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RGS Q-Series

RGS Q-Series
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RGS Q-Series

Product catalog summary
Overview: The Bettis RGS Q-Series actuators are pneumatic devices available in quarter-turn spring-return (SR) and double-acting (DA) models. They deliver up to 21,000 in-lb (2373 N∙m) of torque and are constructed from ductile iron or stainless steel. These actuators function effectively in temperatures from -60°F to 450°F (-51°C to 232°C) and are noted for their durability and reliability.
Operation and Piping: These actuators can be powered by various fluids, including instrument air and hydraulic fluid. They are shipped in a Fail-Close or Left-Hand orientation but can be reversed in the field. Operation modes include Fail-Close, Fail-Open, and Double-Acting, each with specific pressure and rotation characteristics. Dual cylinder models require both endcap pressure ports, while single cylinder models do not have a P2 port. Spring-Return models use P3 as a breather port, whereas it serves as a pressure port in Double-Acting models.
Dimension and Technical Data: Detailed dimensions are provided for both single and dual cylinder models in imperial and metric units, including envelope dimensions, ISO bolt patterns, NAMUR patterns, and air volume specifications. The actuators have identical mounting patterns on both sides, and the NAMUR adapter plate can be repositioned for field reversibility.
Pressure Equipment Directive (PED) Compliance: The document outlines the PED category determination for the actuators, ensuring compliance with safety standards. Models under SEP (Sound Engineering Practice) do not require compliance unless requested. The CE mark is applied if PED compliance is requested or applicable to other directives.
Output Torque Data: Detailed torque data is provided for both Double-Acting and Spring-Return models in both imperial and metric units, highlighting the maximum rated torque and pressure limits. Tables provide output torque values for various operating pressures, with notes on the maximum operating pressure (MOP) and maximum allowable working pressure (MAWP).
Materials and Construction: A parts diagram details the materials used, such as CF8M stainless steel and ductile iron, ensuring compatibility with various applications. Options for material upgrades and special coatings are available.
Model Number Matrix: The matrix explains the coding system for actuator models, covering aspects like material, action type, temperature range, port size, orientation, and manual override options.
Notes and Recommendations: The document emphasizes material compatibility with application requirements and provides guidance on environmental temperature considerations. Special materials and coatings are available upon request.
Contact Information: The document concludes with contact details for Emerson's global sales and support offices, providing regional contact numbers and addresses.
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Catalog excerpts

RGS Q-Series-1

Product Data Sheet Quarter-Turn Spring-Return (SR) and Double-Acting (DA) Pneumatic Actuators ■ Output Torques to 21,000 in-lb (2373 N-m) ■ Ductile Iron or Stainless-Steel Construction ■ Double-Acting and Spring-Return Models ■ High Cycle Life, High Speed, High Reliability BETTIS" EMERSON. Process Managemen

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RGS Q-Series-2

Product Data Sheet

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RGS Q-Series-3

Product Data Sheet RGS011110-6 Rev. 0 Operation and Piping Bettis RGS Q-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 port(s)...

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RGS Q-Series-4

Bettis RGS Q-Series March 2016 Product Data Sheet Piping Guidelines 1. Dual cylinder models (205, 210, 214), both endcap pressure ports (P1 and P2) must be utilized for proper operation. 2. P1 and P2 are typically connected together and powered by a single air pathway. 3. Single Cylinder models (203, 204, 207, 212), port 2 (P2) does not exist. 4. Spring-Return (SR) models port 3 (P3) is a breather port. 5. P3 is a pressure port for Double-Acting models. 6. P3 is a breather port for single cylinder SR models.

 Open the catalog to page 4
RGS Q-Series-5

Product Data Sheet

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RGS Q-Series-6

Bettis RGS Q-Series March 2016 Dimension and Technical Data Single Cylinder Models (203, 204, 207, 212) Product Data Sheet

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RGS Q-Series-7

Product Data Sheet RGS011110-6 Rev. 0 Dual Cylinder Models (205, 210, 214)

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RGS Q-Series-8

Product Data Sheet Dimension and Technical Data (Imperial, Inches) ENVELOPE DIMENSIONS Width Total Width Cylinder Height Cylinder Length Total Flange Distance Flange Depth* Stop Extension Maint. Clearance Maint. Clearance *On 203, 204, and 205 models , the cylinder flange is flush with the mounting surface. Thread depth Identical mounting patterns on both sides of actuator for all sizes. Size 203 has a single ISO pattern. Sizes 204/205 have two ISO patterns. Sizes 207/210/212/214 have an ISO pattern and a rectangular pattern. NAMUR PATTERN Slot Width Slot Depth Thread Depth The NAMUR slotted...

