The Mosites A20N Butterfly Valve was developed in response to market demand for a high cycle butterfly valve. Reduced torque and low profile disc increases the A20N cycle capabilities and economizes your actuation cost. Uniquely suited for applications involving continuous cycling, the Mosites A20N Butterfly Valve provides reliable service in flow control applications. Incorporating the same features as the A20, the A20N meets API 609 and MSS-SP 67 laying length (face-to- face) dimensions for quick replacement of standard butterfly valves.