Dual-Action Check Swing Action and Poppet Action

The initial 25% of the opening stroke of the Dual-Action Check is that of a traditional "Poppet" action check with the following features: • Consistent static sealing and differentials • Excellent resistant to fouling  • Reliable check closure  • Stable low rate flow characteristics
	The last 75% of the opening stroke of the Dual-Action Check is that of a traditional "Swing" action check providing the following features: • Minimal friction loss at high flow rates • Flow path of fluid through valve is more linear • Reduces component stress at high flow rates