Drazice OKCE 160 NTR Kullanım ve Kurulum Kılavuzu - Sayfa 10
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mounting
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Please find necessary pressure values in the below Table 3. For proper safety valve operation, a backflow
valve (Figure 4) must be mounted on the inlet pipes, preventing spontaneous heater draining and hot water
penetrating back into the water main. We recommend that the hot water distribution from the heater was
as short as possible to minimise heat losses. At least one demountable joint must be mounted between
the tank and every supply pipe. Adequate piping and fittings with sufficiently dimensioned maximum
temperature and pressure values must be used.
Figure 4
ALLOWABLE
SAFETY VALVE
OPERATING
START-UP
OVERPRESSUR
PRESSURE
E OF WATER
[MPa]
HEATER [MPa]
0.6
0.7
1
Table 3
Heaters must be provided with a discharge valve
mounted on the cold service water inlet to
the heater for potential disassembly or repair. When
assembling
the
security
the standard.
MAXIMUM
PRESSURE IN
COLD WATER
PIPES [MPa]
0.6
up to 0.48
0.7
up to 0.56
1
up to 0.8
equipment,
follow
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