Work / Reference configurations

Reference assembly routes

Three equipment configurations show how manufacturing questions are organised around the customer's design: what must stay fixed, what needs access, what gets made first and what is checked before delivery.

Illustrative complete horizontal skid-mounted finned-tube assembly
Ordered finned-tube bundle before integration

These configurations illustrate how manufacturing decisions are organised. They are not named customer projects and carry no implied duty, size, material, tolerance, certification or delivery claim.

Complete rectangular finned-tube coil module inside a welded frame Detailed view of ordered fins and tubes in the rectangular module Flange, frame corner and mounting foot detail on the module

A / Framed coil module

Compact interfaces, visible structure

Customer input
Approved thermal design, overall envelope, connection positions and installation interfaces.
Manufacturing questions
Tube-bank handling, header access, flange orientation, frame sequence and datum retention.
Manufactured scope
Finned-tube bank, headers and connections, welded support frame, fit-up and final integration as agreed.
Inspection basis
Interfaces and manufacturing checks defined by the agreed drawings and quotation.
Delivery state
Assembly boundary and protection agreed for the order.
Illustrative tube bundle staged on temporary supports before frame insertion
A1 / Bundle stateUse the supported group to discuss alignment, temporary restraint and the open path into structure.
Illustrative completed header and connection group on a supported assembly
A2 / Interface groupKeep nozzles, flange faces, tube entry and support relationships visible before final protection.
Complete horizontal finned-tube process assembly on a support base Header, tube entry and weld-area detail on the horizontal assembly Saddle, gusset and installation-interface detail

B / Horizontal process assembly

Long geometry, controlled datums

Customer input
Overall arrangement, connection interfaces, support locations and governing requirements.
Manufacturing questions
Header fit-up, support datum strategy, joining sequence, restraint and final alignment access.
Manufactured scope
Finned-tube bank, end connections, support base and integrated equipment assembly as agreed.
Inspection basis
Staged interface checks tied to the agreed fabrication route.
Delivery state
Protected complete assembly or agreed split scope for installation.
Illustrative complete side view showing exchanger interfaces and supports
B1 / Side interface mapTrace mounting points, supports, openings and customer-controlled connections across the full length.
Large finned-tube exchanger assembly in progress inside a welded frame
B2 / Assembly stateKeep the frame, connections and working access visible while the route is still adjustable.
Compact skid-mounted finned-tube exchanger with integrated manifold and frame Connection alignment being checked on the compact assembly Finished exchanger protected on a shipping skid

C / Compact skid assembly

Dense integration without losing access

Customer input
Skid envelope, process interfaces, maintenance constraints and intended installation state.
Manufacturing questions
Access between banks, manifold sequence, frame integration, lifting space and connection checks.
Manufactured scope
Multiple finned-tube banks, manifold connections, support structure and integrated skid assembly.
Inspection basis
Agreed interface, fit-up and delivery-state checks.
Delivery state
Complete skid protected around exposed fins, open ends and flange faces.
Illustrative compact assembly with two parallel finned-tube bundles
C1 / Parallel bundlesSeparate support and connection paths while preserving access between the two banks.
Illustrative complete finned-tube unit emphasizing headers and connections
C2 / Header-led unitCoordinate manifold orientation, face access and frame clearance from the compact end view.
Illustrative complete exchanger restrained on a transport base
C3 / Protected handoffDefine where the permanent frame bears, where restraints attach and which interfaces remain covered.

Route framework / Illustrative states

Compare the manufacturing decisions, not fictional project stories

The route images now sit beside the configuration they explain. The comparison below keeps their scope, decision and delivery questions aligned. Each route remains illustrative, drawing-dependent and subject to customer approval.

Input package

Identify the controlling arrangement, interfaces, support intent, required delivery state and the customer decisions that cannot move. A reference route is useful only when those boundaries stay visible.

