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Subfield / Retained research

Design archive.

Original source studies stay available as the product evolves. The current direction is one retrofit-only platform; manufactured tank shells are deferred, and earlier geometry is not automatically applicable to the retrofit.

Explore the current platform

Selected references

Understand the source.
Respect the revision.

The controller baseline and connection studies retain their stated scope. Optional treatment studies remain separately gated. No source document establishes a released retrofit configuration.

Models, mechanisms and analysis

Find a research record.

104 of 104 studies

Historical names, geometry and calculations are preserved for context. They are not active tank offerings, field instructions or demonstrated treatment results.

Engineering record

Controls / Current architecture / mechanical interface

Control platform

Industrial supervision, deterministic tank control and reusable PoE sensing. Fixed carriers replace the oversized moving-board direction.

Subfield Link · R9 termination

Connections / Development CAD

Link threaded stops

Inspect the latest complete termination geometry with modeled threaded stops.

SUB1500 · R36 exterior

Product family / Development CAD

Current product family

The six main product portraits from the R36 CAD presentation.

SUB1500 — Exterior hero. Development CAD; not a manufacturing release.

Product family / Design study

Six-product CAD gallery

Exterior, rear, cutaway and service views for four tank models, Control and Alarm.

Engineering record

Product family / Design study

Design completion review

A request-by-request record of visual coverage and unfinished physical engineering.

CAD cutaway showing fitted partition

Tank & access / Design study

Standard tank partitions

Layered partition fit studies for SUB1500 and SUB2000.

Simplified SUB1500 CAD model with ice blue badge

Tank & access / Design study

Two-size tank family

Four planned models, with separate 1,500- and 2,000-gallon body envelopes.

Subfield Control native CAD render

Controls / Design study

Control fascia attachment

Controller and alarm face studies with visible service hardware.

Installed stops — six displayed CAD mechanism parts

Connections / Design study

Link sleeve stops

Radial shoulder stops capture the sleeve around a proposed 3 mm release motion.

Integral receiver with rounded bayonet boss roots

Connections / Design study

Link integral receiver

Integral bosses replace separate bayonet studs.

Forward sealing spigot, receiver and relieved dielectric in exploded arrangement

Connections / Design study

Link gland margin

A wider groove studies dimensional variation and seal-volume growth.

Forward sealing spigot, receiver and relieved dielectric in exploded arrangement

Connections / Design study

Link forward seal

The mated seal moves beyond the longitudinal keyways.

Engineering record

Tank & access / Calculated study

Tank capacity study

An empty-cavity calculation examines headspace and displacement reserves.

Simplified SUB1500 CAD model with ice blue badge

Product family / Design study

Continuous tank casing

Four exterior CAD studies with shallower panels and no separate corner guards.

Revised SUB1500 CAD model with ice blue badge

Product family / Design study

Protective tank geometry

Four CAD-driven exterior concepts with sculpted guards and tapered access towers.

SUB1500 protective-case tank with ice blue model badge

Product family / Appearance study

Protective tank appearance

AI-rendered appearance concepts for the planned standard and engineered tanks.

Subfield graphite cable, tapered strain relief, orange identity band, mated connector and separate cap

Connections / Design study

Subfield Link

The cable, conductors, keyed connector and strain relief developed as one system.

Retaining groove exposed with C-ring displaced for visibility

Connections / Design study

Link collar retention

A seated retaining ring closes a nominal retention gap in the original connector.

Connector mechanical interface inspection

Connections / Design study

Link retaining-ring interface

A catalog-derived ring envelope and proposed tolerance basis advance the connector.

Core / closed

Controls / Design study

Core enclosure mechanics

Seal groove, captive closure and a pinned cover for the exterior Core enclosure.

Subfield tank in graphite with an orange identity band

Tank & access / Design study

Recessed tank shell

The rectangular shell, repeated recesses and two dedicated access assemblies.

Physical stock and modeled connections

Tank & access / Calculated study

Dual-opening roof analysis

A connected elastic-demand study tied to the recessed-shell tank geometry.

Tank / revised primary access

Tank & access / Design study

Primary access

A revised round throat, cover, guard and permanent access frame.

