Monarch RLHE-S100 Series Sprinkler Pump & Repair Parts
Monarch RLHE-S100 Series Sprinkler Pump & Repair Parts
The Monarch RLHE-S100 is a reliable, entry-level self-priming sprinkler pump engineered for homeowners with small-to-medium lawns and garden beds. This 1 Horsepower (1 HP) model delivers consistent pressure and flow to power residential turf sprinkling systems, making it a hassle-free solution for keeping your outdoor space green and healthy.
Built with long-term durability in mind, the RLHE-S100 features a rugged blue cast iron housing that resists outdoor corrosion and wear. Its precision-molded Noryl glass-filled impeller ensures smooth water flow, maximizing energy efficiency while avoiding scale buildup common in metal impellers. The unit’s square flange motor includes a high service factor (1.65 SF) and built-in thermal overload protection, automatically shutting down to prevent burnout during extended use.
Designed for easy installation and maintenance, the RLHE-S100 includes a built-in suction check valve to hold prime, eliminating frequent re-priming after initial setup. Its standard 1½” NPT connections make it compatible with most residential irrigation piping systems.
Key Features
- 1 HP Dual Voltage Motor: Configurable for 115V or 230V single-phase power, perfect for adapting to home electrical setups.
- Thermal Overload Protection: Built-in safety feature guards against motor overheating and premature failure.
- Noryl Glass-Filled Impeller: Lightweight, high-efficiency impeller resistant to corrosion and scale buildup.
- Self-Priming Design: Large cast iron housing and integral check valve enable fast priming and prevent backflow.
- Maintenance-Free Seal: Self-lubricating, self-adjusting mechanical seal requires no ongoing upkeep.
- Universal Connections: 1½” NPT suction and discharge ports fit standard residential irrigation lines.
Applications
- Residential Lawn Sprinkling: Ideal for small-to-medium lawns needing consistent pressure for even coverage.
- Garden Irrigation: Powers drip systems, soak hoses, and small garden sprinkler arrays.
- Water Transfer: Efficiently moves water from shallow wells, ponds, or above-ground cisterns.
Technical Specifications
| Model | Suction Port | Discharge Port | Overall Length | Overall Width | Overall Height | Ship Weight |
|---|---|---|---|---|---|---|
| RLHE-S100 | 1½” NPT | 1½” NPT | 18.31″ | 11.87″ | 10.50″ | 56 lbs. |
Performance Data
| Model No. | HP | 10 PSI | 20 PSI | 30 PSI | 40 PSI | Max Pressure |
|---|---|---|---|---|---|---|
| RLHE-S100 | 1 | 54 | 44 | 32 | 17 | 45 PSI |
Motor Specifications
| Model No. | Order No. | HP | Service Factor | Voltage | Phase | Frame Type |
|---|---|---|---|---|---|---|
| RLHE-S100 | 614436-RL | 1 | 1.65 | 115/230V | Single | Square Flange |
Repair Parts
| Ref. No. | Part Code | Quantity | Description |
|---|---|---|---|
| 1 | 433210 | 1 | Blue Cast Iron Casing |
| 2 | 433137 | 1 | Diffuser |
| 3* | 433125 | 1 | Noryl Glass-Filled Impeller |
| 4 | 433159 | 1 | Square Flange Seal Plate |
| 5 | 400111 | 1 | Valve Body |
| 6 | 190645 | 1 | Valve Gasket |
| 11* | 240104 | 1 | Mechanical Seal (Maintenance-Free) |
| 12* | 246238 | 1 | Diffuser Ring |