Compute thermowell natural frequencies and vortex-shedding (wake) frequencies, and assess resonance risk, stresses and pressure limits using the methods of PTC 19.3 TW-2016 (R2025). Keep inputs, studies and PDF reports together in your online projects.
Flow velocity : 125 m/sA and B unchanged · velocity preserved
Illustrative example from a test: L changes from 120 to 89 mm at 125 m/s. This result depends on the complete study inputs; it cannot be transferred to another installation.
Straight and tapered shanks. The search may find no solution within your chosen limits. Check insertion, nozzle clearance, manufacturing feasibility and material data validity before selecting a variant.
FROM INPUT TO REVIEW
One project. Every thermowell in context.
Explore the four stages below. This is a guided product preview; no engineering calculation is run on this page.
Start with a clear identity.
Organise thermowells by project, client, site and location. A visible tag keeps the current calculation identifiable.
Project and thermowell tag
Client, plant and location
Explicit saved / modified status
Use the data you actually have.
Enter fluid velocity directly or derive it from mass or actual volumetric flow and the pipe bore.
Multiple flow and dimension units
Manual or catalogued pipe dimensions
Fluid properties at service conditions
Read the drawing. Follow the checks.
Inspect the dimensioned thermowell and the detailed calculation findings. Numerical PASS/FAILED and material approval are separate statuses.
Geometry and process values together
Visible numerical result
Detailed checks and applicability findings
Preserve the reasoning.
Save calculation revisions in the right project. Final report availability depends on valid inputs and the material approval workflow.
Saved inputs and revisions
Material and pipe references
Print-ready calculation report
PROJECT MANAGEMENT, BUILT IN
Your projects. Your studies. One place.
Manage your thermowell projects directly in WellFreq, from your browser. Keep calculation files, revisions and PDF reports organised alongside the equipment they describe.
Organise studies by project, plant or unit, and location.
Reopen saved studies in the calculator and keep their revisions.
Find PDF reports beside the study files; download individual files or a folder as ZIP.
Actual WellFreq project explorer, shown with fictional demonstration data. Interface shown in English.
Project, plant, location and tag stay attached to each study.
Illustrative project list
PDF / 3 PAGES
Inspect a sample calculation report.
Process inputs, geometry, material properties and calculation checks in a single record. Report generated by the engine for worked example 8-1, with its five acceptance checks.
Worked example from Section 8-1, also available in Projects → Examples. Demonstration only: do not use this report for design or installation.
Engineering confidence starts with traceable inputs.
WellFreq is being developed around PTC 19.3 TW-2016 (R2025). Its purpose is to make the calculation workflow easier to review, from dimensions to the resulting checks.
A dimensioned drawing keeps the shank, bore, unsupported length and tip thickness visible.
02
Materials you can trace
The engine supports interpolation between tabulated temperature points. The commercial materials library is in preparation, subject to data rights and validation.
03
Results you can review
Calculation findings, material status and report availability remain distinct. A numerical pass alone does not approve a material.
04
A documented fluid library
Retrieve density and viscosity from stored temperature points, with the source and verification status visible. Current starter data are limited; each fluid must cover the operating conditions.
05
Standard pipe dimensions, less re-entry
162 documented catalogue combinations: ASME B36.10, B36.19, EN 10255 and an Alleima ISO/EN range. The inside diameter is derived from outside diameter and wall thickness.
For the teams behind the instrumentation.
Sensor manufacturers
Manage repeat calculations across customer projects.
Engineering consultancies
Prepare and review thermowell designs with clear input records.
Plant instrumentation teams
Keep process conditions and equipment tags in one working context.
PHYSICS · FLUID DYNAMICS · INDUSTRY
The expertise behind WellFreq
Industrial experience, brought to the calculation.
WellFreq was created by a team of physicists specialising in fluid dynamics, with extensive industrial experience in both laboratories and plants. The team includes a graduate of the von Karman Institute for Fluid Dynamics in Rhode-Saint-Genèse, Belgium.