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RGS Q-Series-9

Product Data Sheet ENVELOPE DIMENSIONS Width Total Width Cylinder Height Cylinder Length Total Flange Distance Flange Depth* Stop Extension Maint. Clearance Maint. Clearance *On 203, 204, and 205 models , the cylinder flange is flush with the mounting surface. Thread depth Identical mounting patterns on both sides of actuator for all sizes. Size 203 has a single ISO pattern. Sizes 204/205 have two ISO patterns. Sizes 207/210/212/214 have an ISO pattern and a rectangular pattern. NAMUR PATTERN Slot Width Slot Depth Thread Depth The NAMUR slotted drive can be moved to the opposite side for field...

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RGS Q-Series-10

Product Data Sheet DOUBLE SQUARE FEMALE DRIVE Square Depth Outer Diameter Inner Diameter Identical double square female drive on both sides of the actuator for all sizes. AIR VOLUME cubic inches (cu in) 14 End Caps PORT SIZE (P1, P2, P3) STROKE TIME seconds (sec) *Stroke time varies with supply pressure, temperature, spring rate, travel adjustment, working medium, piping, accessory flow rates, and valve torque. Values shown with no valve resistance. CENTER OF GRAVITY COGx *CoGz is variable for some models and changes with actuator stroke. Values are shown as min/max. WEIGHT pounds (lb) QS - Stainless...

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RGS Q-Series-11

Product Data Sheet DOUBLE SQUARE FEMALE DRIVE Square Depth Outer Diameter Inner Diameter Identical double square female drive on both sides of the actuator for all sizes. AIR VOLUME cubic inches (cu in) 166 End Caps PORT SIZE (P1, P2, P3) STROKE TIME seconds (sec) *Stroke time varies with supply pressure, temperature, spring rate, travel adjustment, working medium, piping, accessory flow rates, and valve torque. Values shown with no valve resistance. CENTER OF GRAVITY COGx *CoGz is variable for some models and changes with actuator stroke. Values are shown as min/max. WEIGHT pounds (lb) QS -...

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RGS Q-Series-12

Product Data Sheet Dimension and Technical Data (Metric, Millimeters) ENVELOPE DIMENSIONS Width Total Width Cylinder Height Cylinder Length Total Flange Distance Flange Depth* Stop Extension Maint. Clearance Maint. Clearance *On 203, 204, and 205 models , the cylinder flange is flush with the mounting surface. Thread depth Identical mounting patterns on both sides of actuator for all sizes. Size 203 has a single ISO pattern. Sizes 204/205 have two ISO patterns. Sizes 207/210/212/214 have an ISO pattern and a rectangular pattern. NAMUR PATTERN Slot Width Slot Depth Thread Depth The NAMUR slotted...

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RGS Q-Series-13

Product Data Sheet ENVELOPE DIMENSIONS Width Total Width Cylinder Height Cylinder Length Total Flange Distance Flange Depth* Stop Extension Maint. Clearance Maint. Clearance *On 203, 204, and 205 models , the cylinder flange is flush with the mounting surface. Thread depth Identical mounting patterns on both sides of actuator for all sizes. Size 203 has a single ISO pattern. Sizes 204/205 have two ISO patterns. Sizes 207/210/212/214 have an ISO pattern and a rectangular pattern. NAMUR PATTERN Slot Width Slot Depth Thread Depth The NAMUR slotted drive can be moved to the opposite side for field...

 Open the catalog to page 13
RGS Q-Series-14

Product Data Sheet DOUBLE SQUARE FEMALE DRIVE Square Depth Outer Diameter Inner Diameter Identical double square female drive on both sides of the actuator for all sizes. End Caps PORT SIZE (P1, P2, P3) STROKE TIME seconds (sec) *Stroke time varies with supply pressure, temperature, spring rate, travel adjustment, working medium, piping, accessory flow rates, and valve torque. Values shown with no valve resistance. CENTER OF GRAVITY COGx *CoGz is variable for some models and changes with actuator stroke. Values are shown as min/max. WEIGHT kilograms (kg) QS - Stainless Environmental temperature...

 Open the catalog to page 14
RGS Q-Series-15

Product Data Sheet DOUBLE SQUARE FEMALE DRIVE Square Depth Outer Diameter Inner Diameter Identical double square female drive on both sides of the actuator for all sizes. End Caps PORT SIZE (P1, P2, P3) STROKE TIME seconds (sec) *Stroke time varies with supply pressure, temperature, spring rate, travel adjustment, working medium, piping, accessory flow rates, and valve torque. Values shown with no valve resistance. CENTER OF GRAVITY COGx *CoGz is variable for some models and changes with actuator stroke. Values are shown as min/max. WEIGHT kilograms (kg) QS - Stainless Environmental temperature...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.