Speed control mufflers provide an infinite variation of metering air flow at an acceptable sound level on exhaust ports of air valves with complete safety

• Safe and infinite variations of metering air flow at acceptable sound levels on exhaust ports of air valves
• Speed of operating cylinder or air tool may be increased or decreased with adjusting screw, the final position is locked in place by the lock nut
• Exhaust air noise is eliminated by a surrounding sleeve of sintered bronze