Group: Emerson Process Management
Catalog excerpts
Product Data Sheet Quarter-Turn Spring-Return (SR) and Double-Acting (DA) Pneumatic Actuators Output Torques to 500,000 in-lb (56,492 N-m) Ductile Iron or Stainless-Steel Construction Double-Acting and Spring-Return Models High Cycle Life, High Speed, High Reliability BETTIS" EMERSON. Process Management
Open the catalog to page 1Product Data Sheet
Open the catalog to page 2Product Data Sheet RGS011110-4 Rev. 0 Operation and Piping Bettis RGS F-Series actuators may be operated with instrument air, hydraulic fluid, water, or other power gases and fluids. Always ensure that the materials of construction are compatible with the application and that the pressure does not exceed the maximum allowable. All Bettis actuators are shipped in the Fail-Close or Left-Hand orientation unless ordered as Fail-Open or Right-Hand. The mode of operation may be reversed in the field simply by turning the actuator top-side down. 1. Fail-Close (Left-Hand): pressure on the end cap...
Open the catalog to page 3Product Data Sheet Piping Guidelines 1. Both end cap pressure ports P1 and P2 must be pressurized simultaneously for proper operation. 2. Pressure ports P1 and P2 are typically connected together and powered by a single air pathway. 3. For all Double-Acting (DA) models, both base plate pressure ports P3 and P4 must be pressurized simultaneously for proper operation. These ports are not present on Spring-Return (SR) models.
Open the catalog to page 4Product Data Sheet 4. Pressure ports P3 and P4 are typically connected together and powered by a single pathway. Body ports P5 and P6 (shown in dimensional drawing on page 6) are breather ports which should be fitted with a strainer on SR models and may be plugged on DA models.
Open the catalog to page 5Product Data Sheet Dimension and Technical Data B1
Open the catalog to page 6Product Data Sheet QTRCO F2-SERIES QUARTER TURN PNEUMATIC MOUNTING DIMENSIONS DIMENSIONS BELOW FOR DOUBLE ACTING MODELS ONLY
Open the catalog to page 7Product Data Sheet Dimension and Technical Data (Imperial, Inches) ENVELOPE DIMENSIONS Width Total Width Cylinder Height Cylinder Length Total Flange Distance Flange Depth Body Depth Stop Extension Maint. Clearance Maint. Clearance MOUNTING PATTERN Pattern X Thread Type Thread Depth NAMUR PATTERN Length Slot Width Slot Depth Thread Depth The namur slotted drive can be moved to the opposite side for field reversibility.
Open the catalog to page 8Product Data Sheet DRIVE DIMENSIONS Shaft Bore Shafts have two keyways 90 degrees apart. Only one keyway is required to transmit torque. Max engagement shown with top hat. Removal of top hat allows shaft to extend through the actuator bore. Body Side Stroke time varies with supply pressure, temperature, spring rate, travel adjustment, working medium, and valve torque. Values shown with no valve resistance. Contact factory about faster stroke speed. Max Rated Torque (in-lb) Environmental temperature requirements may limit the use of certain trim materials. Temperature ranges may be extended...
Open the catalog to page 9Product Data Sheet ENVELOPE DIMENSIONS Width Total Width Cylinder Height Cylinder Length Total Flange Distance Flange Depth Body Depth Stop Extension Maint. Clearance Maint. Clearance MOUNTING PATTERN Pattern X Thread Type Thread Depth NAMUR PATTERN Length Slot Width Slot Depth Thread Depth The namur slotted drive can be moved to the opposite side for field reversibility.
Open the catalog to page 10Product Data Sheet DRIVE DIMENSIONS Shaft Bore Shafts have two keyways 90 degrees apart. Only one keyway is required to transmit torque. Max engagement shown with top hat. Removal of top hat allows shaft to extend through the actuator bore. Body Side Stroke time varies with supply pressure, temperature, spring rate, travel adjustment, working medium, and valve torque. Values shown with no valve resistance. Contact factory about faster stroke speed. Environmental temperature requirements may limit the use of certain trim materials. Temperature ranges may be extended with proper insulation....
Open the catalog to page 11Product Data Sheet Dimension and Technical Data (Metric, Millimeters) ENVELOPE DIMENSIONS Width Total Width Cylinder Height Cylinder Length Total Flange Distance Flange Depth Body Depth Stop Extension Maint. Clearance Maint. Clearance Thread Type Thread Depth MOUNTING PATTERN NAMUR PATTERN Length Slot Width Slot Depth Thread Depth The namur slotted drive can be moved to the opposite side for field reversibility.
Open the catalog to page 12Product Data Sheet DRIVE DIMENSIONS Shaft Bore Shafts have two keyways 90 degrees apart. Only one keyway is required to transmit torque. Max engagement shown with top hat. Removal of top hat allows shaft to extend through the actuator bore. Body Side Stroke time varies with supply pressure, temperature, spring rate, travel adjustment, working medium, and valve torque. Values shown with no valve resistance. Contact factory about faster stroke speed. Environmental temperature requirements may limit the use of certain trim materials. Temperature ranges may be extended with proper insulation....
Open the catalog to page 13Product Data Sheet ENVELOPE DIMENSIONS Width Total Width Cylinder Height Cylinder Length Total Flange Distance Flange Depth Body Depth Stop Extension Maint. Clearance Maint. Clearance MOUNTING PATTERN Pattern X Thread Type Thread Depth NAMUR PATTERN Length Slot Width Slot Depth Thread Depth The namur slotted drive can be moved to the opposite side for field reversibility.
Open the catalog to page 14Product Data Sheet DRIVE DIMENSIONS Shaft Bore Shafts have two keyways 90 degrees apart. Only one keyway is required to transmit torque. Max engagement shown with top hat. Removal of top hat allows shaft to extend through the actuator bore. Body Side Stroke time varies with supply pressure, temperature, spring rate, travel adjustment, working medium, and valve torque. Values shown with no valve resistance. Contact factory about faster stroke speed. Environmental temperature requirements may limit the use of certain trim materials. Temperature ranges may be extended with proper insulation....
Open the catalog to page 15Product Data Sheet Pressure Equipment Directive (PED) Category Determination The European Pressure Equipment Directive (PED, 2014/68/EU, supersedes 97/23/EC) requires equipment to be placed in categories based on Fluid Group and Bar Liter rating. Determination of Fluid Group is the responsibility of the End User. Bettis RGS F-Series actuator ratings are listed below: MODEL CATEGORY Fluid Group 2
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