Tank / original underside saddles

Tank & access / Design study

Body handling

Original underside saddles studied against the permanent tank frame.

Protected side indicator

Tank & access / Design study

Installation datums

Four protected indicators tied to a common lower-body datum.

Tank / inlet end

Connections / Design study

Tank pipe mounts

Reinforced inlet and outlet interfaces fitted to actual tank wall cuts.

Seated / outlet unconnected

Treatment & service / Design study

Coarse screen

A perforated cartridge, capture mechanism and contained-removal geometry.

Parked / controls below the guard

Treatment & service / Design study

Screen grade controls

Long controls, capture hardware and the screen extraction arrangement.

Connected transfer candidate

Treatment & service / Design study

Screen transfer

A removable bridge and vented transfer arrangement around the coarse screen.

Receiver / assembled

Treatment & service / Design study

Gravity receiver

Receiver, media-stage and coupling studies with explicit hydraulic limits.

Receiver / revised socket

Treatment & service / Design study

Receiver isolation

Socket, poppet and replaceable cartridge geometry for receiver servicing.

Core / Assembled

Product family / Design study

Graphite product family

Thirteen standalone product groups with assembled and service views.

One CAD concept, assembled

Product family / Design study

Original product family

The original tank, control, treatment and service product collection.

One / assembled

Product family / Design study

Complete model library

The broad collection of tank, control, flow and service studies.

One / assembled

Product family / Design study

Integrated design review

A visual review of the product family and successive tank-integrated mechanisms.

Tank in graphite and Subfield orange; proposed form and finish

Product family / Appearance study

Appearance direction

Four illustrative boards exploring graphite forms and Subfield orange.

Core / Assembled

Controls / Standalone CAD study

Core

Exterior control panel. Explore the standalone CAD and its design scope.

Tank Hub / Assembled

Controls / Standalone CAD study

Tank Hub

Stationary service cartridge. Explore the standalone CAD and its design scope.

Alarm / Assembled

Controls / Standalone CAD study

Alarm

Independent alarm enclosure. Explore the standalone CAD and its design scope.

Field Node / Assembled

Controls / Standalone CAD study

Field Node

Field interface enclosure. Explore the standalone CAD and its design scope.

Adapter / Assembled

Controls / Standalone CAD study

Adapter

Identified equipment interface. Explore the standalone CAD and its design scope.

Field Filter / Assembled

Treatment & service / Standalone CAD study

Field Filter

Pressure-filter housing study. Explore the standalone CAD and its design scope.

Screen / Assembled

Treatment & service / Standalone CAD study

Screen

Contained cartridge service study. Explore the standalone CAD and its design scope.

Treat / Assembled

Treatment & service / Standalone CAD study

Treat

Retrievable carrier and cassette. Explore the standalone CAD and its design scope.

Access / Assembled

Treatment & service / Standalone CAD study

Access

Service riser and closure. Explore the standalone CAD and its design scope.

Pump Dock / Assembled

Treatment & service / Standalone CAD study

Pump Dock

Guided retrieval interface. Explore the standalone CAD and its design scope.

Connect / Assembled

Treatment & service / Standalone CAD study

Connect

Three physical class-key studies. Explore the standalone CAD and its design scope.

Sense Mount / Assembled

Treatment & service / Standalone CAD study

Sense Mount

Replaceable instrument carrier. Explore the standalone CAD and its design scope.

Service Kit / Assembled

Treatment & service / Standalone CAD study

Service Kit

Technician carry-case study. Explore the standalone CAD and its design scope.

Access Risers R1 / access evidence and mass

Engineering records / Engineering record

Access Risers R1

Geometry, analysis and remaining engineering work for Access Risers R1.

Angular Seat Interface Study / section

Engineering records / Engineering record

Angular Seat Interface Study

Geometry, analysis and remaining engineering work for Angular Seat Interface Study.

Engineering record

Engineering records / Engineering record

Assembly Mass R1

Geometry, analysis and remaining engineering work for Assembly Mass R1.

Engineering record

Engineering records / Engineering record

Backbone Fabrication R1

Geometry, analysis and remaining engineering work for Backbone Fabrication R1.

Engineering record

Engineering records / Engineering record

Base Contact R1

Geometry, analysis and remaining engineering work for Base Contact R1.

