Valve Sizing App
Facebook Twitter Youtube Linkedin Instagram
Contractor Orientation
SizeFlo

Hydraulic Single-Acting Spring Return Actuators (HSA)

Surface Actuation

Simplified Fail-Safe Operation

The Master Flo HSA Actuator blends the robustness of hydraulic piston technology with a spring-return mechanism, mirroring the fail-safe functionality found in pneumatic systems. This innovative design ensures reliability through simplified fail-safe operations, even in the absence of hydraulic supply pressure. Ideal for applications demanding uncompromised safety and efficiency, the HSA Actuator represents a significant advancement in hydraulic control systems, providing a streamlined solution to traditional hydraulic actuation challenges.

Hydraulic Single-Acting (HSA), Spring Return Actuator
  • Hydraulic Piston Technology: Incorporates Master Flo’s proven hydraulic piston actuator for robust performance.
  • Spring-Return Mechanism: Adds the flexibility and reliability of spring-return action for fail-safe operation.
  • Simplified Fail-Safe: Ensures operation continuity even with the loss of hydraulic supply, offering a simplified approach to fail-safe mechanisms compared to traditional systems.
  • Enhanced Safety: Designed to provide an additional layer of operational safety across various applications.
  • Flexibility in Use: Suitable for a wide range of applications requiring precise control and reliability.

Fail Action

  • Spring Fail Close
  • Spring Fail Open
  • Fail Last

Control Signal (with control system)

  • 4–20 mA
  • HART
  • Fieldbus

Feedback Signal (positioner dependent)

  • 4–20 mA
  • HART
  • Fieldbus

Maximum Supply Pressure

  • 1500 psig

Hazardous Area Certification

  • CSA/FM/UL: Explosion Proof or Intrinsically Safe,
  • ATEX/IEC: Intrinsically Safe or Flameproof

Options

  • Solenoid Valves
  • Position Controller
  • Handpump Override

Get Started

Quote Request Form

Request Product Data Sheet

Privacy Disclaimer

This website uses cookies that recognize your computer or device to give you the best user experience and to improve its features. You can disable cookies through your browser but some features of the site will no longer be available. Read our Website Privacy Statement.

Accept