Non Negative Water Pressure Pump Water Supply System Constant Variable Frequency

Non Negative Water Pressure Pump Constant Variable Frequency Water Supply Equipment

Comparison of mainstream equipment types and technologies
1. Non negative pressure water supply equipment (pipeline direct connection type)
Principle: Directly pump water and pressure from the municipal pipeline network, without setting up a water storage tank, and use a stabilizing tank to compensate for pressure fluctuations
Advantages:
✅ Eliminate secondary pollution (closed operation)
✅ Energy saving of over 40% (utilizing residual pressure in the pipeline network)
✅ 50% land saving (no need for water tank)
Limitations: The municipal pressure must be ≥ 0.2MPa and the flow rate must be sufficient, otherwise it may cause a water outage
Applicable: Mid to low rise residential and commercial complexes
2. Variable frequency constant pressure water supply equipment (water tank+pump set)
Principle: Municipal water enters the water tank first, the water pump pumps water from the tank to increase pressure, and the variable frequency maintains the set pressure
Advantages:
✅ Unrestricted by municipal pressure, high reliability of water supply
✅ Can integrate water purification modules (such as iron and manganese removal devices)
Limitations: Regular cleaning of the water tank is required, which poses a risk of contamination
Applicable: Super high-rise buildings (>100m), renovation of old residential areas
3. Box type non negative pressure water supply equipment (Hybrid type)
Principle: Combining the advantages of the first two, municipal water is prioritized for direct supply, and when insufficient, water is replenished from the water tank
Technical highlights:
✅ Dual water source intelligent switching, zero water outage risk
✅ Dynamic circulation of water in the tank to avoid stagnant water areas
Applicable to scenarios with high requirements for water supply continuity, such as hospitals and data centers