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Standard Variations of AAA Valves:• Standard spool blocks all ports in center position. Optional spool designs available, consult factory.• Piped solenoid exhaust for those applications where the exhaust air or gas must be piped to another area.• Optional O-Ring materials.• External pilot operation on solenoid valves for line pressures under 50 and over 160 PSI or for vacuum service.• Manual overrides on solenoid actuated valves for valve operation during electrical failure.• High pressure solenoid valves for line pressures up to 300 PSI when external piloting is not feasible.• Several pin lock variations on manual valves for two hand operations.• Several lock out variations on manual valves for machine lock outs.• External indicator pins for actuating secondary switches when the spool shifts.• Panel mounting options of manual valves.• CSA approved electric solenoid valves.
