KRYOCLIM gb janvier 2004 - Glynwed A/S

KRYOCLIM ® SYSTEM
2000
GENERAL CHARACTERISTICS
OPERATIONS CONDITIONS
Technical Sheet
1.4
WORKING PRESSURE AND TEMPERATURE
10 bar from - 30°C to + 20°C
(PMS)
10 bars
MAXIMUM WORKING
PRESSURE
The flow temperature of some networks (such as process or
defreezing of convection fans) can reach more than 20°C.
KRYOCLIM ® allows a maximum temperature of 40°C with a
maximum pressure of 7 bar.
7 bars
Fluid Température
temperature
du fluide
■ WORKING LIFETIME :
-30 -20 -10 0 10 20 30 40 (°C)
The working pressure and temperature indicated in the following tables are determined for a working life of 50
years without interruption.
Working pressures according to working temperatures are figured out by using regression curves as per standard
NF T 54-091.
■ TESTING PRESSURE
PN
Testing pressure
1 hour (20°C)
4,2 PN
10 42 bars
2,5 PN
1 heure 100 h 1000 h 10 000 h 50 ans
A pressure pipework can be classified as PN 10 (with a safety factor of 2.5 after 50 years) if it can tolerate, during
one hour, a pressure equal to 4.2 times this PN. The characteristics of the system can only be guaranteed to 50
years by combining these two parameters.
The readings for the breaking pressures for KRYOCLIM ® change, as shown in a straight-line in logarithmic co-ordinates.
Considering the safety cœfficients, the pressure ratio between 50 years and one hour ranges from 4.2 to 2.5. This
straight line is drawn on the basis of the 1 hr, 100 hr, 1000 hr and 10,000 hr tests, and is then extrapolated to 50
years.
■ GARANTIES :
• For all applications specified in the technical documentation, regardless of pipe diameter, GIRPI has an insurance
to guarantee installations which are carried out in accordance with its own general recommendations, and which
respect the temperature and pressure conditions and the nature of fluid specified above.