? Posted: small European online QQ:? 1922601218 Mobile:? 159-7414-3465 box no negative pressure water equipment Scope 1, high-rise buildings, urban areas, enterprises and other units of life, fire water. 2, all kinds of water plants, water supply stations, sewage waste water plants, airports and agricultural irrigation stations and other water systems. 3, drinking water pipes, sewerage, fire water supply and so on. 4 large squares, green belt irrigation. 5, fire water, industrial and mining production water, mining and water recycling constant voltage control. 6, the original old-fashioned water supply system further energy conservation, energy transformation. 7, using the original transformation of the existing pressure tank pressure water supply system. Box no negative pressure water equipment technical parameters 1, flow range: 0 ~ 5000m3 / h Humidity: 0 ~ + 50 ℃ 2, pressure range: 0 ~ 2.0Mpa Ambient temperature: ≤90% 3, control power: ≤350kw Power : 380V × (1 ± 15%) 4, the pressure regulation accuracy: ≤0.01 Mpa steady flow accumulator volume: 0.5m3 ~ 50m3 box no negative pressure water equipment Features 1, the use of advanced computer technology (PLC), computer control, frequency control, energy efficient. 2, the water pressure is stable, water quality is greatly improved. 3, the pump speed and change with the water flow, and the flow adjustment range from zero to the rated flow continuously adjustable. 4, whether single or multiple pumps, soft start can greatly improve the service life of equipment. 5, with automatic frequency, frequency automatic, manual operation mode, alternately running, mutual backup, reliable, easy to operate. 6, multi-function, high-tech, electronic control has been cut, overcurrent, overvoltage, overheating, short circuit, stall protection features, low water alarm. 7, wide application, the user can choose the pump type, size, number of units and the use of functional requirements. Box no negative pressure water equipment works 1, when the device is in automatic control, the whole system needs boosting. Variable speed pump drive by the P0-frequency operation to work, fill water into the tank first, after the inflow through the check valve pressure tank, the tank pressure, flows into the pipe through the water pipes. 2, when the water continues to increase, more than P1 pump-frequency operation, the remote pressure gauge continues to send a signal to turn on the pump P2, P2 pump water consumption increases with the same frequency by frequency conversion work to work, if the flow at this time and when the pressure is still not sufficient, you can continue to increase the P3 pumps work to meet the needs of the whole system. 3, if this time the pressure has been met, the P2 into the pump by the power frequency inverter work until the pump stops so far. P1 pump the same. 4, when the water is equal to zero, the system pressure remains constant, the pump stops working, continue to rely on the water tank pressure to maintain system pressure, reaching energy saving effect. ? Posted by:? Small European online QQ: 1922601218 Mobile:? 159-7414-3465