Factory Supply 0.75KW~18.5KW Constant Pressure Water Supply Control Box VFD Variable Frequency Control Cabinet Distribution Box

The VFD Constant Pressure Water Supply Control Box is an integrated intelligent solution designed to maintain a stable, pre-set water pressure regardless of fluctuating demand. By utilizing advanced Variable Frequency Drive (VFD) technology, the system automatically adjusts the pump motor's speed in real-time based on feedback from a pressure sensor.

Whether for a high-rise residential building, a precision irrigation system, or an industrial cooling loop, this control box eliminates the "water hammer" effect, reduces mechanical wear on pumps, and—most importantly—cuts energy consumption by up to 20% to 50%.

• Precision Pressure Stability: Features a built-in PID controller that maintains pressure fluctuations within ±0.01MPa, ensuring a consistent user experience and protecting sensitive equipment.

• Significant Energy Savings: Instead of running the pump at full speed against a closed valve, the VFD scales the power to exactly match the current demand, drastically reducing electricity bills.

• Comprehensive Motor Protection: Integrated safeguards against over-voltage, under-voltage, over-current, phase loss, short circuits, and dry-running (no-water protection).

• Soft Start & Soft Stop: By gradually ramping motor speed up and down, the system prevents mechanical shock and "water hammer" in the piping, extending the life of your pumps and valves by years.

• User-Friendly Interface: Equipped with a clear digital display for real-time pressure monitoring and a tactile keypad for easy parameter adjustment without needing a computer.

1. High-Rise Buildings: Ensuring consistent water pressure on the top floors during peak usage hours.

2. Agricultural Irrigation: Automated drip or sprinkler systems that adapt to the number of active zones.

3. Industrial Cooling Systems: Maintaining stable coolant flow for machinery and HVAC chillers.

4. Domestic Booster Systems: Replacing traditional pressure tanks with a more compact and efficient electronic solution.

5. Water Treatment Facilities: Controlling feed pumps for RO (Reverse Osmosis) and filtration systems.

• Ready-to-Install (Turnkey): Unlike buying a bare VFD, our control box comes fully wired with breakers, contactors, and terminals. Just connect your power and motor leads.

• Component Quality: We utilize industrial-grade VFDs and premium electrical components (Schneider/ABB or equivalent high-tier domestic) for 24/7 continuous operation.

• Intelligent Sleep Mode: The system automatically enters "Sleep Mode" when there is zero demand, consuming near-zero power until a drop in pressure is detected.

• Remote Monitoring Ready: Includes RS485 (Modbus) communication ports for integration into Building Management Systems (BMS) or IoT monitoring.

Q: Do I need a pressure tank with this VFD controller?

A: While the VFD does the heavy lifting, we recommend a small pressure buffer tank (5L-20L) to help the system maintain pressure during "Sleep Mode" and reduce frequent micro-starts.

Q: Can this control multiple pumps?

A: Yes. We offer specialized configurations for "One VFD for Multiple Pumps" or "Circular Switching" to ensure equal wear and tear across all pump units.

Q: Is it difficult to program?

A: Not at all. Most units come pre-configured for standard pressure ranges. We provide a simplified English quick-start guide that focuses on the 3-4 parameters you actually need to know.

Low voltage distribution box

JXF series distribution box is suited for operating in the circuit of AC 50Hz, rated operating voltage 500V and below, in some special cases, the protection grade can reach up to IP55, the top and bottom of the panel will provide knockout holes, if multiple pipes are used for incoming lines, opening plate can be prepared, maxi rated current up to 400A, especially suitable for usage in metering and control box of mining field, hotel, living buildings and etc. Comply with GB7251.12-2013 Low voltage switchgear and controlgear, IEC60439-2:2011 Low voltage switchgear and controlgear standard.