UK Air Operated Double Diaphragm Pumps Market, By Pressure
| Label | Aluminum | Cast Iron | Stainless Steel | Others |
|---|---|---|---|---|
| 2018 | 36.6 USD Mn | 10.1 USD Mn | 41.7 USD Mn | 15.7 USD Mn |
| 2019 | 38.1 USD Mn | 10.5 USD Mn | 43.4 USD Mn | 16.3 USD Mn |
| 2020 | 33.6 USD Mn | 9.2 USD Mn | 38.3 USD Mn | 14.3 USD Mn |
| 2021 | 35 USD Mn | 9.5 USD Mn | 39.9 USD Mn | 14.8 USD Mn |
| 2022 | 36.5 USD Mn | 9.9 USD Mn | 41.7 USD Mn | 15.4 USD Mn |
| 2023 | 38.2 USD Mn | 10.2 USD Mn | 43.6 USD Mn | 16.1 USD Mn |
| 2024 | 40.1 USD Mn | 10.7 USD Mn | 45.8 USD Mn | 16.8 USD Mn |
| 2025 | 42.1 USD Mn | 11.1 USD Mn | 48.1 USD Mn | 17.5 USD Mn |
| 2026 | 44.1 USD Mn | 11.6 USD Mn | 50.6 USD Mn | 18.4 USD Mn |
Data Source: Wantstats Repository
Market Dynamics
Stainless Steel is the biggest of 4 groups as of 2026, at 50.60M USD (41% of the combined total).
Next is Aluminum, at 44.10M USD — 13% behind Stainless Steel.
Stainless Steel: 41.70M USD to 50.60M USD, 21% higher by 2026.
Aluminum: up 20% over the period, 36.60M USD to 44.10M USD.
Others climbs from 15.70M USD (2018) to 18.40M USD (2026), a 17% gain.
Cast Iron: 10.10M USD in 2018 to 11.60M USD by 2026, up 15%.
The 4-group total: 104.10M USD in 2018, 124.70M USD by 2026, 20% overall.
How The 4 Series Compare
This is a comparison chart, 4 groups at once — the interesting question is usually how the gap between them changes, not the value of any single group in isolation.
Do not confuse "biggest" with "fastest-growing" — they are frequently different series on a chart like this one, and the gap between them can close faster than the current ranking suggests.
For planning purposes, the end-year figure and the growth rate are the two numbers that matter. Together they show how large the UK Air Operated Double Diaphragm Pumps market is projected to become and how quickly it gets there.
Figures before the 2018 base year are historical estimates; the years through 2026 are projections built from industry data, company revenues, and primary interviews. Forecasts are revised as new data comes in, so check the full report for the latest assumptions.
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