Product details
NorthStar NSQ Series | 12V Diaphragm Pump
The NorthStar NSQ Series 12V On-Demand Sprayer Diaphragm Pump is designed to upgrade or replace pumps on agricultural and horticultural sprayers, providing reliable performance for spot and broadcast spraying. Available in 3.8, 8.3, 11.3 and 15.1 L/min flow models, it offers an industrial-grade 100% duty cycle and chemical-resistant construction for continuous professional use.
Key Features and Specifications
- Application: Replacement or upgrade pump for 12 V sprayers used in spot spraying and broadcast spraying applications.
- Pump type: NSQ Series 12 V on-demand diaphragm pump.
- Duty cycle: 100% continuous duty with no cool down period required.
- Chemical compatibility: DXS-3 valves with chemical-resistant Viton; Santoprene diaphragm; fibreglass-reinforced polypropylene manifold.
- Herbicide approval: Components approved for use with Roundup agricultural herbicide.
- Priming: Self-priming up to 1.2 m (4 ft) above liquid level.
- Mounting: Standard mounting pattern fits all NorthStar sprayers and most other sprayer brands.
- Service life: Rated to 1000 operating hours.
- Electrical switching: Honeywell MICRO SWITCH and automatic power switch that turns off when no flow is required.
- Protection: Unique pressure switch design slowly cycles the pump to reduce switch and motor wear.
- Connections supplied: 12.7 mm hose barb and 12.7 mm male NPT fitting.
Available NSQ Series 12V pump models
The following flow-rate variants are offered for the NorthStar NSQ Series 12V Diaphragm Pump. Only these models are supplied:
| Model | Nominal flow rate | Typical application |
|---|---|---|
| NSQ 3.8 L/min | 3.8 L/min | Small spot sprayers and low-volume applications |
| NSQ 8.3 L/min | 8.3 L/min | General-purpose ATV sprayers and medium spray booms |
| NSQ 11.3 L/min | 11.3 L/min | Higher-output boom and broadacre spot spraying |
| NSQ 15.1 L/min | 15.1 L/min | Large sprayers and applications requiring higher flow capacity |
Application and Usage Instructions
- Select the appropriate NSQ Series 12V Diaphragm Pump model (3.8, 8.3, 11.3 or 15.1 L/min) according to the desired spray output and sprayer configuration.
- Mount the pump using the standard footprint to your sprayer frame or mounting plate, ensuring vibration is minimised and the pump is protected from physical damage.
- Connect the suction and discharge plumbing using the supplied 12.7 mm hose barb or 12.7 mm male NPT fitting, following the sprayer manufacturer’s recommendations.
- Wire the pump into a suitable 12 V DC power supply via an appropriate fuse and switch, observing correct polarity.
- Prime the system and check for leaks, then adjust pressure and flow to suit the spray nozzles and application requirements.
- After use, flush the pump with clean water to remove chemical residues and prolong component life.
Durable 12V diaphragm pump for professional spraying
The NorthStar NSQ Series 12V Diaphragm Pump range in 3.8, 8.3, 11.3 and 15.1 L/min models provides a robust, long-life option for upgrading existing sprayers or building new units. With 100% duty cycle, chemical-resistant construction and a proven design that is approved for use with leading herbicides, it delivers dependable performance in demanding professional spraying environments.
