НУжно перевести текст, а переводчик выдает технический перевод.
The air pilot safety valve, operated by air from the turbine centre casing, provides a safety feature which protects the auto-drain system from excessive pressure and temperature in the event of solenoid failure. The valve is closed by air during turbine operation and is held open by an integral spring at all other times.
A hand-operated ball valve is located at the fluid outlet port. The valve is normally padlocked in the open position and will only be used for test purposes.