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Need help with your application? Contact us for expert advice.

Able Instruments can assist you and your customers in the following areas:

  • Technical application guidance: Support selecting the correct Series III-L valve based on pressure class, media compatibility, port size and control requirements.
  • Integrated actuation and system design: Assistance with specifying integrated actuation options and simplifying hydraulic or pneumatic system layouts.
  • After-sales and lifecycle support: Guidance on ordering information, replacement valves and maintaining long-term reliability in high-pressure service.

Further to the above, Able can offer customised solutions based on your individual requirements. Email us now at info@ableinstruments.com

Barksdale Actuated Heavy Duty Valves – Series III-L

Integrated actuated Shear-Seal® directional control valves for high-pressure systems

Able Instruments offer the Barksdale Actuated Heavy Duty Valves – Series III-L for high-performance automated directional control in demanding high-pressure fluid and gas systems. Series III-L valves combine Barksdale’s proven Shear-Seal® valve technology with a fully integrated actuation mechanism, providing reliable operation in applications where compact design and system simplicity are essential.

Unlike pilot-actuated designs, Series III-L valves feature integrated actuation, eliminating the need for external pilot lines and associated components. This simplifies installation, reduces potential leak paths, and improves overall system reliability while maintaining the high pressure capability and contamination tolerance associated with the Shear-Seal® operating principle.

Key Features:

  • Integrated actuation design: Built-in actuator eliminates the need for external pilot lines, reducing system complexity and potential leak paths.
  • Shear-Seal® directional control technology: Proven rotating rotor and stationary seal deliver positive shut-off and consistent performance under high pressure.
  • Designed for automated systems: Ideal for applications requiring reliable, repeatable valve switching without manual intervention.
  • Compact installation footprint: Integrated actuator allows space-efficient system layouts in confined or complex installations.
  • High-pressure capability: Engineered for demanding hydraulic, pneumatic and gas systems depending on configuration.
  • Contamination tolerance: Shear-Seal® operating principle maintains performance even with contaminated media.
  • 2- and 3-position configurations: Flexible valve arrangements to support a wide range of control requirements.
  • Industrial-grade construction: Designed for long service life in harsh environments such as drilling, offshore and heavy industrial systems.

Have a particular project in mind? We’d welcome a call on +44 (0) 1189 311 188

The Shear-Seal® design uses a rotating rotor and stationary seal to deliver positive shut-off, low internal leakage, and consistent switching under high pressure. Combined with integrated actuation, this makes Series III-L valves particularly well suited to automated systems where dependable directional control and reduced maintenance are critical.

Typical applications include drilling and well control systems, offshore and subsea equipment, hydraulic power units, and heavy industrial machinery. In these environments, Barksdale Actuated Heavy Duty Valves – Series III-L provide a robust, space-efficient solution for automated high-pressure valve control.

Actuated Heavy Duty Valves – Series III-L Specifications:

Valve Type
Integrated actuated Shear-Seal® directional control valve
Operating Principle
Shear-Seal® rotating rotor with stationary seal
Actuation
Integrated actuation mechanism (no external pilot required)
Valve Positions
2-position and 3-position configurations
Media Compatibility
Hydraulic oil, lubricated water, air and compatible gases
Operating Pressure
High-pressure service capability depending on port size and configuration
Port Sizes
Multiple port sizes available depending on configuration
Flow Capacity
High flow capacity relative to port size (configuration dependent)
Operating Temperature
–40 °C to +121 °C (depending on seals and materials)
Construction Materials
Bronze valve body, stainless steel rotor and shaft, corrosion-resistant actuation components
Seal Materials
Buna-N as standard; alternative seal materials available
Position Indication
Visual position indication provided
Approvals
Approvals available depending on model and configuration

Note: Specifications may vary depending on the selected model code and configuration. Options may include different port sizes, flow paths, integrated actuation variants, seal materials, pressure ratings and approvals. Please refer to the ordering information or contact Able for guidance on selecting the correct valve for your application.

Summary
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  • Part Number: Actuated Heavy Duty – Series III-L
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Prefer to speak to a Product Specialist? Call us on:
+44 (0)118 9311 188