ISO 4401 SIZES 05 TO 10 (D661, D662, D663, D664 AND D665)
• Optimized design of valve bodies for high rated flow
• Available as 2- or 3-stage valves, dependent on required dynamics
• Optional ServoJet or nozzle-flapper pilot valves
• Excellent dynamic response due to improved pilot stages
• Different fail-safe options available allowing the best fit to the application