Used for corrosion-free cold and hot water transmission in air conditioning, heating, sanitary water, water treatment, cooling and refrigeration systems, liquid circulation and water supply, pressurization and irrigation deliver.

Medium solid insoluble matter, its volume does not exceed 0.1% per unit volume, and the particle size is <0.2mm;

Speed: 2960r/min, 1480r/min

Flow range: 40~1600m³/h

Lift: ≤55m

Medium temperature: -10℃~80℃ 80℃~120℃ (high temperature resistant mechanical seal, O-ring seal, flushing plan)

Ambient temperature: maximum +40℃; altitude less than 1000m; relative humidity not more than 95%

Maximum working pressure (pressure) of SGW model =1.6MPa, test pressure 2.1MPa, pressure material of parts; grey iron / ball iron

1. Comparison of actual measurement results between Kaiquan and imported brand 1-square pumps:

The test compared 13, 6 were 2-5% higher, and 7 were equivalent;

2. Comparison of actual measurement results between Kaiquan and imported brand 1 horizontal pumps:

The test compares 5, the efficiency is equivalent

3. Comparison of actual measurements between Kaiquan and imported brand 2:

The test compared 7, 5 were equivalent, 2 were 4-7% higher

4. Comparison of actual measurements between Kaiquan and domestic brands 1:

Test comparison: 7, 4 are 3-8% higher, 3 are equivalent

When the cast iron impeller is severely rusted and the ring wear gap increases, the efficiency drops significantly by 7-8%, and the annual operating cost increases by more than 75%. A stainless steel impeller is used.

The whole life cycle cost improvement after the wear-resistant ring has obvious advantages.

Water pump core impeller-quality control

Impeller blank entering factory inspection

Main control points: flow channel quality, material, blade size

1. Handheld endoscope

Ensure the quality of the impeller flow path and ensure performance;

2. Direct reading spectrometer

This equipment is a high-precision and high-value optical emission spectrometer imported from Germany. It can perform rapid quantitative analysis of C, Si, Mn, P, S, Cr, Ni, etc. in metals and can accurately determine

Determine whether the material meets the standard;

3. Special inspection tools

Ensure blade profile line, entrance angle and exit width

The mechanical seal adopts Burgmann/John Crane, and the stainless steel bushing in the sealing position and the mechanical seal will never rust. The mechanical seal failure rate is reduced from 2% to 0.9%.

The bearings adopt the SKF brand, which has low noise and long service life. Theoretically, it can reach 100,000 hours. The bearing failure rate has dropped from 1.6% to 0.7%.

The pump body and pump cover are made of coated sand casting technology, machine-shaped, smooth surface, uniform roughness, fine, uniform, and without defects. The casting size accuracy is high, and the accuracy can reach CT7-8. The appearance quality is good, the structure is dense, and the surface roughness of the casting is less than 12.5, which ensures the performance of the pump;

The pump body and pump cover are processed by LGMazak, DMG and other imported dual-workbench four-axis machine tool processing centers. The processing accuracy is 2μm, the processing quality is stable, and one-time assembly.The clamp completes the processing of the entire part, ensuring the accuracy and geometric tolerance requirements of each processing part.

The impeller is processed by a DMG dual-spindle machining center imported from Germany. The coaxiality of the workpiece can reach 0.01mm. The entire part can be processed in one clamping, ensuring that each requirements for accuracy and geometric tolerance of processing parts.

Precision casting impeller hydraulic center and parts center almost overlap, lay particular stress on less, using the Italian import CEMB automatic balance machine balance, mechanical operation, dynamic balance machine automatic detection, automatic weight, automatic retest, balance accuracy up to G1, eliminate artificial factors, ensure the impeller balance accuracy G6.3, good rotor balance, high reliability.

The pump body and the pump cover mold are directly processed into the whole body according to the CNC machining center according to the process requirements to ensure that the size error of the mold is controlled within 0.2mm, and the impeller adopts precision metal casting mold.

Five axis five linkage machining center, CNC boring and milling machine and other large high-end processing equipment and special aircraft tooling, in the domestic enterprises in the leading level, is the pump body, pump cover and other parts processing and manufacturing quality reliable guarantee.

The impeller is dynamically balanced to ensure smoother operation of the entire pump.

The pump shaft is adjusted to ensure the mechanical properties and the reliable operation of the pump.