Linear

HLA/HLAS

Double acting and spring return hydraulic linear valve actuators for on-off and regulating service.

Features & Benefits:

  • Electroless nickel plated and polished cylinder provides maximum corrosion resistance and reduces friction
  • Hard chromium plated and polished stainless steel piston rod guarantees corrosion protection and minimal friction
  • Triple-element piston seals provide low friction, high sensitivity, ensure long life and prevent sticking problems
  • Piston rod support bushing in bronze with sintered PTFE provides minimal friction and extended service life
  • Mechanical travel stop for stroke adjustment
  • Fabricated carbon steel adapter spool with accessories provision enables adaptation to any type of valve
  • HLAS totally enclosed spring cartridge ensures personnel safety and simplifies assembly
  • HLAS spring action can be changed easily in the field from to close to open or vice versa
  • HLAS quick-acting version available
  • Special coatings for offshore or corrosive environments

GENERAL APPLICATION

HLA double-acting and HLAS spring-return hydraulic actuators are designed for on-off or regulating control of gate and globe valves.

TECHNICAL DATA

Design Pressure: ?? bar g maximum
Supply medium: Mineral oil or synthetic fluids
Thrust: Dependent on application (consult the factory)
Ambient Temperature: -30°C to 100°C (-20°F to +210°F)

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Certificates, Approvals & Qualifications

EAC DoC Certificate All Pneumatic and Hydraulic Actuators (English)

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Technical Data Sheets

HLA/HLDA/HLAS/HLDAS Hydraulic Actuator (English)

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Installation & Maintenance Instructions

HLAS/HLDAS Hydraulic Actuator (English)

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Certificates, Approvals & Qualifications

PED Module H H1 2019 07 (English)

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Certificates, Approvals & Qualifications

HLA/HLDA IEC 61508 SIL 3 (English)

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Certificates, Approvals & Qualifications

HLAS/HLDAS IEC 61508 SIL 3 (English)

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