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YUZHNOYE SDO :: Aerospace Technology :: Aerospace Systems and Components :: Propulsion Components :: Control Units :: Pressure regulator

Pressure regulator

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.

CharacteristicPR 1PR 2
Flowrate, l/s0,012…0,3260,012…0,44

CharacteristicPR 1PR 2
Inlet pressure, MPa16,6…21,77,5…9,8
Flow passage conventional diameter, mm8
Working mediumNTO, UDMH
Tuning pressure, MPa1,58
Flowrate, l/s0,047…0,3260,064…0,44
Static accuracy, %±7±9
External leak rate, scc/s, max10-6
Working medium temperature, °C0…650…45
Mass, kg0,9

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.

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