The MAC 400 Series is a 5-way spool valve pilot operated by a small direct operated 5-way solenoid valve - a one-off in air valve manufacturing.  The 5-way pilot means a low minimum operating pressure - no pistons - and minimal resistance to shifting.  The balanced design in the pilot means shifting forces are consistently high and response times are repeatable regardless of inlet pressure fluctuations.
 
| Function | 
Port size | 
Flow (Max) | 
Mounting | 
| 5/2 NO-NC | 
 1/4" 1/8" 
 | 
1.100Nl | 
Inline | 
 
 
 
 
| 
    SERIES FEATURES 
 • The Patented MACSOLENOID® with its     non-born out feature on AC series.
  • Seven valve functions in one valve.
  • Balanced spool unaffected by back pressure in    the exhaust or by inlet restrictions.
  • A large checked accumulator which supplies     the pilot and air/spring return for consistent      shifting.
  • Use on lube or non-lube service.
  • Various types of manual operators and solenoid     enclosures. • Optional low wattage DC solenoids down to 1W. 
 | 
   
 | 
    OPERATIONAL BENEFITS 
 • The 4-way pilot develops maximum      shifting forces both ways.
  • Memory spring available.
  • Balanced spool, immune to variations      of pressure, also provides high flow.
  • Short stroke with high flow. 
• Bonded spool with minimum friction,    shifting in a glass-like finished bore.
  • Wiping effect eliminates sticking.
  • Long service life. 
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