Axial Piston large pressure variable pumps are utilized for the pumping and metering of polyurethane factors&period
The certain benefits supplied by the A2VK variable pumps are&colon
L Higher metering accuracy and repeatability of the variable flows
L Manual control by means of handwheel with constructed-in-precision measuring scale
L Operating pressure up to 250 bar
L Minimal suction stress&comma even when pumping very viscous fluids
L Quite little pulsation of flow
L Compatability of pump elements with supplies to be pumped &lparCZPTol&comma Isocyanat&rpar via use of specifically matched supplies and particular seals
L Peaceful operation
L Optimum volumetric performance
CZPT info
Mounting Placement
Optional&semi The device need to often be loaded with oil&interval
With MA manage system&colon Axis of handwheel need to be horizontal&comma due to the fact of situation indicator&time period
Running Force Selection-inlet side
Open up circuit&colon
Prefill force one – three bar complete at suction port S
Shut circuit&colon
Sum of combined pressures at A and B≤ 250 bar &lpar 320 bar for brief time period&rpar&comma match leakage line at port T&interval
Running Stress Variety – outlet aspect
Strain at port A or B
Nominal stress pN &equals 250 bar
Peak strain pmax &equals 320 bar
| Dimension | 12 | 28 | 55 | 107 | ||
| Displacement Vg max | cm three | 11.six | 28.one | fifty four.eight | 107 | |
| Movement Qmax in open circuit and at velocity (at a viscosity of v=36mm 2 /s) |
n=735rpm | l/min | 8.three | 20 | 39 | seventy six |
| n=970rpm | l/min | 10.nine | 26 | fifty one | a hundred | |
| n=1450rpm | l/min | sixteen.three | 39 | 77 | 150 | |
| Power at delta p=25MPa and velocity |
n=735rpm | kW | 4 | 9 | seventeen | 33 |
| n=970rpm | kW | five | 12 | 22 | forty three | |
| n=1450rpm | kW | seven | seventeen | 33 | sixty five |
Direction of movement
| Swivel Route | Clockwise Rotation | Anti-clockwise Rotation | ||
| Open Circuit | Closed circuit | Open Circuit | Closed circuit | |
| Clockwise | S to B A plugged |
A to B | S to A B plugged |
B to A |
| Anti-clockwise | S to A B plugged |
B to A | S to B A plugged |
A to B |