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MAC Valve's purpose is to provide air valves which meet the changing requirements of industry by continually advancing air valve technology through design.

Please note all Cv's listed are Average All Ports. For a more detailed listing, please consult your MAC catalog or local MAC representative

Small 3 Ways

sml3w.GIF (6995 bytes)

 Cv
32 0.40
34 0.10
35 0.18
37 0.40
100 0.18
200 0.50

Large 3 Ways

Cv - Inlet to Cylinder
lrg3w.GIF (8579 bytes) 1/8 1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2
38 N/C 1.0                  
38 N/O 1.1                  
52 N/C 1.1 1.5                
52 N/O 1.1 1.5                
55 N/C   1.4 1.6              
55 N/O   1.8 2.2              
56 N/C     4.4 5.0 5.4          
56 N/O     4.6 5.1 5.7          
57 N/C       9.0 12.7 15.9        
57 N/O       10.0 13.7 17.4        
58 N/C           18.7 23.0 24.9    
58 N/O           20.8 23.8 23.0    
59 N/C                 55.0 60.0
67         14.5 20.0        
Cv - Cylinder to Exhaust
  1/8 1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2
52 N/C 1.2 1.4                
52 N/O 1.2 1.4                
55 N/C   2.5 2.5              
55 N/O   1.6 1.6              
56 N/C     6.0 6.1 6.2          
56 N/O     5.6 5.6 5.7          
57 N/C       11.0 18.2 19.9        
57 N/O       11.0 15.3 17.2        
58 N/C           31.2 32.5 33.5    
58 N/O           29.4 30.2 32.5    
59 N/C                 60.0 65.0
67         14.3 19.2        
Small 4 Way
sml4w.GIF (8820 bytes)   42 44 45 47 48 700 400 800 900 1800
Individual Body 10-32 0.3 0.1 0.12              
1/8     0.14     0.6 1.0      
1/4           0.7 1.0 1.4 1.2 1.1
Stacking Body 10-32     0.15              
1/8     0.18     0.7     1.2  
1/4           0.8   1.4 1.4 1.1
3/8               1.4 1.4 1.1
Manifold Bar   0.08 0.17       1.0 1.3   1.1
10-32     0.10              
1/8     0.11   1.1          
1/4 0.4                  
Wattage 1.0W       0.30            
2.4W       0.35            
5.2W       0.50            
3 Position               0.8 1.1    
Large 4 Ways
lrg4w.GIF (10446 bytes)   82 6200 6300 6500 6600 1300 92 93 ISO1 ISO2 ISO3
2 Position 1/8 0.9           1.0        
1/4 1.3 1.5 2.0       1.1   1.6    
3/8 1.35 1.6 2.6 4.5     1.2 3.4 1.6 3.0  
1/2     3.0 5.0       3.8   3.0 6.3
3/4       5.1 9.0 11.5         6.3
1         9.6 13.7          
1-1/4           15.4          
1-1/2           15.9          
3 Position 1/8 0.9           0.8        
1/4 1.0 1.1 1.7       0.8   1.4    
3/8 1.0 1.2 2.1 2.8     1.0 3.2 1.4 2.7  
1/2     2.4 2.9       3.6   2.7 5.8
3/4       3.0 7.0 10.8         5.8
1         7.2 12.8          
1-1/4           14.3          
1-1/2           14.3          
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