Base Frame R1 / assembled

Engineering records / Engineering record

Base Frame R1

Geometry, analysis and remaining engineering work for Base Frame R1.

Base Trays R1 / assembled

Engineering records / Engineering record

Base Trays R1

Geometry, analysis and remaining engineering work for Base Trays R1.

Engineering record

Engineering records / Engineering record

Cable Ring Installation Audit

Geometry, analysis and remaining engineering work for Cable Ring Installation Audit.

Engineering record

Engineering records / Engineering record

Cable Seal Audit

Geometry, analysis and remaining engineering work for Cable Seal Audit.

Core Barrier Study / inspection

Engineering records / Engineering record

Core Barrier Study

Geometry, analysis and remaining engineering work for Core Barrier Study.

Core Carrier Formed R9 / inspection

Engineering records / Engineering record

Core Carrier Formed R9

Geometry, analysis and remaining engineering work for Core Carrier Formed R9.

Core Compartment Barrier R6 / inspection

Engineering records / Engineering record

Core Compartment Barrier R6

Geometry, analysis and remaining engineering work for Core Compartment Barrier R6.

Core Divider Retention R5 / inspection

Engineering records / Engineering record

Core Divider Retention R5

Geometry, analysis and remaining engineering work for Core Divider Retention R5.

Core Divider Retention Study / inspection

Engineering records / Engineering record

Core Divider Retention Study

Geometry, analysis and remaining engineering work for Core Divider Retention Study.

Core Faceplate Support Study / inspection

Engineering records / Engineering record

Core Faceplate Support Study

Geometry, analysis and remaining engineering work for Core Faceplate Support Study.

Core Faceplate Supports R4 / inspection

Engineering records / Engineering record

Core Faceplate Supports R4

Geometry, analysis and remaining engineering work for Core Faceplate Supports R4.

Core Lock Clearance R10 / inspection

Engineering records / Engineering record

Core Lock Clearance R10

Geometry, analysis and remaining engineering work for Core Lock Clearance R10.

Core R0 / assembled

Engineering records / Engineering record

Core R0

Geometry, analysis and remaining engineering work for Core R0.

Engineering record

Engineering records / Engineering record

Core Rear Mount Fit R1

Geometry, analysis and remaining engineering work for Core Rear Mount Fit R1.

Core Rear Mount R7 / inspection

Engineering records / Engineering record

Core Rear Mount R7

Geometry, analysis and remaining engineering work for Core Rear Mount R7.

Core Rear Mount R8 / inspection

Engineering records / Engineering record

Core Rear Mount R8

Geometry, analysis and remaining engineering work for Core Rear Mount R8.

Core Rear Mount Study / inspection

Engineering records / Engineering record

Core Rear Mount Study

Geometry, analysis and remaining engineering work for Core Rear Mount Study.

Core Tray Mounts R3 / inspection

Engineering records / Engineering record

Core Tray Mounts R3

Geometry, analysis and remaining engineering work for Core Tray Mounts R3.

Distributor Collection Fixture R1 / inspection

Engineering records / Engineering record

Distributor Collection Fixture R1

Geometry, analysis and remaining engineering work for Distributor Collection Fixture R1.

Engineering record

Engineering records / Engineering record

Fitted Roof Analysis R1

Geometry, analysis and remaining engineering work for Fitted Roof Analysis R1.

Formed Vessel R1 / recess section reference

Engineering records / Engineering record

Formed Vessel R1

Geometry, analysis and remaining engineering work for Formed Vessel R1.

Frame Joints R1 / assembled

Engineering records / Engineering record

Frame Joints R1

Geometry, analysis and remaining engineering work for Frame Joints R1.

Engineering record

Engineering records / Engineering record

Laminate Roof R1

Geometry, analysis and remaining engineering work for Laminate Roof R1.

Engineering record

Engineering records / Engineering record

Manufacturing Coverage R3

Geometry, analysis and remaining engineering work for Manufacturing Coverage R3.

Engineering record

Engineering records / Engineering record

Manufacturing Handoff

Geometry, analysis and remaining engineering work for Manufacturing Handoff.

