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05:10 AM
A.Y. McDonald water well pressure switch with a 1/4 in connection, in 20/40, 30/50 and 40/60 PSI settings. The switch starts the pump at the first figure and stops it at the second.
Included: the pressure switches in the pack shown in the option.
Covered for 1 year from the date of shipment from A.Y. McDonald’s factory under A.Y. McDonald’s published limited warranty, which applies to the products A.Y. McDonald manufactures.
| Settings (cut-in/cut-out) | 20/40 PSI, 30/50 PSI, 40/60 PSI |
| Connection | 1/4 in female NPT |
| Enclosure | NEMA 1 switch cover with captive nut |
| Adjustment | Each turn of the adjustment screw changes the setting 2 PSI; instructions are inside the top cover |
| Packaging | Individually boxed |
Source: A.Y. McDonald Plumbing Price List, effective 7-07-26, p. 76; A.Y. McDonald Plumbing Catalog (1/25), No-Lead Tank Tees and Insert Fittings, pp. 110-115.
| Part No. | Setting | Sold As |
|---|---|---|
| 3129-457 | 20/40 PSI | 2-Pack |
| 3129-458 | 30/50 PSI | 2-Pack |
| 3129-459 | 40/60 PSI | 2-Pack |
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