SCM88 Dixon Valve Brass Speed Control Muffler - 1" NPT - 2-1/2" Full Operating Height

Speed Control Mufflers 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. The speed of an operating cylinder or air tool may be increased or decreased with the adjusting screw. The final position is then locked in place by the lock nut. Objectionable exhaust air noise is eliminated by the surrounding sleeve of sintered bronze. On hose assemblies, pressure rating is the lower of either the rating of the coupling or the hose at 70 deg. F.