Introducing the New High-Performance Pro's: PDO5, PDO3
Unbalanced valve design eliminates valve centering and pump stall-out-even under low air inlet pressures.
Provides a positive seal.
Helps insure optimum energy efficiency while avoiding costly air "blow-by".
Ceramic construction insures long service life.
Provides an ultra-positive, reliable shift signal that avoides stall-out.
Provides faster pump trip-over with more flow. Faster trip-Over with less pulsation and Superior laminar material flow.