HY-GRADE - Model Series D -High Performance Dual Plate

Dual Plate Design; Manufacturing to API Std. 594. Integral Shaft and Disc Design with NO Hinge or Stop Pins. The Discs Swing Out of the Flow Stream Resulting in High Flow Capacities and Low Pressure Drops. Renewable Seats for Low Cost and Easy Maintenance. Each Disc has an Independent Spring for Instant Non-Slam Operation. The Springs are Shielded from the Flow Stream for Improved Service. Retainerless Design with No External Holes or Leak Points for Zero Fugitive Emissions.