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Product overviewWhat PlutoHX is, what it designs, and where to find each part of the product.
How it worksThree ways to start, the choice of PlutoGen or Classic, the six steps of a design, and what comes out.
All featuresEvery feature of PlutoHX, each with a page of its own.
PlutoGenThe AI assistant inside PlutoHX: it parses the datasheet, generates the 3D model, and answers questions.
Datasheet importThe process datasheet imported directly, with the fields PlutoHX parses from it.
3D modelThe interactive model of the reference exchanger, and the views PlutoHX offers.
Flanges and boltingThe three flange pairs and their bolting, with a true Appendix 2 calculation.
TubesheetsTubesheet thickness and tube layout, to ASME Part UHX and Division 2, Part 4.18.
Fabrication sequenceThe eight stages of building the exchanger, from the front end to the saddles.
Error checkingLive checks against the code limits, with a friendly note when a value needs attention.
Material libraryASME Section II materials and allowable stresses, searchable and ready to apply.
ReportsThe calculation package, drawings, bill of materials, and the other documents of a design.
Exchanger typesFixed tubesheet, U-tube, and floating head exchangers, and the TEMA letters that name them.

Compliance overviewHow PlutoHX follows the codes, and a page for each code and standard.
ASME Section VIII, Division 1The design code: the rules PlutoHX applies, part by part.
ASME Section VIII, Division 2Flanged joints and tubesheets under Division 2, through Mandatory Appendix 46.
TEMA StandardsClasses R, C, and B, every type letter, and the construction details PlutoHX follows.
API 660The standard for shell-and-tube exchangers in the petroleum, petrochemical, and natural gas industries.
Supporting standardsFlanges, gaskets, bolted joints, nozzle loads, saddles, materials, and welding.
Worked examplesFive calculations with every formula, input, and step.
TransparencyHow each result can be traced, reviewed, and handed to an Authorized Inspector.

Use cases overviewHow fabricators, engineers, EPC firms, owner-operators, reviewers, and students use PlutoHX.
FabricatorsFrom the customer’s datasheet to a quotation, and a shop plan in eight stages.
Design engineersA new exchanger designed to the codes, with what-ifs that answer straight away.
EPC firmsA design change late in the project, with the dependent checks run again.
Owner-operatorsExchangers you run and maintain, with the design records to match.
Lead engineers and quality managersReviews that follow each result back to its formula, inputs, and rule.
Students and young engineersLearning the codes on the Free plan, with PlutoGen to answer questions.
IndustriesOil and gas, petrochemical, and power generation.

ResourcesAnswers, definitions, short guides, and how to reach us.
Questions and answersShort answers about PlutoHX and the rules it applies.
GlossaryThe terms and abbreviations of the site, in plain words.
GuidesShort explainers on TEMA letters, shell thickness, girth flanges, and saddles.
TEMA type letters explainedHow three letters describe the front end, the shell, and the rear end.
Shell thickness, UG-27The UG-27 formula for a shell under internal pressure, filled in step by step.
Girth flanges to Appendix 2From the gasket to the bolts and the flange thickness.
Fixed and sliding saddlesWhy a horizontal exchanger stands on one fixed and one sliding saddle.
SupportHow to reach us before PlutoHX launches.

Maltirra SolutionsThe company behind PlutoHX, how the Pluto family fits together, and how we work.
PlansFree, Pro, and Enterprise, and who each plan is for.
Book a demoWhat a live demo shows, and how to book one.
ContactQuestions and demo requests: the form, email, and phone.
Privacy PolicyWhat this website collects, why, and for how long.
Terms of ServiceThe terms for using this website.
AccessibilityOur commitment, what we test, and how to tell us about a problem.
SitemapEvery page of this website, by section.