Goulds 1ST1H9A4 NPE Stainless Steel 3HP Centrifugal Pump
The Goulds 1ST1H9A4 NPE Series centrifugal pump is engineered for dependable performance in demanding industrial and commercial environments. Built with 316L stainless steel wetted components, this pump delivers excellent corrosion resistance while maintaining structural strength and long service life. Its close-coupled design minimizes footprint while allowing flexible horizontal or vertical installation, making it ideal for tight mechanical spaces.
Powered by a 3HP, 3-phase TEFC motor operating at 3500 RPM, the pump ensures consistent flow and pressure for a wide range of fluid handling applications. The precision-engineered enclosed impeller and mechanical seal system enhance efficiency and reduce maintenance requirements over time. With performance capabilities reaching up to approximately 49 GPM and 156 feet of head, it provides reliable output for both continuous-duty and process-critical operations.
Designed for versatility, the Goulds NPE series supports applications such as water circulation, filtration systems, spray systems, and industrial liquid transfer. Its rugged construction and high-efficiency performance make it a trusted solution across manufacturing, HVAC, and general water service industries.
Key Features
- 316L stainless steel construction for corrosion resistance
- Close-coupled compact design for space-saving installation
- High-efficiency enclosed impeller with floating seal ring
- TEFC (Totally Enclosed Fan Cooled) motor for durability
- Carbon/silicon carbide/Viton mechanical seal system
- Continuous-duty rated with rugged ball bearing design
Applications
- Water circulation systems
- Booster service operations
- Liquid transfer and processing
- Filtration and reverse osmosis systems
- Spray and washdown systems
- HVAC and chiller systems
- Injection molding cooling
- Heat exchangers and air scrubbers
Specifications
- Horsepower: 3 HP
- Phase: 3 Phase
- Voltage: 208-230/460V
- Frequency: 60 Hz
- Speed: 3500 RPM
- Max Flow: ~49 GPM
- Max Head: ~156 ft
- Max Pressure: 125 PSI
- Temperature Range: Up to 250°F
- Suction Size: 1-1/4" NPT
- Discharge Size: 1" NPT
- Impeller Diameter: 6-1/8"
- Material: 316L Stainless Steel
FAQ
Q1: What makes the Goulds 1ST1H9A4 suitable for corrosive environments?
The pump uses 316L stainless steel wetted components, which provide excellent resistance to corrosion, chemicals, and harsh water conditions.
Q2: Is this pump suitable for continuous operation?
Yes, it is designed with a TEFC motor and heavy-duty bearings for continuous-duty industrial use.
Q3: Can the pump be installed vertically?
Yes, the close-coupled design allows both horizontal and vertical installation configurations.
Q4: What industries commonly use this pump?
It is widely used in manufacturing, HVAC, water treatment, and general industrial fluid handling.
Q5: What type of seal does this pump use?
It features a mechanical seal made of carbon, silicon carbide, and Viton for durability and leak resistance.
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