The Grundfos 800S500-2 (product number 20349602) is a SP160 stainless steel submersible well pump rated 845 US gpm at 187 ft across 2 stages, supplied complete with a three-phase Grundfos submersible motor.
Performance Curve
Official Grundfos curve — 60 Hz, water at 68 °F. Head (H) and efficiency (η) against flow (Q); lower chart shows power and NPSH required.
Performance & Hydraulic Data
| Rated flow | 845 US gpm |
| Rated head | 187 ft |
| Stages | 2 |
| Pump speed (data basis) | 3450 rpm |
| Pump type | SP160 |
| US designation | SP160-2 |
| Maximum operating pressure | 870.23 psi |
| Maximum outlet pressure | 136.34 psi |
| Built-in return valve | Yes |
| Curve tolerance | ISO9906:2012 3B |
Materials of Construction
| Pump housing | Stainless steel — EN 1.4301 — AISI 304 |
| Impellers | Stainless steel — EN 1.4301 — AISI 304 |
Installation & Connections
| Discharge connection | 6 NPT(F) |
| Motor diameter | 6 inch |
| Minimum borehole diameter | 8.46 in |
| Overall length | 82.7 in |
| Liquid temperature range | 5 °F to 122 °F |
Motor & Electrical Data
| Voltage & phase | 440-460-480 V, three-phase |
| Frequency | 60 Hz |
| Enclosure class | IP68 |
| Grundfos motor number | 99600226 |
Approvals, Weights & Identification
| Approvals | CULDWUS,CCSAUS |
| Drinking water | PROP65 |
| Grundfos product number | 20349602 |
| EAN | 5700393826946 |
| Net weight (pump + motor) | 350.2 lb |
| Gross (shipping) weight | 552.9 lb |
Typical Applications
Well and borehole water supply • groundwater abstraction • irrigation • pressure boosting • livestock and rural water • industrial process water.
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