VSD Booster Pump Manufacturer in China - RAFSUN
RAFSUN Smart VSD Booster Pump for Constant Pressure Water Supply
RAFSUN smart VSD booster pumps are designed to provide stable constant water pressure for homes, villas, apartments, hotels and commercial buildings. With variable speed control, low noise operation and energy-saving performance, they help distributors offer a reliable alternative to traditional pressure booster systems.
- Stable constant pressure through smart VSD control
- Energy-saving performance compared with traditional pumps
- Low-noise operation for residential and commercial use
- Built-in protection functions for safer pump operation
- Longer service life through optimized speed control
Ideal for distributors targeting residential, commercial and light industrial water pressure solutions.
RAFSUN VSD Booster Pump Series
Why Choose Our VSD Booster Pumps
General Application of VSD Booster Pumps
Advantages of VSD Booster Pumps
High Efficiency VSD Pump
• High efficiency PMSM
• Variable frequency & constant Pcressure
• Supersilent < 50dB
• Wide range pressure settings 20-95%
• IP55 protection
• Premium AISI304 impeller
• PCB Sealed with Potting Compound
• 14 protection function offers satisfied user experience
• Optional:Pump Link Mode – Achieve double water output
Host & Slave pump: Auto – Alternating run mode
Host & Slave pump: Timing-alternating run mode
• Optional:Wifi Function
14-Shield | VSD Booster Pump Controller
• Soft start and soft stop
• Antifreeze protection
• Phase loss protection
• Water shortage protection
• Overcurrent protection
• Stall protection
• Input voltage over/under protection
• Driver board overheating protection
• High water temperature protection
• Short-time overheating protection
• Pipeline Leak Warning
• IPM temperature sensor warning
• Water temperature sensor warning
• Pressure sensor failure warning
VSD Controller has
2 LEDs Display:
• Operating pressure
• Set pressure
5 buttons
• UP button
• Down button
• On/Off button
• Reset button
• Contact button (Optional: Pump link mode)
7 indicators
• ①&② indicators (Optional: Pump link mode)
• Constant pressure indicator
• Pipeline leakage indicator
• Input voltage fault indicator
• Water shortage protection indicator
• Pump output power level indicator
Eco-friendly natural rubber
• 70% less pump cycling
• 100000+ Cycle lifespan
• Prevents water hammer
• 5L,10 bar max,1.8 bar pre-charged
• 1.5mm membrane,<1% monthly leakage
• 200000+ air cycles, 30000+water cycles
Premium AISI304 | Pump inlet & outlet
• 18/8 premium grade (18% Cr, 8% Ni)
• 870°C heat resistant
• 100% food safety certified
• 2X longer lifespan
• 24/7 corrosion protection
Integrated pressure & temp sensor
Pressure Sensor
• Supply: 4.75-5.25 VDC, 15 mA max
• Pressure range: 0-10 bar
• Temperature ranges:
• Operating:-30°C-120°C
Temperature Sensor
• Precision: +1%
• Range:-50°C to +125°C
• NTC thermistor technology
• Response time: 2-3 seconds
Premium AISI304 Impeller | 3xAnti-Corrosion Life
• 200+ MPa tensile strength
• pH 2-13 tolerance range
• (±0.1mm)High-precision casting
• Chemical degradation resistance
Advanced Ferrite magnet
• Heat resistance: 150°C without demagnetization
• Optional EMC+PFC configuration
• Noise level: <50dB
UltraShield PCB Potting
• 100% waterproof seal
• Prevents 95% of moisture-related failures
• IP67 protection rating
• Extends lifespan by 3-5 years
Pump Link Mode (Optional)
• Higher Flow: Combined capacity
• Smart Control: Demand-based operation
• Reliability: Instant backup system
• Longer Life: Reduced wear
• Efficiency: Optimized energy use


Smart Control: WiFi function (Optional)
• Monitor real-time pump status remotely
• Remotely adjust pump parameters and control operation
Contact Rafsun to get the service for free
- Get a free solar pump
- Get free solution customization and configuration advice
- Get free installation and application tutorial videos








