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conditions can be connected to pipe systems with a pressure as low
as 1.0 bar(e), equivalent to 100 kpa(e) or 15 psig. Precise information
about pressures, temperatures, consumption rates and connection
size for each medium is given in the Technical Data document. In
case of doubt, Technical Data always takes precedence.
• For closed systems: Normally the equipment is supplied via a
shutoff valve to a circulating system with a positive pressure of 3.5
to 6 bar(e), equivalent to 350 to 600 kpa(e) or 50 to 90 psig. Note that
the pressure in the return line must normally be at least 1.0 bar lower,
equivalent to 100 kpa lower or 15 psi lower . Precise information
about pressures, temperatures, consumption rates and connection
size for each medium is given in the Technical Data document. In
case of doubt, Technical Data always takes precedence.
Steam
The result of a sterilization is very dependent on the nature of the
steam used. The steam must therefore meet certain quality
requirements.
Steam generators based upon evaporation from high pressure hot
water should not be used since the steam produced is of inferior quality
for sterilization purposes.
Minimum cleanness requirements
The following are minimum cleanness requirements, but may be
regarded as normal requirements to be met by steam for heating in heat
exchangers and jackets. It is the user’s responsibility to choose the
steam quality for sterilization, taking account of local regulations and
official requirements.
1. Solid particles such as welding pellets, graphite, rust flakes, sand
etc must not occur, since the steam comes into physical contact with
the goods to be sterilized. These impurities may also block steam
traps and chokes.
The Technical Data document states a permitted pressure
range for all incoming media. Always check that the
equipment is connected to supply lines in which the
pressure is within the correct range.
Note that the pressure vessel safety systems cease to
operate if the pressure of any medium exceeds the range
stated in Technical Data. This results in a RISK OF
BURSTING!
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