The Sta-Rite K series submersible well pumps provide first class performance in residential, commercial, irrigation and farm use. The proven “Floating Impeller” staging system incorporates a sand handling and thrust management staging system with “dry-run” design. Designed with a corrosive resistant, stainless steel wear surface that greatly reduces problems with abrasives and sand lock-up.
Features
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Stainless steel shell offers high corrosion resistance
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Fiberglass-reinforced thermoplastic discharge with proven internal check valve
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Nylatron discharge bearing is self-lubricating and resists wear surface from sand
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Acetal impellers
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Polycarbonate diffusers
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Suction Caps are polycarbonate with stainless steel insert
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Proprietary spec. thrust pads
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Hexagonal 3/8” shaft and coupling are made of stainless steel 300 grade and offers generous impeller drive surfaces
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Motor Bracket/Intake Screen is made of fiberglass-reinforced thermoplastic incorporates an integral suction screen
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Durable internal check valve
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Rigid PVC, corrosion resistant cable guard with 300-grade stainless steel fasteners
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Large wrench flats and rope hole
STA-RITE K SERIES 4″ SUBMERSIBLE WELL PUMPS |
Model Comparison Chart
Model | Discharge | HP | Voltage | Phase | Best Efficiency GPM | Shut-off Head | Wiring | Stages |
S10K05231-02 | 1-1/4″ | 1/2 | 230 | 1 | 10 | 243′ | 3-wire | 7 |
S10K05221-02 | 1-1/4″ | 1/2 | 230 | 1 | 10 | 243′ | 2-wire | 7 |
S10K05121-02 | 1-1/4″ | 1/2 | 115 | 1 | 10 | 243′ | 2-wire | 7 |
S7K05231-02 | 1-1/4″ | 1/2 | 230 | 1 | 7 | 329′ | 3-wire | 10 |
S5K05231-02 | 1-1/4″ | 1/2 | 230 | 1 | 5 | 356′ | 3-wire | 12 |
S10K07231-02 | 1-1/4″ | 3/4 | 230 | 1 | 10 | 313′ | 3-wire | 9 |
S7K05221-02 | 1-1/4″ | 1/2 | 230 | 1 | 7 | 329′ | 2-wire | 10 |
S7K05121-02 | 1-1/4″ | 1/2 | 115 | 1 | 7 | 329′ | 2-wire | 10 |
S10K07221-02 | 1-1/4″ | 3/4 | 230 | 1 | 19 | 313′ | 2-wire | 9 |
S5K05221-02 | 1-1/4″ | 1/2 | 230 | 1 | 5 | 356′ | 2-wire | 12 |
S5K05121-02 | 1-1/4″ | 1/2 | 115 | 1 | 5 | 356′ | 2-wire | 12 |
S7K07231-02 | 1-1/4″ | 3/4 | 230 | 1 | 7 | 428′ | 3-wire | 13 |
S5K07231-02 | 1-1/4″ | 3/4 | 230 | 1 | 5 | 505′ | 3-wire | 17 |
S20K10231-02 | 1-1/4″ | 1 | 230 | 1 | 20 | 262′ | 3-wire | 7 |
S7K07221-02 | 1-1/4″ | 3/4 | 230 | 1 | 7 | 428′ | 2-wire | 13 |
S10K10231-02 | 1-1/4″ | 1 | 230 | 1 | 10 | 417′ | 3-wire | 12 |
S20K10221-02 | 1-1/4″ | 1 | 230 | 1 | 20 | 262′ | 2-wire | 7 |
S10K10221-02 | 1-1/4″ | 1 | 230 | 1 | 10 | 417′ | 2-wire | 12 |
S5K07221-02 | 1-1/4″ | 3/4 | 230 | 1 | 5 | 505′ | 2-wire | 17 |
S7K10231-02 | 1-1/4″ | 1 | 230 | 1 | 7 | 560′ | 3-wire | 17 |
S5K10231-02 | 1-1/4″ | 1 | 230 | 1 | 5 | 624′ | 3-wire | 21 |
S7K10221-02 | 1-1/4″ | 1 | 230 | 1 | 7 | 560′ | 2-wire | 17 |
S20K15231-02 | 1-1/4″ | 1-1/2 | 230 | 1 | 20 | 337′ | 3-wire | 9 |
S20K15221-02 | 1-1/4″ | 1-1/2 | 230 | 1 | 20 | 337′ | 2-wire | 9 |
S10K15221-02 | 1-1/4″ | 1-1/2 | 230 | 1 | 10 | 556′ | 2-wire | 16 |
S10K15231-02 | 1-1/4″ | 1-1/2 | 230 | 1 | 10 | 556′ | 3-wire | 16 |
PERFORMANCE CURVES |
PERFORMANCE BY PLUMBING DEPTH |
DIMENSIONAL DATA |
MANUAL |
Sta-Rite 4″ Submersible Well Pump Installation and Operating Manual |
SPECIFICATIONS |
Sta-Rite K Series Specifications |
Pump Products application engineers are standing by to help you find the right pump, as well as to provide price quotes, stocking availability and shipping information. Call our toll free number 1-800-429-0800 to speak to an expert today.