits gas from liquid, or gas, oil and water in a three-phase unit — sited upstream of compressors, pumps and flares to keep liquid out of equipment that cannot tolerate it.

Equipment walkthroughs

From our YouTube channel

Click any video to play. Subscribe on @MechaMatic for new designs as we publish them.

TEMA BEU Heat Exchanger — Manufacturer Overview

A full walkthrough of a bonnet-head, single-pass-shell, U-tube exchanger: the pass partition, the stationary tubesheet, the concentric U-bends and the segmental baffles that drive shell-side crossflow.

Shell & tube detail

Air-Cooled / Fin-Fan Heat Exchanger (ACHX)

The finned tube bundle, plug-type header boxes, plenum chamber and axial fan arrangement of a forced-draught air cooler — the configuration that removes cooling water from the equation entirely.

Air-cooled detail

ASME-Compliant Pressure Vessel

Head geometry, nozzle reinforcement, saddle and support detailing on a vessel designed to ASME VIII Div. 1 rules — including the access provisions that make it inspectable in service.

Pressure vessel detail

RainFlow Vessel

A walkthrough of the internal flow arrangement, showing how the distribution inside the vessel is organised to achieve the intended separation and flow path.

Pressure vessel detail

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Why we model everything

Changing a drawing is cheap. Changing a weldment is not.

Clash detection

Nozzles that foul the support, flanges that cannot be bolted up, manways that open into a wall — all found in the model rather than on site.

Maintenance access

We check the bundle pull length, the manway reach and the bolt clearance in 3D, so “maintainable” is something we have verified rather than assumed.

Stakeholder review

Operators and maintenance staff can comment on an animation in a way they cannot on a 2D general arrangement drawing.

Fabrication clarity

The shop works from an unambiguous model, which cuts rework and questions during fabrication.

Tender support

A visual submission alongside the calculations makes a technical bid far easier for a client's engineering team to evaluate.

Training material

The same model becomes an operator training aid and a reference for future maintenance planning.

Want your unit modelled before it is built?

Design review in 3D is part of how we work, not an extra.

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