1. Single machine flow rate: 0.2m³/s-4.5m³/s
2. Lift: 2m-3m
3. Pump outlet static: 800mm-1000mm
4. Transport media: clean water, river water, wastewater, rainwater, sewage, and other liquids with similar physical and chemical properties to water.
5. Supporting electricity meter:

Power supply: 380V, 660V, 6000V, 10000V, 50Hz

Protection level: IP23, IP44.

Insulation level: B level, F level.

Operating environment temperature: 55 ℃; If the ambient temperature exceeds 40C, reduce the power and use it

6. Impeller rotation: When viewed from the TV, the impeller rotates clockwise
7. Other instructions

1) Water inlet form:

Horn water inlet is suitable for rectangular, polygonal, circular, semi-circular, snail shaped and other water inlet tanks.

2) Water outlet form

ZLB  traditional methods use 60 ° bend pipes for water outlet and flange interfaces.

Z LB/X products without transmission shaft are 60 ° bend pipes with flange interfaces for water outlet.

Z LB/1X products without transmission shaft are 90 ° bend pipes with flange interfaces for water outlet.

• The entire series has a wide range of models and specifications, with a uniform and reasonable distribution of varieties. Suitable products can be found within the range to meet various different working conditions.
• Traditional and driverless structural types are suitable for various different needs:

1. Traditional: Meet the traditional design of water conservancy engineering and the renovation of old pumping stations.
2. No drive shaft: A brand new structure of shaft and mixed flow pump. The traditional pump station building is installed on a double foundation (divided into motor layer and water pump layer). The pump station building without drive shaft can be installed on a single foundation, which can reduce the infrastructure investment of the pump station. The unit installation and maintenance are convenient, time-saving, labor-saving, and low-cost, overcoming the disadvantages of traditional pump installation, inconvenient maintenance, and high installation and maintenance costs.

• The pump has excellent hydraulic performance and high efficiency.
• Equipped with a universal motor, it is economical, easy to maintain, and has no risk of water ingress for submersible motors, ensuring safety and reliability.

Urban industrial and mining water supply and drainage, municipal engineering, sewage treatment.
Circulation and water upgrading in steel, metallurgy, power plants, shipbuilding, and water plants.
Water conservancy projects, river management.
Farmland irrigation, water plant breeding, salt farm, etc.

• Before installing and using the pump, check whether the product model is correct, whether the blade placement angle meets the requirements, whether the connections of each part are tight, whether there is any looseness or damage, whether the pump shaft and transmission shaft are bent, and if there are any, they should be corrected; The rigid coupling of the pump is connected to the pump shaft and transmission shaft respectively, and the nut is tightened; Clean the inside and outside of the water pump, as well as the connection and matching surfaces; The installation foundation elevation of the pump and transmission components is correct, and the embedded parts (such as foundation rings) have been installed. Use a spirit level to calibrate the pump foundation or base; After the cement slurry is poured and dried, the levelness should be checked. The inlet pool should ensure that the water flows directly into the water pump without vortices. A trash rack should be installed before entering the pool, and the flow rate of water passing through the trash rack should not exceed 0.3m/s. In addition, the water lubricated bearings of the pump must not come into contact with oil, and the open nut should be handled with a hook and wrench.
• Basic requirements and adjustments for water pump installation

1. The installation elevation of the pump body must ensure the minimum submergence depth specified for the pump when used at the lowest inlet water level. Ensure by the correct pump foundation elevation

2.The axis of the water pump and the axis of rotation should be ensured to be on the same vertical line, with a tolerance of 0.04mm/m *. After adjusting the installation surface of the pump components and the motor base to achieve the lead weight of the axis, the pump or transmission should be moved to achieve the flange surface of the coaxial rigid coupling. After that, the bolts should be uniformly and symmetrically tightened, and checked using a transparent method or a feeler gauge. There should be no gaps.

3. After the pump body is connected to the transmission part and fastened to the foundation, the spherical center of the spherical impeller in the pump housing runner chamber coincides with the spherical center of the impeller, with a tolerance of plus or minus 0.5mm * After ensuring the distance L between the pump bearing surface and the motor bearing surface, adjust the adjusting nut in the transmission, and pay special attention to the fact that the adjusting nut must be locked reliably after the adjustment of the locking washer
4. After the installation of the motor, the distance between the two planes of the motor coupling and the rotating shaft coupling is 3-5 mm * ensured by the correct distance L from the pump support surface to the motor support surface.
5. After the installation of the water pump is completed, the drive shaft should be turned flexibly without any friction. After installation, meeting the requirements of 5.1.2, 5.1.3, and 5.1.4 is a necessary condition for achieving this clause

When installing the pump layer in a closed manner, there is a rubber pad or O-ring between the pump and the foundation ring (gasket), and there is no leakage between the foundation and the foundation ring (gasket).

6. The water outlet pipeline should be supported separately, and the pump body support should not be used.
7. If there is a through wall pipe in the water pump outlet pipeline, it must be pre installed and the through wall pipe can be poured with concrete.
8. Gate valves should not be installed on the water pump outlet pipeline. If any, they must be safely opened before starting.

