... : API 594 2.Testing Inspection: API 598 3.ANSI Class 125/150 or DIN PN1 4.Special design ... Range: 1/2" to 42" N. B. Pressure Classes: ANSI 150, 300, 600, 900, 1500, 2500 & 4500. End Connections ... Electric, Hydrau-Pneumatic Actuator Design Codes API 6D, ANSI B16.34, ANSI 16.5, ASME VIII, API 6FA. Quality Assurance ... products and services for all customers. large size cast iron flange butterfly valve