The DFPD series features a rack and pinion combination with a constant torque
characteristic across the entire swivel range. Sizes 10 to 2300 are available. The
DFPD is suitable for the automation of butterfly valves, ball valves and air
dampers.
It is also suitable for water/wastewater, beverage, pharmaceutical and
process automation. The modular and compact design of the DFPD allows various
spring configurations as a suitable solution for different applications.