Clean water, river water, wastewater, rainwater, sewage and other liquids with similar physical and chemical properties to water.

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

Protection level: IP23, IP44.

Insulation grade: Class B, Class F.

Operating ambient temperature: 55℃; if the ambient temperature exceeds 40℃, reduce the power.

Looking down from the motor, the impeller rotates clockwise.

Product structure diagram — (pump bears axial force)

Product Structure Drawing II (Pump bearing axial force)

1. Breakdown of “traditional” and “drive shaftless” structures:

Traditional type: It is the traditional typical structure of vertical axial flow pump.

• In the pumping station, the pump body is placed on the water pump layer, and the motor and transmission part are placed on the motor layer. A proprietary transmission shaft connects the motor and the water pump.
• The motor, transmission part, pump rotor weight and pump water axial force are borne by the motor layer, while the water pump layer only bears the weight of the pump shell components and other external forces during operation.
• The water pump has two types of water pump layer installation structures: open (wet type) or closed (dry type). The pump is designed to be hoisted from the motor layer hoisting hole, making maintenance and installation easy.
• The length of the transmission shaft can be configured according to the user’s different motor floor elevations. When the transmission shaft is too long, it is equipped with intermediate supporting components, and the pump station must have a corresponding supporting foundation.
• When there are transmission components, there is a transmission shaft adjustment nut, thereby adjusting the center position of the pump impeller, which can compensate for the elevation error caused during installation.

Structure without drive shaft:

• The pump is directly connected to the transmission components. There is no special transmission shaft in the entire water pump device. The pump station does not need to have a motor layer; the weight of the water pump, transmission components, motor and water axial force are all equal.There is a water pump layer foundation to bear.
• The pump seat (elbow) and the water pump layer are installed in the closed type (dry type) structure form.
• Adding pipes of different lengths and lengthening the pump shaft between the elbow and the guide vane body can meet the different elevation requirements of the water pump layer of the pump station. When the pipes are long, the pump shaft is connected in sections and is equipped with a pump intermediate (water) bearing.
• The lower part of the coupling is equipped with a pump shaft adjusting nut, which can fine-tune the center position of the pump impeller, and is equipped with a reliable adjusting nut locking and anti-loosening device.
• Since the transmission components are integrally connected to the pump, the connection size and geometric tolerance requirements are ensured by the manufacturer’s finishing and assembly. This not only greatly reduces the installation requirements of the pump station, but also overcomes the problem of basic installation of the transmission components and pump parts for products with a transmission shaft structure. At the same time, both of them have shortcomings such as high neutrality requirements, small allowable error in elevation, and high labor and effort.

2. The impeller has an adjustable structure. After the impeller components are removed, the blade placement angle can be adjusted.
3. The journal of the pump shaft and the water guide bearing is inlaid with a stainless steel sleeve, which has good wear resistance and anti-rust properties.
4. Shaft seal

The shaft seal is a packing seal, and the water seeping out of the packing is collected and discharged through the drain pipe.

5. Water bearing lubrication

In order to adapt to the sewage medium with certain particles or impurities and protect the water bearing, a pump shaft sleeve is installed outside the pump shaft, and there are seals at the two ends of the pump shaft sleeve. Generally, clean water with a pressure 0.2MPa higher than the pump head is used. It is injected from the water-lubricated connecting pipe at the upper part of the elbow, lubricates and cools the water bearing from top to bottom, and then flows into the pump medium.

6. Special bolt seal

During closed (dry) installation, a special bolt sealing gasket is placed between the connecting bolts of the guide vane body and the elbow, and the contact surface between the hexagonal end of the hexagonal bolt and the elbow flange to prevent water from the inlet pool from seeping into the water pump layer through these bolts leak.

7. Foundation ring and pad

For the water inlet type of the horn, a foundation ring (embedded part) should be installed when the water pump layer is closed (dry type). The foundation ring and the water pump layer foundation are embedded as required and are solid and impermeable. A seal must be placed between the water pump and its connecting surface. Pad (ring) to prevent water from the inlet pool from penetrating into the water pump layer: As for the convection channel water inlet method, the pump base structure is connected with the open type and the foundation pad, which is actually a dry device.

The connection between the embedded foundation ring of the water inlet and the pump inlet must take into account the water seepage problem.

8. Other

The straight pipes, 30° bent pipes, telescopic joint parts, etc. after the pump outlet elbow are all accessories for the pump, and the user can provide matching accessories according to needs.

1. Regular supply

Horn, guide vane body, elbow, impeller seat, motor seat: HT200/Q235 pump shaft, transmission shaft: 45# steel; blade: ZG270~500 water guide bearing: HT200+ natural rubber shaft seal: oil-immersed stone Ink packing.

2. Optional supply

Blades: Bronze, stainless steel, ductile iron Impeller seat: Bronze, stainless steel, ductile iron Pump shaft: 2Cr13, 40Cr Water bearing: HT200+polyurethane rubber/Sailon Other pump parts materials proposed by users will be agreed upon at that time.