Onga SPN100SP Cast Iron Pressure-Switch Centrifugal Pump for Automatic Pressure Boosting with Twin Impeller

Automatic pressure boosting and water distribution for domestic and commercial systems are the primary applications for this integrated pump kit. It features a factory-fitted pressure switch that enables automatic start/stop functionality based on system demand. The unit is optimized for clean water transfer to maintain steady pressure at the outlet from tanks or bores.

Hydraulic performance includes a maximum head of 47 m and a maximum flow rate of 100 L/Min. The 1.1 kW single-phase motor operates on 240v and draws 7 Amps. This performance is ideal for systems where automatic pressure management is required for washdown, agriculture, and horticulture. The integrated pressure switch provides automatic start and stop based on system pressure.

The hydraulic design utilizes high efficiency twin brass impellers to build pressure through two centrifugal stages for efficient transfer. This twin-stage centrifugal approach provides significant head while remaining quiet during operation. The system is designed to handle clean liquid temperatures ranging from 0°C to +90°C, making it suitable for temperate water distribution.

Construction includes a rugged cast iron pump body and a stainless steel shaft for long-term structural integrity. The high-quality Ceramic/Graphite/NBR mechanical seal ensures a watertight environment, while the IP44 TEFC motor provides protection against environmental conditions. The pressure switch provides automatic start and stop based on system pressure.

FEATURES

• Automatic centrifugal pressure system featuring an integrated pressure switch for self-managing water distribution and boosting.
• Rugged cast iron pump body provides superior structural durability and protection for the internal hydraulic components.
• High-efficiency twin brass impellers offer dual-stage pressure boosting for consistent water delivery in high-head applications.
• Premium Ceramic/Graphite/NBR mechanical shaft seal prevents internal leaks and ensures a long operational service life.
• Reliable 240V single-phase TEFC induction motor rated at IP44 for safe 50Hz operation in domestic and civil environments.
• Stainless steel motor shaft provides the strength and corrosion resistance needed for continuous automatic water transfer.
• Threaded 32mm suction and 25mm discharge connections facilitate straightforward integration into existing pressurized water networks.
• Complete automatic solution supplied with a 1.5m power lead and 3-pin plug for rapid installation and immediate service.