SPECIFICATIONS


Type Single Acting Spring Return Linear Cylinder - Fail Close
Series FC* (*earlier referred as SBD)
Type Single Acting Spring Return Linear Cylinder - Open Close
Series SF
Maximum Operating Pressure 7bar
Temperature Range minus (-) 10°C to +80°C
Stroke Range up to 500mm
Maximum Thrust Spring Preload up to 300kN
Manual Override Options are available a. Rack and Pinion
  b. Top Screw
  c. Bevel Gear
  d. Jack Screw
  e. Hydraulic

 

FEATURES


  • Actuator Sizes from 4” bore to 44” bore.
  • Fail Close and Fail Open Options available.
  • Maximum Thrust up to 300kN.
  • Actuators Comply to AWWA C541, PED 2014/68/EU, ASME Sec VIII
  • Actuators are suitable for SIL-3 environments.
  • Single Spring and Multi Spring Design makes Supriya Actuators Compact.
  • Unique design of piston and piston rod engagement allows rotation of piston rod.
  • Supriya Spring Return Actuators are designed to operate horizontally or vertically.
  • Versatile Manual Override options are available.
  • Spring Assembly is designed to provide a Safe and Easy replacement of seals without disturbing the pre-compression of spring.
  • High Pressure Actuators with 14bar operating pressure available on request.
  • Safety comes first - springs are assembled in cartridge and sealed to avoid any possible mishandling.
  • Complete Stainless Steel material of construction is also available.
  • Special Seals are provided for severe service applications.
  • ISO and MSS mounting customized mounting arrangement available.

BENEFITS


1) Cylinder design uses less supply air than comparable diaphragm actuators. High-quality materials require little maintenance. There is no diaphragm to rupture.
2) Hydraulic Manual Override - Compact Type assembled within the spring assembly reduces the overall height by 33%
3) Periodic maintenance is easy to perform since the spring return actuator only requires the removal of three-four parts to access all internal parts.
4) A variety of positioner, instrumentation, controller options makes the spring return actuator ideal for a variety of process control applications.
5) Using standard O-rings and seals for both static and dynamic sealing makes Supriya spring return actuator soft parts lower cost and easier to find.
6) Our highly engineering springs with stronger materials and better surface treatment and finish provides exceptionally long fatigue life.
7) Our actuators are designed for 20years of service life.

 

MATERIALS


  • Standard pneumatic cylinder material is fibre reinforced composite for sizes from 4” to 20”, and hard chrome plated carbon steel for cylinder size from 22” to 44”
  • Chrome plated carbon steel cylinder is available as an option for cylinder size from 4” to 20” upon request.
  • Carbon steel and/or Spherodized Iron cylinder Top Head and Bottom Cover.
  • Standard drive rod material is stainless steel with option carbon steel chrome plated.