Groco PJR-A 12V Paragon Junior Water Pressure System with PST-1 Tank
The Groco PJR-A 12V Paragon Junior Water Pressure System is engineered for reliable freshwater pressure delivery in marine, commercial, and industrial applications requiring consistent flow and pressure performance. Featuring a compact two-stage rotary bronze pump, this system provides up to 7 GPM with an operating pressure range of 20–40 PSI. The included PST-1 pressure storage tank helps reduce pump cycling while maintaining smooth and steady water flow.
Designed with self-priming capability and Groco’s patented NOFLO dry-run protection system, the PJR-A 12V is built for dependable operation in demanding environments. Its bronze construction, low-lead NSF-61 compliance, and rugged engineering make it suitable for freshwater systems, washdown operations, utility water transfer, and specialized pressure applications where durability and long service life are essential.
Key Features
- Compact two-stage rotary bronze pump
- Self-priming design for dependable startup
- Integrated PST-1 pressure storage tank included
- Delivers up to 7 GPM flow capacity
- Operating pressure range of 20–40 PSI
- Patented NOFLO dry-run protection
- Pressure gauge and inlet strainer included
- NSF-61 low-lead compliant construction
- Designed for continuous-duty water pressure applications
- 12 Volt DC motor operation
Applications
- Freshwater pressure systems
- Marine water supply systems
- Yacht and vessel water distribution
- Commercial washdown systems
- Utility water transfer systems
- Industrial pressure boosting
- Mobile service vehicle water systems
- Recreational vehicle water pressure systems
- Remote water delivery systems
- Equipment cleaning operations
Specifications
- Manufacturer: Groco
- Model: PJR-A 12V
- Product Type: Water Pressure System
- Voltage: 12 Volt DC
- Maximum Flow Rate: 7 GPM
- Pressure Range: 20–40 PSI
- Pump Type: Two-Stage Rotary Pump
- Construction Material: Bronze
- Self-Priming: Yes
- Pressure Storage Tank: PST-1 Included
- Dry-Run Protection: NOFLO System
- Included Components: Pressure Gauge, Inlet Strainer
- Compliance: NSF-61 Low-Lead Standard
- Recommended Breaker: 30 Amp
- Port Size: 3/4 Inch ID Hose Inlet x 3/4 Inch ID Hose Outlet
FAQs
What makes the Groco PJR-A 12V different from standard water pressure pumps?
The PJR-A 12V uses a heavy-duty bronze two-stage rotary pump with a dedicated pressure storage tank, providing smoother water flow, improved durability, and reduced pump cycling compared to conventional diaphragm pumps.
Is the Groco PJR-A 12V suitable for non-marine applications?
Yes. Although commonly used in marine environments, this pressure system is also suitable for commercial, industrial, mobile service, and utility water transfer applications requiring dependable pressurized water delivery.
Does the system include dry-run protection?
Yes. The integrated NOFLO protection system automatically shuts the pump down during dry-run conditions to help protect internal components and extend service life.
Can this pump handle continuous-duty operation?
The Groco PJR-A 12V is designed for demanding continuous-use applications when installed correctly with proper ventilation and electrical protection.
What are the benefits of the included PST-1 pressure tank?
The PST-1 pressure storage tank helps maintain stable water pressure, reduces cycling frequency, minimizes pulsation, and contributes to quieter system operation.
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