Model 21 – SR

Kinetrol’s highly reliable, low stress range, clock type spring on our Model 21 spring return unit offers the safest fail-safe operation. It is a robust and durable unit with its epoxy stove enamel coated aluminium alloy housing.


Output Torque: 4464 Nm at 5.5bar / 39506 at 80 psi
Displaced volume: 31386 cm³ / 1915 in³
ATEX: Up to Category 2
Pressure: Low pressure versions available
Model 21 Spring Return Actuator