Calculators & selectors for pressure-system engineers.

Five live tools to help you specify the right COPV and regulator without the back-and-forth of an RFQ. Each one runs in the browser, no sign-up, no email gate. Built on the same engineering data MEYER uses to scope its own production cylinders.

How to use them together

The tools are designed to be used in sequence during early-stage architecture work:

1. Pressure Tier Calculator first — picks the operating pressure based on H₂ mass, envelope, and infrastructure.
2. COPV Selector next — at that pressure, which of the five formats fits your cycle life, permeation, and mass profile?
3. Mass Calculator — estimate cylinder mass at the chosen format and pressure for sizing studies.
4. Permeation Calculator — verify gas loss is acceptable for your storage duration.
5. Cost of Ownership Calculator — sanity-check the choice across a 5-year operational horizon.

Three of the five tools also feed directly into the production catalog — once you know the format, pressure, and volume, the catalog row is one click away.

Why these tools exist

Most cylinder vendors hide their engineering behind a sales process. We hate that. The math behind cylinder mass, permeation, and pressure-tier selection is not proprietary — it’s textbook physics calibrated against production data — and engineers should be able to run it themselves before talking to a salesperson.

If the tool says you don’t need a custom MEYER cylinder, it’ll tell you. If it says a stock HDRX cylinder fits, you can order it directly from the catalog. If it says you need something we don’t make, we’ll either build it or refer you to the right partner. Engineering first; commercial conversation second.

Limitations

• All five calculators give directional figures for engineering trade-off studies. For programme qualification you need measured data on actual cylinders.
• The mass and pressure-tier models are calibrated against MEYER’s production data — accurate within ±10–15% across the catalog. Other manufacturers’ cylinders may sit slightly higher or lower depending on construction.
• The TCO model assumes a daily-fill commercial UAV operation — adjust the inputs (or the model assumptions in the article) if your operation is different.
• The permeation model is calibrated against indicative production-cylinder rates. Liner-specific formulation, dome geometry, and elastomer seals can shift actual permeation by ±30%.

Need a verified estimate?

For a programme-specific spec — including measured permeation data, real cylinder mass to your dimensions, and quotation — request a custom quote. We respond within 3 working days with feasibility, ballpark mass, dimensions, and lead time.