Media Hydraulics R1 / hydraulic sensitivity

Engineering records / Engineering record

Media Hydraulics R1

Geometry, analysis and remaining engineering work for Media Hydraulics R1.

Post Stability R1 / post stability review

Engineering records / Engineering record

Post Stability R1

Geometry, analysis and remaining engineering work for Post Stability R1.

Process Partitions R1 / compartments and access

Engineering records / Engineering record

Process Partitions R1

Geometry, analysis and remaining engineering work for Process Partitions R1.

Engineering record

Engineering records / Engineering record

Pump Duty Basis R1

Geometry, analysis and remaining engineering work for Pump Duty Basis R1.

Roof Access Review R01 / assembled

Engineering records / Engineering record

Roof Access Review R01

Geometry, analysis and remaining engineering work for Roof Access Review R01.

Roof Bearings R1 / assembled

Engineering records / Engineering record

Roof Bearings R1

Geometry, analysis and remaining engineering work for Roof Bearings R1.

Roof Deck R1 / local deck elastic review

Engineering records / Engineering record

Roof Deck R1

Geometry, analysis and remaining engineering work for Roof Deck R1.

Engineering record

Engineering records / Engineering record

Roof Grillage R1

Geometry, analysis and remaining engineering work for Roof Grillage R1.

Engineering record

Engineering records / Engineering record

Roof Grillage R2

Geometry, analysis and remaining engineering work for Roof Grillage R2.

Roof Joint Wraps R1 / assembled

Engineering records / Engineering record

Roof Joint Wraps R1

Geometry, analysis and remaining engineering work for Roof Joint Wraps R1.

Engineering record

Engineering records / Engineering record

Roof Joints R1

Geometry, analysis and remaining engineering work for Roof Joints R1.

Engineering record

Engineering records / Engineering record

Roof Mass Ledger R1

Geometry, analysis and remaining engineering work for Roof Mass Ledger R1.

Roof Perimeter R1 / perimeter assembly accounting

Engineering records / Engineering record

Roof Perimeter R1

Geometry, analysis and remaining engineering work for Roof Perimeter R1.

Service Integration R1 / assembled

Engineering records / Engineering record

Service Integration R1

Geometry, analysis and remaining engineering work for Service Integration R1.

Engineering record

Engineering records / Engineering record

Tank Bearing R31

Geometry, analysis and remaining engineering work for Tank Bearing R31.

Tank Family R01 / envelope drawing

Engineering records / Engineering record

Tank Family R01

Geometry, analysis and remaining engineering work for Tank Family R01.

Tank Groove R33 / render

Engineering records / Engineering record

Tank Groove R33

Geometry, analysis and remaining engineering work for Tank Groove R33.

Engineering record

Engineering records / Engineering record

Tank Joint Review R30

Geometry, analysis and remaining engineering work for Tank Joint Review R30.

Engineering record

Engineering records / Engineering record

Tank Roof Service R35

Geometry, analysis and remaining engineering work for Tank Roof Service R35.

Engineering record

Engineering records / Engineering record

Tank Seal Basis R32

Geometry, analysis and remaining engineering work for Tank Seal Basis R32.

Engineering record

Engineering records / Engineering record

Tank Seal Profile R34

Geometry, analysis and remaining engineering work for Tank Seal Profile R34.

Vessel Shell R1 / assembled

Engineering records / Engineering record

Vessel Shell R1

Geometry, analysis and remaining engineering work for Vessel Shell R1.

Wet Pilot R0 / assembled

Engineering records / Engineering record

Wet Pilot R0

Geometry, analysis and remaining engineering work for Wet Pilot R0.

Assembled reactor. R1 assembled packaging study. The 90 mm body and 952 mm carrier height are preliminary dimensions, not a rated reactor.

Treatment & service / Development study

Subfield UV · Reactor R1

Explore the assembled reactor, internal section and lamp-service CAD. This is optional disinfection packaging, not a validated working reactor.

R2 handle candidate. R2 separate handle and support-bridge candidate. It clears the audited head sweep but has not been integrated into the reactor assembly or structurally qualified.

Treatment & service / Development study

Subfield UV · Service review R2

Inspect the separate two-solid handle correction candidate and the engineering limits behind it.