STK- 8520 Fail-Safe Linear Electric Valve Actuator

Product Description

A non-intrusive intelligent fail-safe linear actuator for ON/OFF and modulation control in fail-safe applications. The robust and compact mechanical spring return design can be triggered to fail-safe action either on loss of power or signal. With no dependency on super-capacitor or battery-backup, this state of the art design is widely used on valves for oil & gas, power, chemical, HVAC, and water and wastewater industries.

Intelligent and non-intrusive
On/Off (S2) and Continuous modulation (S9)
Up to 10116 lbs (45 KN) Electric Thrust
Mechanical driven fail-safe operation with Stem extended or Retracted
Direct coupling on the fail-safe with the valve shaft
Adjustable speeds
Fail-safe trigger selectable in case of drop-off 24 VDC fail-safe signal or main power supply
SIL3 capable
Option De-clutchable handwheel
Rotatable in 90 degree steps with remote mounting option
Local User Interface with wireless Bluetooth® control capability for configuration, monitoring and diagnostics
User application available for Android devices

Power Source
Electric
Product Type
Linear Electric Actuator
Actuation
Electric
Certifications
ATEX, IECEx ,UL ,CSA
Control Type
On/Off, Continuous Modulation
Valve Type
Ball, Butterfly, Plug, Dampers, Globe
Torque/Thrust
Switch off thrust electric max. 25 kN (5,620 lbs-ft) and modulating thrust: max. 12 KN (2,697 lbs-ft)