When using a check valve, it is best to install a counterweight to balance the weight of the valve cover and make the water pump operate more economically.

9.The bearing oil chamber of the transmission device lubricated with butter should be cleaned and refilled with lubricant during maintenance. The amount should be filled with 1/2-1/3 of the oil chamber to avoid excessive temperature rise during operation. Special attention must be paid, and rubber bearings must not touch oil.

Before starting the water pump, clean water should be injected into the short pipe at the upper filling culvert.

10.Before each start of the water pump, the coupling should be turned three or four times, and attention should be paid to whether there is any unevenness in weight. If there is, the cause must be checked and eliminated before operation

Before starting, the motor rotation direction should be checked to ensure it conforms to the direction of the water pump before connecting to the water pump.

During the operation of the water pump, the following points should be frequently noted:

① Is the immersion depth of the impeller sufficient, that is, whether the inlet water level is too low to avoid affecting the flow rate or generating early noise.

② Whether there is friction between the outer circle of the impeller and the impeller casing, whether there are debris around the blades, and whether the rubber or plastic bearings are too tight or burned out to prevent an increase in shaft power

③ Check if the fastening bolts are loose and if the center of the pump shaft and transmission shaft is consistent to prevent vibration of the unit.

11. Transmission components shall not be placed outdoors to prevent dust and water vapor from entering the bearings.

• Preparation before Test Run

1. Before the test run, all units should be correctly installed, debris inside and outside the machine should be removed, the site should be cleaned and leveled, and there should be enough submerged water in the water inlet pool
2. Inject an appropriate amount of lubricating oil into the bearing seat of the transmission components, with a suitable amount of filling chamber 1/2-2/3; Connect cooling water to the bearing seat with a cooling chamber

Before connecting the coupling, check the motor rotation to ensure that the water pump rotates clockwise when viewed from top to bottom.

3. The rotating pump shaft (transmission shaft) should be flexible and unobstructed
4. Adjust the pump packing appropriately and connect the lubricating water for the pump bearings (attention should be paid to distinguishing the leaking pipes of the packing and not mixing them up).
5. The effluent system is in good condition. The electrical control equipment instruments and other tests are verified to be correct and reliable.

• Starting and stopping

1. Thoroughly inspect whether all preparations have been completed
2. Transport clean water at the bearings on the pump. For products with a clean water lubrication device, the pressure of lubricating clean water must be greater than 0.2Mpa, and its water pressure and flow rate must be continuously maintained during pump operation; For products without a clear water lubrication device, the water supply can be stopped after the pump discharges water

3.After starting the water outlet, adjust the tightness of the packing packing to make the leakage drop and fail to form a line.

During the start-up process, attention should be paid to the electrical parameters and power readings of the motor, the water pump output, and the smoothness, vibration, noise, and other conditions of the unit’s operation. If there are any abnormalities, the machine should be stopped for inspection

During shutdown, attention should be paid to the reverse flow and vibration of the pump’s return water. For those with high vibration, the improvement of the pipeline system should be considered.

• Operation and maintenance

1.Pay attention to the level of lubricant in the transmission part, the temperature rise of the bearings, and the smoothness of the cooling system, and replace the lubricant regularly.

2.During operation, check and pay attention to the following:; The tightness of the packing packing, lubrication and cooling with clean water, vibration and noise of the unit, and operating

3.After shutdown during the freezing season, the pump components should not be submerged in water. The cooling water for the bearing seat in the transmission should be drained to prevent freezing and damage to the parts.

4. Transmission components shall not be placed outdoors to prevent dust and water vapor from entering the bearings.

1. Main pump, transmission components, motor (user can purchase by themselves), special tools
2. Order clearly for closed installation: foundation ring
3. Clarify other special supply contents proposed by the user

1.When placing an order, it should be specified: product name and model, performance parameters (flow rate, head or blade placement angle, speed, NPSHr), matching motor and requirements, pump installation method, motor layer installation form, L (L1) length, medium

2. Negotiate supporting components: anchor bolts, shutter doors, 30 bends, straight pipes, diffusion pipes, expansion joints, and connecting bolts, as well as requirements for materials other than conventional supply.

• Motor operating environment temperature: 40C; If the ambient temperature exceeds 40 ℃, please reduce the power for use.
• Water pump impeller rotation: When viewed from the motor downwards, the impeller rotates clockwise.
• Due to the inconsistent power levels of various models of motors, when selecting the actual power of the motor, the reason for the motor series may cause slight differences with the power values of the motor matching in the performance parameter table. The power of the matching motor in the performance parameter table is configured according to the highest head point. If the actual maximum head is low, the matching power can be adjusted according to the situation.
• The installation dimensions of the motor base for large motors with a power output of 450kW and above may be adjusted. Some motors require new designs, so the external installation diagram and dimensions are not listed in this sample. Please contact the technical department to confirm and provide them,
• The performance parameter curves of Z (H) LB/X and Z (H) LB/X are the same as those of the corresponding specifications of ZLB and HLB.
• Users select appropriate power allocation based on the highest head and operating angle.

I Water pump overload

II Water reduction

III pump does not discharge water

IV Water pump operation with noise or vibration