Include the current drawing revision, quantity, requested material basis, customer-supplied parts and installation constraints. If a route represents only one part of the order, mark where the manufacturing responsibility starts and stops.

Manufacturing difficulty

Long geometry, dense connections and nested structure create different access and restraint problems. The route should show when temporary support is introduced and when it can be removed.

The difficulty is often a relationship rather than a component: a flange that cannot be reached after the frame closes, a support that competes with bundle insertion or a datum that disappears after joining.

DFM decision

Proposed changes are linked to the affected interface, sequence consequence and approval owner. The image illustrates the question; the accepted drawing remains the authority.

A useful decision states the proposed detail, why it improves buildability, what customer requirement remains unchanged and which downstream drawing, fixture, check point or scope note must be updated.

Delivery boundary

State what arrives complete, protected, loose or prepared for later work, together with the agreed records. Do not infer testing, certification or customer history from the configuration.

Protection follows the real vulnerability and load path. Covers protect faces and openings, bridge elements shield fins, and restraints connect to robust frame points. The quotation defines any records or separate items included at handoff.

Route comparison

Three configurations, five manufacturing questions

The labels below are working comparison prompts. They do not establish fixed product families or imply that any illustrated unit was manufactured for a customer.

DecisionFramed moduleHorizontal skidCompact multi-bank
Customer inputRectangular envelope, side connection positions, mounting faces and service-clearance requirements.Overall length, end interfaces, saddle or support intent and installation datum supplied by the customer.Skid envelope, bank arrangement, manifold interfaces and access required between adjacent groups.
Main manufacturing issueInsert the bank without damaging fins while preserving access to side headers and frame nodes.Control long-axis relationship through support fabrication, connection fit-up, joining and handling.Sequence dense components so one bundle, manifold or brace does not block work on the next.
DFM decisionAgree open-side strategy, temporary carrier points, connection sequence and final mounting reference.Agree working datums, staged support, joining direction and the point for interface rechecks.Agree bank order, independent support paths, manifold sequence and clearance for tools and checks.
Useful check windowFrame before insertion, bank after restraint, side faces after connection work and mounting points before protection.Base before equipment, end faces after fit-up, key interfaces after joining and complete length before handoff.Each bank before the next closes access, manifold faces after fit-up and final support relationships before restraint.
Agreed delivery stateComplete module or defined split scope with vulnerable faces, openings and fins protected.Complete supported assembly or agreed installation modules, with loose items and records identified.Integrated skid or stated partial assembly, with handling points and customer-controlled interfaces preserved.

How to use a reference route

Choose the route that exposes the closest manufacturing relationships, then replace its assumptions with the actual project drawings. Mark where your geometry differs, which interfaces are fixed and what delivery state you need priced. The comparison is most useful when it narrows the first review to a small set of access, support, sequence and scope decisions.

Do not select a route as if it were a standard product. The customer remains responsible for equipment intent and thermal design. StelTherm reviews whether the requested configuration can be fabricated, assembled, checked and protected within the agreed manufacturing scope.

Use the comparison to expose consequences, not to copy geometry. A different nozzle direction may change fit-up access; a revised support may compete with bundle insertion; a split delivery state may move protection and checking earlier in the route. Record those differences against the controlling drawings, then identify which detail, fixture, sequence note or scope assumption must change. The selected reference stops being useful wherever the actual arrangement creates a different load path, access window, datum or assembly boundary.

A route becomes a publishable case only after the product facts, manufactured scope, images, customer permissions and project narrative are verified for public use.

Compare / Handoff states

Drawing state, assembly state, verification state

The useful record is not a decorative timeline. It is the chain of agreed decisions that connects design intent to the delivered manufacturing state.

Manufacturability review package with drawing and physical components
01 / Review and agreed redlines
Illustrative complete exchanger integrated with tube banks, connections and frame
02 / Controlled assembly state
Inspector documenting dimensions and interfaces on a complete exchanger
03 / Agreed interface verification

Your configuration

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