No Negative Pressure Water Supply Equipment

PRODUCT NAME: No negative pressure Water supply equipmentof LZWIn order to make the equipment performance to be more perfect, We developed a new generation of the network pressure superposed water supply equipment in the original technique based on LZW (III) type pipe network pressure superposed (non negative) frequency conversion water supply equipment.Range of use
1. In order to adapt to the social development with the improvement of the living standard and qualit.
2. Additive pipe pressure (negative pressure) water supply equipment emerge as the times require, the device makes full use of the municipal pipe network pressure superposition, pressurized water supply, .
3. Superposition of pressurized water supply, small occupation of land, energy saving and environmental protection.
4. Tank structure superposed pressure (without negative pressure) water supply equipment long time over the municipal pipe network water supply operation condition of water use in the user, because the regulating tank storage capacity is limited, can not guarantee the normal water use of users, as well as the municipal pipe network short water, be no water available to the problem, in order to make the equipment performance to be more perfect, the company in on the base of original technology developed a new generation of the network pressure superposed water supply equipment of BW (III) type pipe network pressure superposed (non negative) frequency conversion water supply equipment.Working conditions
1. Environment temperature: 4 Centigrade ~40 Centigrade2. Relative humidity b): <90% (20 Centigrade), outdoor allow 95%, without dew;3. Vibration: <0.5g, vibration frequency 10Hz~150Hz, the maximum acceleration should not exceed 5m/s2;4. Tilt: <5 °5. Frequency: 50 Hz ± 5%;6. Power supply voltage: 380V ± 10%;7. Altitude: Not more than 1000m;8. Equipment operation site should be no conductive or explosive dust, non corrosive metal or gas insulation failure or steam;9. Pressure precision: <0.01Mpa;10. Ressure range: 0~2.0Mpa J);11. Flow range: 0~600m3/hfault phenomenonfailurecauseeliminationmethods1.No power supply or one or two phase power supply is needed
Check all phases of power supply and restore power supply
2.Poor contact of ac contactor and burning of coil
Repair or replace contactors
cannotstart3.
The power switch is not closed, malfunction or damaged
Close the switch and replace it if the power indicator does not turn on4.
Thermal relay trip or damage
Check whether the motor is blocked, find out the reason and eliminate it.Manual reset is replaced if it cannot be startedWater level is too low
Put water in the sink
The motor burned
Repair or replace the motor
1.Line is loose
Check wiring and tighten connectors
2.Frequency converter malfunctionCheck the fault content, check the cause according to the frequency converter manual, and restart after reset.Or disconnect the inverter power supply for a few seconds, the inverter fault reset before starting.The manual is normal3The frequency converter is damagedRepair or replaceAutomatic transmission failure4.Pressure switch damageRepair or replace5The pressure transmitter is damagedRepair or replace6.Switch failureRepair or replacePump non - suction pressure gauge pointer to beat violentlyInsufficient water supply for perfusion, air leakage at the connection between pipeline and instrumentCheck pipeline and bottom valve, refill water diversion. Tighten air leakage
The pump consumes too much power
Too much flow, impeller wear
Check whether the pump shaft is bent, replace the impeller, close the outlet valve to reduce the flow