Description
GolPumps 0.75 HP Submersible Well Pump – High-Efficiency Encapsulated Motor (ST 0515)
GolPumps’ encapsulated-resin filled motor is engineered for superior durability, efficiency, and performance in 4-inch or larger wells. Rigorously tested before shipment, this submersible well pump ensures reliable operation in residential, agricultural, and commercial water applications.
Key Features & Benefits
- Hermetically Sealed Stator – Prevents motor burnout with anti-tracking, resin-filled protection
- Energy-Efficient Motor – Optimized for low power consumption and cost savings
- Durable Copper Wiring – Ensures high conductivity and long-lasting performance
- Pressure Equalizing Diaphragm – Maintains stable operation and extends motor life
- Removable Lead Connector – Allows for easy installation and maintenance
- Thrust Pad Technology – Enhances stability and reliability under high performance
- Compatible Control Boxes – Available for single-phase motors
- Standard NEMA Mounting Dimensions – Ensures seamless and secure installation
Technical Specifications
- Upper Bracket: Cataphoresis-treated cast iron with SS304 stainless steel cover cap
- Max Immersion Depth: 985 ft
- Protection Rating: IP68 (Fully waterproof and submersible)
- Max Starts per Hour: 20 (at regular intervals)
- Sealing System: Sand slinger and lip seal for enhanced debris protection
- Insulation Class: F
- Rated Ambient Temperature: 86°F with a minimum cooling flow of 0.08 m/s
- Installation Position: Vertical or Horizontal
Pump Specifications
- Max Head: 470 ft
- Max Flow Rate: 7.5 GPM
- Discharge Size: 1 1/4″
- Horsepower: 0.75 HP
- Material: High-Durability Noryl Construction
- Pump Model: ST 0515
Includes wire splice kit for quick and easy installation
Ideal for deep well applications, this high-performance submersible pump delivers consistent water flow and energy efficiency, making it perfect for home water supply, irrigation systems, and commercial use.
Order Now for Fast Shipping & Long-Lasting Performance!
| Model | Pump | ST 5-15 |
| Motor | 4CF2516M | |
| Brand | Gol Pumps | |
| Manufacturer’s Warranty | 1 years Limited Warranty | |
| P2 | kW | 0.55 |
| HP | 0.75 | |
| Service Factor | 1.5 | |
| Material | Pump | Noryl |
| Motor | Noryl | |
| Voltage – Phase | 230V – Single Phase | |
| Wire | 2 | |
| In | A | 6.6 |
| Imax | A | 6.7 |
| Istart | A | 23 |
| PF (%) | Allowable Load | 0.75 |
| Overload Factor | 0.83 | |
| Efficiency (%) | Allowable Load | 49 |
| Overload Factor | 60.3 | |
| R.P.M | 3450 | |
| Thrust | N | 2000 |
| Capacitor | UF | 20UF 450V |
| Cable | AWG | 14 |
| Length (ft.) | 3.9 | |
| Production Country | Taiwan | |
Performance Curves
| Pump Model | Motor | Q Capacity 3500RPM | |||||||
| kW | HP | Gal/Min | 0 | 2.6 | 4 | 5.3 | 6.6 | 7.9 | |
| ST 5-15 | 0.55 | 0.75 | Head (ft.) | 472.4 | 406.8 | 360.9 | 292 | 213.3 | 128 |
Dimensions and Weights
| Outlet | Motor Dia. | Dimensions (inch) | Weight (lb) | |||||
| A | B | C | D | Pump | Motor | Pump + Motor | ||
| NPT 1 1/4″ | 4″ | 16.2″ | 1 1/4″ | 3.9″ | 29.4″ | 9 | 22.9 | 31.9 |
Part List and Materials
| No. | Part Name | Materials |
| 1 | Discharge Head | AISI 304 |
| 4 | Check Valve Cone | AISI 304 |
| 6 | Check Valve Retaining Ring | AISI 304 |
| 8 | Bearing Spider | Glass Filled Polycarbonate |
| 12 | Diffuser | Glass Filled Polycarbonate |
| 13 | Bowl | AISI 304 |
| 18 | Impeller | Noryl |
| 34 | Strainer | AISI 304 |
| 40 | Pump Shaft / Coupling | AISI 304 |
| 42 | Shaft Sleeve | AISI 304 or Norly |
| 48 | Pump Casing | AISI 304 |
| 52 | Cable Guard | AISI 304 |
| 86 | O-Ring | NBR |
| 92 | Bearing | Polyacetal |
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