The SURE 100 is the largest and latest model of the RCS Surepowr Series Spring Return Electric Actuators. This newly-developed product incorporates the most advanced high-tech research and design, yet it uses a simple concept-a torsion power spring which provides dependable mechanical force for actuation when electrical power is lost. The Sure 100 torque capability is ideally suited for industrial-grade dampers and rotary valves when emergency shutdown is required.

This model is available in two speeds for two position (open/close) control as well as modulating control service. The Sure 100 enclosure complies with NEMA 4, 7 and 9 requirements and is available with either 
clockwise or counterclockwise power spring drive. CSA certification is in progress.

Applications

Safety shutdown for automated and computer-controlled systems
Used where emergency shutdown is required in critical valve applications, such as 6” and 8” butterfly valves, 2” and 3” ball and/or plug valves
Process control systems, all types
Vapor recovery systems
Tank truck loading stations
For fast and accurate closure of dampers in air systems that require reliable emergency operation
Vehicle tunnel and subway station smoke exhaust systems
Power plant coal dust collecting systems
Air intake and exhaust ventilation systems for electric utilities
Isolation dampers for air handling systems in energy plants
Dryer systems
Features
Powered by a rugged, high-torque, integral, 115 Vac or 220 Vac 50/60 Hz, Single phase, reversible motor
Precision-cut gears and shafts are heat-treated high alloy steel
Advantages
More compact. Lighter than other fail -safe electric actuators
No messy leaks from hydraulic fluids
Power drive is electric or mechanical
Easy, low cost installations
Connects to standard 2-wire, 115 Vac, 50/60 Hz, 1Ph power line
No air or hydraulic lines required
Low maintenance and energy costs
Gear train is permanently lubricated at the factory for the life of the actuator
Brake gap is set at the factory. No adjustment is required.
No pumps, compressors or troublesome hoses and tubing
Requires less electrical power than pneumatic and hydraulic systems
No scheduled maintenance required as with some battery packs
No speed or power loss due to cold temperatures which affect fluid and battery power
Combination NEMA 4, 6, 7 & 9 housing
Water tight/weather-proof seal makes enclosure suitable for NEMA 4 Indoor/outdoor installations
Can be used in explosion-proof applications where battery packs could be hazardous
certified device
Optional Features
Integral potentiometer; 1,000 OHM, 2 watts, 1% linearity. Other resistances available
Auxiliary function switches
Heaters with thermostats, breathers and drains, special corrosion-resistant coatings
Modulating service for 30 second speed at 50% duty cycle
Remote position feedback available as analog or resistance signals
High temperature modification for special applications
Specifications
 
SERIES SURE 100
Electripowr
Type SR
1200 Inch Pound Torque Output
 
 
High visibility position indicator
Designed for intermittent and modulating service as typified by applications which require emergency operation to a pre-determined position
Unique micro-adjustment plates permit fast, accurate setting of travel limit switches when needed. Switch activation cams are independently adjustable throughout the actuator’s 90° rotation for maximum setting flexibility and accuracy.
Built-in motor overload protection
Permanent high grade lubrication
Gear train designed to withstand stall torque
Operates in any attitude or position
Accessible, clearly-marked integral terminal strip assures fast, easy field wiring
Two ¾” NPT conduit entries
Adjustable end-of-travel stops
ISO 5211 mounting dimensions
? Electroless nickel plated output configurations provide maximum corrosion protection


SURE 100 actuator in typical butterfly valve application.

SURE 100 ACTUATOR
Output Torque
 


POSITION (DEGREES)

Voltage: 115 Vac or 220 Vac, 50/60 Hz, Ph-standard
Duty Cycle: 25% for 10 second unit 50% for 30 second unit
Enclosure: Meets all of the following in a single enclosure:Meets all of the following in a single enclosure:
Type 4, water tight indoor and outdoor locations;
Type 6, temporary submersion;
Type 7, explosion-proof, Class I, Groups C&D hazardous locations;
Type 9, dust ignition proof, Class II, Groups E,F&G, hazardous locations.
Ambient Temperature: -40°F to + 150°F. Optional heaters are recommended below 32°F ambient or in outdoor installations.
Limit Switches: 15 Amps resistive load at 115 Vac
Lubrication: High grade gear grease, permanently lubricated. Self-lubricating bearings.
Mounting: ISO 5211
Conduit Entry: 2 – ¾” NPT provided
Output Torque: 1,200 inch pounds
Rotation: CW or CCW for spring return
Weight: 70 pounds


 
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January 17, 2000