Morin Hydraulic and Pneumatic Valve Actuator Series B & C

  • Technical data Supply pressure: 40 to 160 psig (see torque chart. MORMC-0333)
  • Supply medium: Air or any gas compatible with materials of construction
  • Temperature rating Standard range: -20°F to 210°F Optional range: -65°F to 300°F
  • Angular rotation: 90 degrees ± 8 degrees
  • B series – Ductile iron w/ stainless steel cylinders C series – Ductile iron w/ carbon steel cylinders Spring return and double acting actuators Quarter-turn output torques to 1,400,000 lb. in.

Features & Benefits:

  • Ductile iron housing, piston, and end caps provide long product life with durable, cost-effective operation.
  • Output shaft made of high-strength alloy steel or 17-4PH stainless transmits torque without fatigue.
  • Sintered bronze bushings or PTFE composite on the output shaft eliminate side loading of the valve stem to maximize stem packing performance.
  • Chrome-plated steel piston rod provides strength and corrosion resistance for enduring high-cycle applications.
  • Sintered bronze piston rod bushings provide low-friction support and precise alignment of the piston rod to increase efficiency. reduce maintenance and extend actuator life.
  • Heat-treated stainless steel thrust pins and rollers transfer piston force to 17-4PH stainless steel or ductile iron yoke by rolling to reduce friction. for longer life and more efficient torque transmission.
  • PTFE guide bands ensure low-friction piston guidance during operation to protect cylinder walls from potential scoring and extend seal performance with a continuous cylinder wiping action.
  • Bi-directional travel stops provide accurate valve rotation adjustment.
  • ISO 5211 mounting pattern promotes easier valve adaptation by utilizing internationally recognized standards.
  • Both series B and C have been certified to SIL 3 ratings.
  • Actuators are rated IP66.
  • The NAMUR drive slot on the output shaft enables accessory-driven components to maintain a compact assembly and eliminates the need for couplings.
  • Tectyl-coated springs can be disarmed without special tools to safely and easily disassemble the actuator in the field. reducing downtime and providing a ‘man-safe’ spring.
  • An easily removable housing cover provides effortless access for internal inspection of the yoke mechanism.

Specs & Brochures