From the laboratory to the plant
That experience shapes the tool: start with actual process conditions, examine geometric constraints and retain calculations that can be reviewed and checked.
An explicit method
The engine applies the equations and criteria of PTC 19.3 TW-2016 (R2025) within its supported scope. Detailed results refer to the relevant paragraphs, while applicability limits and material status remain visible.
Verification you can inspect
The Verification tab provides checks of the engine against the examples in Section 8, including calculated values and deviations from the references. You can inspect the verification results directly.
These checks document engine behaviour; they are not ASME certification. The relevance of a study also depends on its input data and their validation.
PROPOSED LAUNCH PLANS
One user. Two simple choices.
Prepaid credits for occasional needs. Unlimited access for busy months. No monthly study quota to choose. Indicative launch prices in EUR, excluding tax, subject to final materials licensing terms.
Prepaid credits
€10 excl. VAT / credit
1 credit = 1 thermowell study. Buy the quantity you need.
1 user · no subscription
Unused credits carry over without expiry
1 credit to unlock one study
Automatic recalculations and report reissues included
All prices exclude VAT and other applicable taxes. The total, including any tax due, is shown before payment.
At launch: payments via Stripe to R&P Consulting. No payments are collected in this preview.
One study is one thermowell identified within a project. Automatic recalculations, design variants and report reissues are included. A new tag or a duplicated study is a separate study.
Budget illustration, not a monthly commitment. After your confirmation, one prepaid credit unlocks one study, including its calculations, variants and reports.
Before your first calculation.
Is WellFreq available commercially?
Not yet. The software is under preparation for commercial launch. Material data rights, validation and the production service must be finalised before paid access opens.
Does a PASS result mean ASME certification?
No. PASS describes the implemented numerical checks for the supplied inputs. It does not constitute ASME certification, approval by a client or approval of an installation.
What if I do not know the fluid velocity?
The application can derive mean pipe velocity from mass flow and density, or from actual volumetric flow, using the inside diameter. Standard or normal gas volumes require conversion to service conditions first.
Are temperature-dependent material properties included?
The engine already supports interpolation of E(T) and S(T) between available tabulated temperatures, without extrapolation. The licensed and validated commercial data library is still in preparation.
Can I use it with different thermowell manufacturers?
WellFreq is being developed by R&P Consulting as an independent workspace. Supported geometries, calculation scope and the applicable material data still need to be checked for each design.
When is a credit used?
Access to the calculator, data entry and saved drafts are available with an account. After your confirmation, one credit unlocks a thermowell study before calculation. Its recalculations, variants and reports are included, including iterations from FAILED to PASS. A new thermowell study requires another credit. An active Unlimited subscription covers calculations without consuming credits.
What if my workload changes next month?
There is no monthly quota to set or change. For example, 25 new studies unlocked with credits consume 25 credits; 8 the following month consume 8. Unused credits remain in your account without expiry or a monthly reset.
What happens when I run out of credits?
You retain access to the calculator, drafts and saved files. Studies already unlocked with a credit remain available for recalculation. A new study requires a credit or an active Unlimited subscription. After a subscription expires, its saved studies remain readable; recalculation requires a credit or a renewed subscription. There is no automatic top-up, overage charge or plan switch.
How does annual billing work?
Unlimited annual costs €4,309.20 excluding tax, paid upfront for 12 months. This is 10% off twelve €399 monthly payments: a €478.80 yearly saving, equivalent to €359.10 per month. Renews annually; cancel before the next renewal to stop subsequent billing. Access continues until the end of the paid period.
Can I use Unlimited for one busy month?
Yes. On the monthly plan, Unlimited renews monthly at €399 excluding tax. Cancel before the next renewal to stop subsequent billing; access continues until the end of the paid period. Your unused credits are preserved while subscribed and remain available afterwards.
R&P CONSULTING
How can we help?
A question about WellFreq, pricing, your team or an integration? Send us your enquiry.
