“5HP Submersible 3-Wire Motor 53GPM Deep Well Water Pump – 230V – 1P – SS304 – 4″ – 410ft Motor with Splice kit” has been added to your cart. View cart
4HP Submersible Motor 21GPM Deep Well Water Pump -230V – 3P – Noryl – 4″ – 882ft Motor with Splice kit
1,366.00$
The GolPumps 4 HP Submersible Well Pump (ST 1328) is designed to meet the stringent demands of deep well applications, offering superior performance in 4″ or larger wells. With an encapsulated-resin filled motor, this pump ensures optimal efficiency and durability. Each unit is 100% tested for quality assurance before shipment.
SKU:
7060160
Categories: Irrigation Pumps, Residential Pumps, Sprinkler Pumps, Submersible Pumps, Submersibles
Description
GolPumps 4 HP Submersible Well Pump – High-Performance Solution for Deep Wells (ST 1328)
The GolPumps 4 HP Submersible Well Pump (ST 1328) is designed to meet the stringent demands of deep well applications, offering superior performance in 4″ or larger wells. With an encapsulated-resin filled motor, this pump ensures optimal efficiency and durability. Each unit is 100% tested for quality assurance before shipment.
Key Features & Benefits
- Hermetically Sealed Stator – Anti-track stator resin prevents motor burnout, increasing the lifespan of the pump
- High Efficiency – Maximizes operating cost savings while maintaining high-performance levels
- Copper Wiring – Provides superior conductivity and extended pump life
- Pressure Equalizing Diaphragm – Ensures stable performance under varying pressure conditions
- Removable Lead Connector – Simplifies installation and maintenance
- Thrust Pad – Reduces vibrations and improves pump stability during operation
- Control Boxes Available – For single-phase motor with standard NEMA mounting dimensions
Technical Specifications
- Upper Bracket: Cataphoresis-treated cast iron with SS304 stainless steel cover cap
- Max Immersion Depth: 985 ft
- Protection Rating: IP68 (dustproof and waterproof)
- Max Starts Per Hour: 20 (at regular intervals)
- Sealing System: Sand slinger and lip seal for enhanced protection
- Insulation Class: F
- Rated Ambient Temperature: 86°F with minimum cooling flow of 0.08 m/s
- Standard Installation Position: Vertical or Horizontal
Pump Specifications
- Max Head: 1100 ft
- Max Flow Rate: 21 GPM
- Discharge Size: 1 1/4″
- Horsepower: 4 HP
- Pump Material: Noryl (durable, corrosion-resistant material)
- Pump Model: ST 1328
Includes wire splice kit for easy installation.
Ideal For:
- Deep well water supply for residential, agricultural, and commercial use
- Irrigation, livestock watering, and general water pumping applications
- Energy-efficient, reliable pumping with minimal maintenance needs
Order today for efficient, long-lasting performance with GolPumps’ submersible well pump!
Model | Pump | ST 13-28 |
Motor | 4CF6966 | |
Brand | Gol Pumps | |
Manufacturer’s Warranty | 1 year Limited Warranty | |
P2 | kW | 3 |
HP | 4 | |
Service Factor | 1.15 | |
Material | Pump | Noryl |
Motor | Noryl | |
Voltage – Phase | 230V – Three Phase | |
Wire | – | |
In | A | 13.4 |
Imax | A | 14.6 |
Istart | A | 103.9 |
PF (%) | Allowable Load | 0.73 |
Overload Factor | 0.77 | |
Efficiency (%) | Allowable Load | 77.2 |
Overload Factor | 77 | |
R.P.M | 3450 | |
Thrust | N | 6000 |
Capacitor | UF | No |
Cable | AWG | 14 |
Length (ft.) | 8.2 | |
Production Country | Taiwan |
Performance Curves
Pump Model | Motor | Q Capacity 3500RPM | |||||||||
kW | HP | Gal/Min | 0 | 7.9 | 9.2 | 10.6 | 13.2 | 15.9 | 18.5 | 21.1 | |
ST 13-28 | 3 | 4 | Head (ft.) | 882.5 | 833.3 | 807.1 | 774.3 | 692.3 | 590.6 | 465.9 | 315 |
Dimensions and Weights
Outlet | Motor Dia. | Dimensions (inch) | Weight (lb) | |||||
A | B | C | D | Pump | Motor | Pump + Motor | ||
NPT 1 1/4″ | 4″ | 26.7″ | 1 1/4″ | 3.9″ | 48.4″ | 13.2 | 47.4 | 60.6 |
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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