www.jihlavan.czHydraulic Accumulators
These membrane hydraulic-pneumatic devices are used as a source of pressurized fluid in the event of a sudden drop of pressure, or as a shock absorber in hydraulic systems.
The spring environment is based on technical nitrogen that is contained under pressure in the accumulator’s rubber bag. The filling pressure of the gas is adjusted with the aid of a filling device named PP 8.
We carry accumulators in three volume modifications:
Technical data:
| Nominal volume Vn | dm3 | 0,4 | 1.0 / 2.5 |
| Nominal pressure pn | MPa | 16 | 20 |
| Gas filling pressure | MPa | max. 8 | |
| Work fluid | mineral oil, e.g., OT - H3 | ||
| Ambient temperature | °C | - 20 to 55 | |
| Fluid temperature | °C | - 20 to 80 | |
| Nominal fluid filtration | µm | min. 40 | |
| Admissible range of viscosity | mm2.s-1 | 3 to 1500 | |
| Work position | vertical (outlet branch "K" downwards) | ||
| Filling gas | technical nitrogen as per ČSN 65 4335-N 40- | ||
| Minimum mean technical life | cycles | 5. 105 | |
| Minimum mean life before failure | cycles | 3. 105 | |
| Ratio of nominal pressure and gas filling pressure must not exceed value 4 | |||
| Shortest filling and emptying time | 0.5s | for Vn 1,0 | |
| 1.0s | for Vn 2.5 | ||
| Climatic endurance | N 1 as per ČSN 03 8805 | ||
|
Device symbol |
Catalog number |
a (mm) |
b (mm) |
L (mm) |
D (mm) |
Dk (mm) |
Max. gas volume (dm3) |
Weight (kg) |
| A -16 - 0,4 |
051 801 |
72,5 |
24 |
150 |
90 |
100 |
0,3 |
2,1 |
|
A - 20 -1,0 |
052 810 |
104 |
24 |
200 |
120 |
160 |
1,5 |
4,6 |
|
A - 20 -2,5 |
053 803 |
120 |
24 |
225 |
138 |
190 |
2,7 |
6,8 |
Filling Pipe HP 3232
Filling pipe for filling hydraulic accumulators A16-04, A20-1 and A20-2.5 with technical nitrogen.
Technical data:
Filling pressure up to 10 MPa
Work environment technical nitrogen
Work temperature -55°C to +60°C
Weight 0.35 kg
Filling apparatus supplied as per technical conditions TP 0017-15-57.
Filling Pipe PP 8
The filling pipe is used for filling, emptying, and measuring the pressure of nitrogen in hydraulic accumulators A16-04, A20-1, and A20-2,5. It consists of the pipe proper, a hose with a threading for screwing onto a pressurized bottle, and a manometer A 60 (0 to 16 MPa).
Technical data:
Filling pressure max. 8 MPa
Filling gas technical nitrogen
Ambient temperature -20°C to +55°C
Weight 1 kg
