Grundfos JP 4-47 PM START Pressure Booster Self-Priming Centrifugal Pump – 93294039
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The Grundfos JP 4-47 PM START is a self-priming single-stage centrifugal pressure booster pump designed for domestic water supply, rainwater harvesting, and pressure boosting applications. The booster set combines a corrosion-resistant stainless steel JP pump with an integrated pressure manager that automatically starts and stops the pump based on water demand. Featuring a stainless steel pump housing, composite PPO-20GF impeller, BBVP shaft seal, and a 0.55 kW air-cooled motor, it delivers a rated flow of 4 m³/h and a rated head of 41 m. The unit offers self-priming capability up to 8 metres, built-in dry-running protection, thermal overload protection, an integrated non-return valve, and quiet operation with sealed-for-life ball bearings.
Suitable Applications
- Domestic ground water intake
- Domestic rainwater harvesting systems
- Domestic water pressure boosting
- Garden irrigation systems
- Clean water transfer
Key Specifications
| Product Name | JP 4-47 PM START |
| Product Number | 93294039 |
| EAN | 5715470489419 |
| Pump Type | Self-Priming Single-Stage Centrifugal Pressure Booster Pump |
| Rated Flow | 4 m³/h |
| Rated Head | 41 m |
| Speed (Pump Data) | 2800 rpm |
| Shaft Seal | BBVP |
| Liquid Temperature Range | 0 to 40 °C |
| Maximum Operating Pressure | PN 6 bar |
| Connections | 1" G(F) Inlet / 1" G(F) Outlet, ISO 228-1, PN 6 |
| Base / Head Material | Stainless Steel (EN 1.4301 / AISI 304) |
| Impeller Material | Composite (PPO-20GF) |
| Motor Power (P2) | 0.55 kW |
| Voltage | 1 x 220–240 V |
| Frequency | 50 Hz |
| Rated Current | 3.8 A |
| Motor Efficiency Class | IE1 |
| Enclosure Class | IP44 |
| Insulation Class | F |
| Net / Gross Weight | 8.65 kg / 12.4 kg |
| Approvals | RCM, WEEE |
Documentation & Downloads
| JP BOOSTER PT (Quick Guide) | Download |
| JP / JP PM, JP PT-V / JP PT-H (Quick Guide) | Download |
| CH, JP Booster (Installation and Operating Instructions) | Download |
| Correction Sheet for CH and JP Booster Sets | Download |
| JP Basic Booster (Installation & Operating Instructions) | Download |
| JP and JP Booster (Installation and Operating Instructions) | Download |
| JP and JP Booster (Safety Instructions and Other Important Information) | Download |