http://www.blacoh.com
BLACOH Pulsation Dampeners, SENTRY Dampener Air Control Options. Learn how the right pulsation dampener air control maximizes dampener performance in various pumping applications. Adjustable air control to finely tune in dampener pressure for maximizing dampening effect. Automatic air control for use in systems with varying pressures. Chargeable air control for high pressure systems. Patented J Model air control for inlet stabilization.