Actuators

When attached to valves that manage pressure and flow control, actuators harness pressure or current energy to move their internal mechanical parts. By allowing remote valve operation, they can significantly increase the safety, efficiency and cost profiles for your business goals. To meet the hard-service requirements of today’s drilling environments, Forum offers the comprehensive line of ABZ™ pneumatic and electric actuators, as well as manual actuator accessories. Offering advanced engineering features and streamlined designs, our actuators are easy to install and service across a broad range of operating conditions.

Pneumatic Actuators

Forum’s pneumatic actuators are versatile and rugged with multiple streamlined sizes that keep operations simple and cost-effective. Easily tolerating heavy loads, they also provide high force and speed to sustain constant pressures, making them durable and safer to operate.

Electric Actuators

Built to withstand extremes, our ABZ electric actuators feature watertight, explosion-proof enclosures, built-in stall protection and high tolerance to temperature and pressure. With excellent drilling well shutoff control, they offer added protection for personnel, equipment and the environment.

Manual Actuator Accessories

Manual worm gear operators underpin every valve application in your drilling operations. Engineered for performance, Forum’s Zy-Gear line of worm gears feature high-precision designs and rugged materials for smooth, dependable and cost-effective operation.

ABZ 227 Series Pneumatic Rack & Pinion Actuator

Features:
  • Eleven sizes
  • Rack and pinion design
  • Double-acting and spring return
  • Four BREAK and SEAT torque combinations per body size using pre-loaded spring cartridges
  • NAMUR interface for easy solenoid mounting
  • Mid-body NAMUR interface for easy air and electrical connections
  • Anodized cylinders and epoxy-coated end-caps
  • Stainless steel fasteners for corrosion resistance
  • Large piston guides and rings for minimum cylinder wear/optimum contact between rack and pinion
  • Dual travel stops
  • Pressure range 40-120 psi
  • Temperature range -4 to 176 degrees Fahrenheit (F)
  • All moving parts factory lubricated
  • Indoor or outdoor installation
  • Compliant to ISO mount standards
  • Media: dry or lubricated air
  • Stem adapters available for direct mounting


ABZ 228 Series Pneumatic Rack & Pinion & Scotch Yoke Actuator

Features (Series 228)
  • Rack and pinion design
  • Scotch yoke
  • 13 double-acting sizes
  • 12 spring-return sizes
  • Five unique START/END torque outputs for each rack and pinion model
  • Two START/END torque outputs per each scotch yoke model
  • Dual travel stops
  • NAMUR interface for direct accessory mounting
  • Mid-body interface minimizes interference with mounted accessories and valves
  • Anodized cylinders and epoxy-coated end-caps
  • Stainless steel fasteners for corrosion resistance
  • Large piston guide plates and piston back-up ring
    • Minimal cylinder wear and optimum contact between the rack and pinion
    • Pressure range 40-150 psi
    • Temperature range -20 to 175 degrees F
    • Media: clean, dry air, non-corrosive gas or light hydraulic oil
    • All moving parts factory lubricated
    • Indoor or outdoor installation
    • High- and low-temperature configurations
    • Stem adapters available for direct mounting