The pressure regulator (PR) is intended to
maintain constant outlet pressure. The regulation is effected through a change of regulator's hydraulic resistance.
The high grade of reliability is ensured by:
- high stability margin of the regulator with a throttling element designed under the principle "ejection out of a nozzle";
- welded design of bellows sensitive element at provision of stable elastic properties of the bellows.
| Characteristic | PR 1 | PR 2 |
| Flowrate, l/s | 0,012…0,326 | 0,012…0,44 |
| Characteristic | PR 1 | PR 2 |
| Inlet pressure, MPa | 16,6…21,7 | 7,5…9,8 |
| Flow passage conventional diameter, mm | 8 |
| Working medium | NTO, UDMH |
| Tuning pressure, MPa | 1,58 |
| Flowrate, l/s | 0,047…0,326 | 0,064…0,44 |
| Static accuracy, % | ±7 | ±9 |
| External leak rate, scc/s, max | 10-6 |
| Working medium temperature, °C | 0…65 | 0…45 |
| Mass, kg | 0,9 |
The pressure difference regulators are manufactured serially and are used in the space-rocket technology.
Application in hydraulic systems of the chemical industry and machine-tool industry. |