Easy to install – sturdy and reliable in use: the corrosion resistant linear actuator DFPI to ISO 15552 with built-in linear potentiometer or fully integrated valve positioner.

• Mounting interfaces to ISO 15552 on bearing and end caps
• Sturdy tie rod design
• Integrated air supply
• With optional integrated linear potentiometer or fully integrated valve positioner
• IP65, IP67, IP69K, NEMA4
• As per EU explosion protection directive (ATEX)

DFPIs are adjustable linear actuators. Product versions with an integrateddisplacement encoder DFPI-…-E-… are available.The displacement encoder integrated in the DFPI-...-E-... version returns an analogue voltage or current signal proportional to the position of the piston. This canbe used for operation with an external positioner. The positions are specified viaan analogue setpoint signal 4 ... 20 mA. The position feedback uses an analoguefeedback signal of 4 ... 20 mA. The feedback signal guarantees high reliability andsimple diagnostics for the operator. The travel speed can be influenced using theintegrated flow control screws. Variants with a mounting interface to ISO 15552are available. The sturdy corrosion-resistant design of the DFPI is ideal for useunder harsh ambient conditions.

Innovative
• Ready-to-install, compact unit foreasy installation
• Sturdy and corrosion-resistant, idealfor use under harsh ambient conditions
• Suitable for directly attaching a positioner in accordance with VDE/VDI 3847-2 and valve terminal VTOPfor additional pneumatic functions.The integrated air supply avoidsleakage caused as there are fewerconnecting points between the individual components, thus preventingerrors

Parameter Name	Parameter Value
Movement	linear
Type	electric
Technology	with piston rod tie-rod
Configuration	double-acting
Material	stainless steel
Voltage (V)	24 - 20
Norms	ISO 15552, DIN 3358
Protection class	IP65 IP69K IP67 for harsh environments
Applications	industrial for process automation for OEM for sliding gates for demanding applications for harsh environments damper
Other characteristics	control positioning high-performance integrated long-stroke high-force with integrated controller with integrated displacement encoder corrosion-resistant with integrated position sensor position-sensing ATEX with potentiometer tie-rod with integrated electronics
Stroke (mm)	40 - 990
Force (N)	4417 - 46385
Pressure	Max.: 8 bar (116 psi)Min.: 3 bar (43.5 psi)
Rod diameter	Max.: 320 mm (13 in)Min.: 100 mm (4 in)
Ambient temperature	Max.: 80 °C (176 °F)Min.: -20 °C (-4 °F)