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aluminum rack and pinion actuator

Rack and Pinion Aluminum Actuators

Series 20/21

Flow Line Series 20 double acting and Series 21 spring return actuators are the latest and most technically advanced rack and pinion actuators on the market today. The Series 20/21 incorporates 17 sizes ranging in torque from 147 to 100,000 inch pounds. Features such as a fine tooth rack and pinion, internal and external travel stops, lifting eyes on larger sizes, and 304 SS hardware, all come from the continuing commitment of Flow Line Controls to innovate and provide the highest quality for our customers.

  • Features
  • Versatility
  • Sales Brochure
  • Engineering
  • Torque
  • IOM

Series 20/21 Aluminum Rack and Pinion Actuator Body

  • Extruded Aluminum body is internally machined, lapped and honed to exacting tolerances
  • All internal and exterior surfaces are hard anodized and 2-part polyester coated
  • Internal porting is standard, eliminating any need for external tubing
  • Mounting is accomplished with dual ISO drilling on all sizes and with three ISO drillings on six models
  • Extra deep end cap bolt holes allow for safe spring removal and installation

Series 20/21 Aluminum Rack and Pinion Actuator Pinion

  • Pinions are machined from a single piece of hardened steel
  • Fine-tooth gears eliminate hysteresis and lost motion typical with wide-tooth designs ISO female drives are standard on all models
  • Internally machined piston guide prevents vertical piston movement
  • Bottom entry pinion provides anti-blowout protection
  • All Pinions are electroless nickel plated

Series 20/21 Aluminum Rack and Pinion Actuator Pistons

  • Die cast aluminum pistons incorporate three heavy duty wear pads
  • An optional fourth wear pad is incorporated for high cycle operations
  • Piston o-ring is held in place by a precisely machined groove matching the o-ring diameter
  • Internal RTFE piston guide precisely aligns the piston to the pinion to prevent piston roll

Series 20/21 Aluminum Rack and Pinion Actuator End Caps

  • Die cast aluminum end caps are 2-part polyester powder coated inside and out for maximum corrosion resistance
  • Precise machining of the end caps leaves no room for movement on the actuator body
  • End cap o-rings are captive on all actuator models

Series 20/21 Aluminum Rack and Pinion Actuator Air Supply

  • All actuator models are equipped with 1/4" NPT supply ports
  • Supply pressure to all models of actuators is rated up to 120 psi air, hydraulic oil or water depending on seals used

Series 20/21 Aluminum Rack and Pinion Actuator Travel Stops

  • Internal travel stops are integral with the pinion and allow + or - 5 degrees adjustment at both ends of stroke
  • Optional travel stops are available to limit rotation between 45 and 90 degrees

Series 20/21 Aluminum Rack and Pinion Actuator Bolts and Fasteners

  • 300 series stainless steel is standard on all actuators

Series 20/21 Aluminum Rack and Pinion Actuator Accessories and Valve

  • Mounting Namur VDI/VDE 3845 is standard throughout the size range
  • ISO 5211 is standard mounting for all actuators throughout the size range
  • Special order mounting is available upon request

Series 20/21 Aluminum Rack and Pinion Actuator Springs

  • Springs are epoxy coated for corrosion resistance
  • Spring retaining rod is stainless steel with stainless steel fasteners

Series 20/21 Aluminum Rack and Pinion Actuator Position Indicator

  • Functions as an indicator for standard 2-way valves and also for 3-way applications with a simple change of built-in indicator tabs

spring return actuatorSeries 21 spring return actuators are available through out the size range.

solenoid valvesSeries 50 solenoid valves are available in 1/8", 1/4" and 1/2" NPT

limit switchesSeries 52 and 53 limit switches provide local and remote valve position.

positionersSeries 55 and 56 positioners are available with either a 3-15 psi or a 4-20 MADC signal.

direct mount actuatorsSeries 20 and 21 actuators mount directly to ball valves conforming to ISO 5211. Bracket and couplers are available for other patterns.

direct mount actuatorSeries 20 and 21 actuators mount directly to butterfly valves conforming to ISO 5211. Other mounting patterns are available.

 

Consult factory.