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The pressure head soaking - up sleeves and hoses reinforced with a textile framework, a metal spiral, have soft cuffs on the ends.
The pressure head soaking - up sleeves and hoses have pronounced corrugated structure on length of all sleeve therefore they are often called the corrugated soaking - up hoses.
GOST 5398 - 76
The pressure head soaking - up sleeves and hoses are applied to absorption and forcing:
class B: waters technical.
class B: gasoline, kerosene, petroleum oils, various fuels.
class KShch: solutions of inorganic acids and alkalis concentration to 20% .
class P: feedstuffs (milk, beer, alcohol, wine, subacidic solutions of organic substances, waters).
class G: air, carbon dioxide, nitrogen, inert gases.
Temperature of operability of the pressure head soaking - up sleeves:
from - 35 °C to + 90 °C performed by At (for a temperate climate);
from - 50 °C to + 70 °C performed by HL (for a frigid climate.
The pressure head soaking - up hoses are issued on two groups:
group I - soaking up, vacuum of 0,8 atm. ;
group II - naporno / soaking up, vacuum of 0,8 atm. , working pressure 3, 5, 10 atm.
