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

Features

• Electroless nickel plated and polished cylinder for corrsion resistance and minimal friction.
• Hard chromium plated and polished piston rod in stainless steel for corrsion resistance and minimum friction.
• Piston rod support bushing in bronze with sintered PTFE provides minimal friction and extended service life.
• HLAS totally enclosed spring cartridge ensures personnel safety during assembly or disassembly.
• Compact design available to allow space footprint reduction without reducing requested thrust value.
• Fabricated carbon steel adapter spool with accessories provision designed specifically for adaptation to any type of valve.
• Accept an extensive range of accessories :
  • Complete control panel
  • Emergency tank
  • Manual hand pump
  • PST device
  • Regulating device (ECU 1000)
• Special coatings for offshore or corrosive environments
• Special versions with built-in dump valve and damper for 'quick spring operation'
• Double cylinder available to increase output capability.
• Housing in painted carbon steel.
• Spool in painted carbon steel or unpainted SS316 as option.

General Application

HLA/HLDA, HLAS/HLDAS hydraulic actuators are designed for the control of gate, globe and all other linear valves.