Quarter-turn valve actuator DFPD-HD

pneumatic90°Scotch yoke

• Ideal for applications with high torques up to max. 32,000 Nm • Extremely modular for a variety of uses: configurable spring forces, a choice between right or left direction of rotation and mechanical or hydraulic manual override • With safety functions • NAMUR port pattern for solenoid valves to VDI/VDE 3845 • Variants in accordance with EU Explosion Protection Directive (ATEX) The quarter turn actuator DFPD-HD is suitable for open and closed-loop control ofball valves, air valves and butterfly valves. Its VDI/VDE 3845-compliant interfaceenables direct mounting of sensor boxes or positioners.The DFPD-HD series, designed with a Scotch yoke system, have a non-lineartorque characteristic as a function of the swivelling position.Grouped into three sizes – 9000, 18000 and 32000 – it is possible to achieve atorque of 9000 ... 32000 Nm. Typical applications: • For butterfly valves: canted (asymmetrical yoke) • For ball valves: symmetrical (symmetrical yoke) Typical applications include: • Controlling heating in different power station processes • Controlling gas ventilation flaps • Controlling compressed air valves on furnaces • Treatment of drinking water, industrial water and wastewater • Controlling valves in chemical processes