Non-Negative Pressure Multi-Stage Stainless Steel Centrifugal Pump Water Supply Equipment

• Max.Head: >150m
• Max.Capacity: 300-400 L/min
• Pressure Medium: Water
• Type: Handheld
• Position of Pump Shaft: Vertical Edge
• Certification: CE, ISO, RoHS
• Model NO.: WZ
• Series: Wz
• Transport Package: Wood Box
• Specification: CE
• Trademark: Liansheng or OEM
• Origin: Shanghai, China
• HS Code: 84101330
• Production Capacity: 2000

Product Description

PRODUCT NAME: voluntarily water supply equipment

1, the installation conditions

 equipment should be installed in the interior, the foundation for concrete platform level, and can guarantee that the equipment in normal Leveling the ground work;water should be able to self filling into the pump chamber and inlet pressure of not more than 0.5Mpa, the water quality should be consistent with fire code requirements;
ambient temperature 0~50  not frozen, the humidity is lower than 90 no condensation, non corrosive gases, non flammable and explosive gas;Allow the altitude 1000m;

2, installation and commissioning

Installation department according to the design drawings related requirements will pipe network and equipment installation, cleaning, pressure test, and have the power,
Water can be adjusted, by customers in advance notice to the company sent to the scene to assist in debugging.according to the provisions of examination and connected with the power line and signal line;fire pipeline system quality inspection for electricity, water before;the pressure gauge in accordance with the provisions of regulation to the lowest voltage stabilizing the system working pressure, the maximum working voltage system pressure, start the main fire pump working pressure;start and trial operation, to manually start the pump, check the pump working condition running direction and accessories, instruments, normal and transformed into automatic files to the parameters meet the design requirements.In

3,the matters needing attention

HHL, WZ, W series equipment, in order to installation convenient, can be divided into many parts packed, transported to the site after the assembly;
the equipment accessories, instruments are installed on the device, but the motor connection site, control power
Cable, connecting line is not in the scope of supply;

increase based on the standard functions such as function of the equipment at the same time, please when ordering request written technical accurate as the annex to the contract;

The electric control cabinet? Write: start mode, control the number of pumps, pump power, signal interface as the annex to the contract.

fire minimum working pressure equipment: should not be less than 0.15Mpa

equipment fire rated flow should not be less than 10L/s

fire rated working pressure of equipment shall not be less than 0.3 Mpa

compensation water volume or effective volume of water equipment: should not be less than 0.3m3

HHL series equipment should be based on the need to set pressure tank, pressure tank volume should not be less than 0.3m3

fault phenomenon	failure cause	elimination methods
	1.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
can not start	3. The power switch is not closed, malfunction or damaged	Close the switch and replace it if the power indicator does not turn on
	4. 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 started
	Water 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 malfunction	Check 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 normal	3The frequency converter is damaged	Repair or replace
Automatic transmission failure	4.Pressure switch damage	Repair or replace
	5The pressure transmitter is damaged	Repair or replace
	6.Switch failure	Repair or replace
Pump non - suction pressure gauge pointer to beat violently	Insufficient water supply for perfusion, air leakage at the connection between pipeline and instrument	Check 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