Details

Specification

 

ModelDisplacement 
Code
Geometry 
Displacement 
mL/r
Anti-wear oil or 
Phosphate ester liquid
Weight 
Kilograms
Maximum Pressure 
MPa
Maximum Speed 
r/min
20VQ27.514270012
310.2
412.8
516.721
619.2
722.9
826.2
928.8
1031.0
1135.0
1237.916
1444.214

 

Note: ①When the working fluid is phosphate ester liquid, use special seal (FPM). When ordering, add the prefix [F-] before the specified model. ②The outlet pressure must always be higher than the inlet pressure.
②The outlet pressure must always be higher than the inlet pressure.

 

Model Code

 

Img

 

 

Installation and Use

 

1. During installation, the concentricity tolerance of the pump shaft and the motor must be less than 0.10 mm (TIR), and the maximum allowable angular error must be less than 0.2 degrees. Use a flexible coupling; the pump shaft must not bear radial and axial loads; the bracket must be strong, rigid, and able to fully absorb vibrations.
2. Set the suction pressure of the pump inlet port: The recommended inlet pressure is 0 to 35 Kpa.
3. The oil should be kept clean, and the pipelines and oil tank must be thoroughly cleaned; the cleanliness of the oil should be within NSA12.
4. Normal pump operation (under rated conditions) is based on the use of SAE10W oil (or equivalent viscosity) in the range of 38℃ to 82℃.
5. Check the inlet, outlet, and rotation direction before starting the pump. After fixing the pump, manually rotate the pump shaft smoothly and flexibly. During the first start-up, if the pump does not pump water immediately, air should be drained from the pump's delivery pipeline.
6. During the first use, the pump body and oil suction pipe should be filled with oil, and the pump should not run without oil.
7. Do not start the pump when the outlet pressure is lower than the inlet pressure. This will cause operating noise and blade instability.
8. Cold start conditions: When operating SAE10W oil, the viscosity is in the range of 860 to 40 cSt, and the speed and pressure should be limited to 50% or less of their respective rated values until the system warms up. When the fluid viscosity is greater than 860 cSt, extreme care must be taken when starting the equipment, and attention should be paid to heating the entire system, including remote cylinders and motors.
9. At high temperatures, the viscosity should not be lower than 13 cSt, and the temperature should not exceed 99℃, because the expected life of the card-type airbag and elastomer will be reduced.

 

Installation Connection Dimensions

 

 

 

◎ Str. Key shaft

 

ModelShaft CoolingABCDEF Key 
Width × Length
20VQ1599.512.022.225/22.2024.5/24.354.75×32

 

 

◎ Spline shaft

 

ModelShaft CoolingABCDESpline Data
Number of Teeth 
Number of Teeth
PitchMajor Diameter 
Minor Diameter
Square Root 
Minor Diameter
Matching 
16/32
20VQ15141.19.511.13.927.81322.17/22.1518.63/18.35Major Diameter FitLarge 
diameter fit

 

Get Quote

Welcome to leave a message, there may be a discount

Note: Please leave your contact information and our professionals will contact you as soon as possible!