Runxin N74A3 - Service Condition

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
5
1.3. Service Condition
Runxin Valve should be used under the below conditions:
Items
Requirement
Working
conditions
Water pressure
0.2 MPa～0.6 MPa
Water
temperature
5℃～50℃
Working
environment
Environment
temperature
5℃～50℃
Relative
humidity
≤95%（25℃）
Electrical facility
AC100～240V/50～60Hz
Inlet water
quality
Water turbidity
＜5FTU
Water hardness
First Grade Na
+
＜6.5mmol/L；
Second Grade Na
+
＜10mmol/L
Free chlorine
＜0.1mg/L
Iron
2+
＜0.3mg/L
CODMn
＜2mg/L(O
2
)
In the above table, First Grade Na+ represents First Grade Na+
Exchanger. Second Grade Na+ represents Second Grade Na+ Exchanger.
 When the water turbidity exceeds the conditions, a filter should be
installed on the inlet of control valve.
 When the water hardness exceeds the conditions, the outlet water
hardness will hardly reach the requirement of boiler feed water（0.03
mmol/L）. It is suggested to adopt second grade softener.