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A.Y. McDonald Series 16 diaphragm pressure tanks for water well and booster systems, from 2 gallon in-line tanks to 119 gallon free-standing vertical tanks. A sealed diaphragm separates air charge from water, holding drawdown between pump cycles, reducing pump starts, and protecting the system from short cycling. In-line tanks thread directly into the line; horizontal tanks carry a pump mounting saddle on a plastic base; vertical tanks stand on a plastic or metal base with side system connection.
| Part Number | Model Number | Gallons | Style | Connection | Weight (lb) |
|---|---|---|---|---|---|
| 6127-388 | 16002-V3M | 2 | In-Line | 3/4 in male | 5.1 |
| 6127-389 | 16005-V3M | 5 | In-Line | 3/4 in male | 8.2 |
| 6127-390 | 16006-V3M | 6 | In-Line | 3/4 in male | 8.2 |
| 6127-391 | 16006PH4M | 5 | Horizontal | 1 in male | 9.7 |
| 6127-392 | 16010PH4M | 10 | Horizontal | 1 in male | 16.4 |
| 6127-393 | 16016PH4M | 16 | Horizontal | 1 in male | 24.5 |
| 6127-394 | 16021PH4M | 21 | Horizontal | 1 in male | 32.5 |
| 6127-395 | 16026PH4M | 26 | Horizontal | 1 in male | 33.1 |
| 6127-396 | 16016PV4F | 16 | Vertical | 1 in female | 24.3 |
| 6127-397 | 16021PV4F | 21 | Vertical | 1 in female | 32.2 |
| 6127-398 | 16026PV4F | 26 | Vertical | 1 in female | 33.5 |
| 6127-399 | 16032PV4F | 32 | Vertical | 1 in female | 50.1 |
| 6127-400 | 16034PV5F | 34 | Vertical | 1-1/4 in female | 54.1 |
| 6127-401 | 16042PV5F | 42 | Vertical | 1-1/4 in female | 61.3 |
| 6127-402 | 16053PV5F | 53 | Vertical | 1-1/4 in female | 68.6 |
| 6127-403 | 16062PV5F | 62 | Vertical | 1-1/4 in female | 83.2 |
| 6127-404 | 16081PV5F | 81 | Vertical | 1-1/4 in female | 103.9 |
| 6127-405 | 16086MV5F | 86 | Vertical | 1-1/4 in female, metal base | 106.9 |
| 6127-406 | 16119MV5F | 119 | Vertical | 1-1/4 in female, metal base | 135.6 |
A.Y. McDonald Pressure Tank Guide (PDF)
Need help sizing a pressure tank? Email sales@watermainsupply.com or call 281.664.8000 with your pump model and drawdown requirement.
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