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Grundfos CR 90 - Page 309

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 (KZ)
309
5.2  -
333      
      
 .
5.3     
    

CR, CRI, CRN 1- 20-   CR, CRN 32- 150-

3. .      
 
EPDM, HxxE    H  
  CRI  CRN  150 °C 
   15   (CIP)
.
CR, CRI, CRN  120 °C- 
     
.
5.4    
4. . CR      
"H"      :
H=p
b
x 10,2 - NPSH - H
f
- H
v
- H
s
p
b
=    .
  1    
.
  p
b
  
  .
NPSH =     
  .
     331-
NPSH   .
H
f
=       
    
  .
H
v
=      
 , 336- E  . t
m
=
 .
H
s
=   = . 0,5  
.
  "H"    ,  . "H" 
    .
  "H"    ,   .
"H"   .    
 "H"     .

p
b
= 1 .
 : CR 15, 50 .
 : 15
3
/.
NPSH (331-): 1,1   .
H
f
= 3,0   .
 : +60 °C.
H
v
(E-, 336-): 2,1   .
H = p
b
x 10,2 - NPSH - H
f
- H
v
- H
s
[  ].
H = 1 x 10,2 - 1,1 - 3,0 - 2,1 - 0,5 = 3,5   .
,  . 3,5     
.
   : 3,5 x 0,0981 = 0,343 .
   : 3,5 x 9,81 = 34,3 .
5.5    
334-      
. ,    + 
  (  ) 333- A 
     .
 334- B    1,5 
  .
Ескерту
     
    
.
Ескерту
     
   .
TM03 8853 4907
 


[]
. 
 [°C]
HQQE 0,37 - 45 -40 - 120 °C
HBQE 55-75 0-120 °C
HQQV 0,37 - 45 -20 - 90 °C
HBQV 55-75 0-90 °C
Ескерту
+120 °C-  
  - 
    
    .
-60 -40 -20 0 20 40 60 80 100 120 140
0
5
10
15
20
25
30
35
p [bar]
HQQE/V
HBQE/V
H
Q
Q
E
H
Q
Q
E
H
B
Q
E
H
Q
Q
V
H
Q
Q
E
t [°C]
TM02 0118 3800
Hv
H
NPSH
Pb
Hf

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