Constant pressure variable frequency water supply unit
Description
Complete integrated assembly consisting of stainless‑steel vertical multistage pumps, VFD control cabinet, pressure transducer, pressure tank, valves and base frame. Real‑time pipeline pressure feedback enables frequency converter to adjust pump speed automatically and maintain constant system pressure. Can work with stainless‑steel water tank to form complete secondary water‑supply pump‑house system. Widely applied in building secondary water supply, residential communities and commercial buildings. Energy‑saving and stable water supply. OEM & ODM available.
Key Features
‑ Closed‑loop VFD control, pump speed adjusts automatically according to water consumption, stable pipeline pressure with little fluctuation
‑ Multi‑pump cyclic rotation to balance running hours and extend service life
‑ Multiple protection: water shortage protection, overload, over‑voltage, fault alarm for safe operation
‑ High‑efficiency SS304 / SS316 vertical multistage pumps, safe for drinking‑water application
‑ Pre‑assembled complete unit, only requires inlet‑outlet pipe connection on site
‑ Remarkable energy‑saving performance, greatly reduce power consumption compared with traditional fixed‑speed water supply
‑ Equipped with touch‑screen for local operation; remote monitoring function optional
‑ Compatible with stainless‑steel water tank for full‑set pump‑house solution
Technical Data Range
‑ Unit flow rate: 5‑300 m³/h
‑ Working head: 20‑240 m
‑ Working pressure: 0.4‑2.4 MPa
‑ Pump quantity: 1‑6 units (2‑4 units common configuration)
‑ Power supply: 380‑400V 50Hz three‑phase, 60Hz customizable
‑ Wetted material: SS304 / SS316 for pumps and pipelines
‑ Control mode: PLC + VFD cabinet, closed‑loop pressure‑sensor control
‑ Optional accessories: stainless‑steel water tank, pressure tank, remote monitoring, touch screen
‑ Medium: Drinking water, clean particle‑free fresh water
Applications
‑ Secondary water‑supply pump houses for high‑rise residential buildings
‑ Water‑supply systems for commercial malls, hotels and office buildings
‑ Domestic & process water supply for factories and industrial parks
‑ Public buildings: hospitals, schools
‑ Municipal water boosting pumping stations
‑ Renovation & upgrade of old pump‑houses