DFRP Rotary Pneumatic Piston Actuator
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DFRP Rotary Pneumatic Piston Actuator

  • 20 PSIG (1.38 BARG) Minimum Cylinder Operating Pressure
  • 1/2" (12.7mm) to 2-1/2" (63.5mm) Valve Shaft Compatibility
  • 90 Degree Rotation
  • -40°F to 180°F (-40°C to 82°C) Standard Temperature Limitations
More Details

DFRP rotary double-acting pneumatic piston actuators are designed for high torque applications. When combined with a positioner or a two-position control signal, DFRP actuators can be used for throttling or on/off control. DFRP actuators will always require a volume tank in order to hold a fail position.

Overview

DFRP Rotary Pneumatic Piston Actuator

  • Handwheels and Travel Stop Options Available

  • Versatile Instrument Mounting Options

  • Splined Connection

  • Unique Design Allows For Low-Cost Cylinder Replacement

  • Heavy Duty Protective Coatings Available

Product Specifications

DFRP VALVE SHAFT COMPATIBILITYOpen arrow
AVAILABLE VAVLE SHAFT COMPATIBILITY
VALVE SHAFT CONNECTION SIZES ACTUATOR SIZES
INCH mm 028 079 113 113 154
3/4 19.1 ü ü ü û û
7/8 22.2 ü ü ü û û
1 25.4 ü ü ü û û
1-1/4 31.8 ü ü ü û û
1-1/2 38.1 ü ü ü û û
1-3/4 44.5 ü ü ü ü ü
2 50.8 ü ü ü ü ü
2-1/8 54 ü ü ü ü ü
2-1/2 63.5 û û û ü ü
4 101.6 û û û ü ü
DFRP OPERATING PRESSURE, PISTON AREA AND TORQUEOpen arrow
AVAILABLE DFRP OPERATING PRESSURE, PISTON AREA AND TORQUE
ACTUATOR SIZE MAXIMUM OPERATING PRESSURE PISTON AREA 0-90 DEGREE MAXIMUM TORQUE TORQUE PER PSIG
PSIG BARG INCH2 cm2 lbf-in N•m lbf-in N•m
028 110 7.58 28.27 182 7,104 9,626 47 5.31
079 100 6.89 78.54 507 13,800 18,710 175 19.77
112 85 5.86 113.1 730 16,896 22,913 199 22.48
113 110 7.58 113.1 730 56,004 75,926 373 42.14
154 110 7.58 153.94 993 65,004 88,128 433 48.92
DFRP CYLINDER DISPLACEMENT VOLUMEOpen arrow
AVAILABLE DFRP CYLINDER DISPLACEMENT FOR 90 DEGREE ROTATION
ACTUATOR SIZE ACTUATOR PISTON POSITION
PISTON UP PISTON DOWN
INCH3 cm3 INCH3 cm3
028 125 2,048 131 2,147
079 361 5,916 369 6,047
112 517 8,472 564 9,242
113 942 15,437 997 16,338
154 1,290 21,139 1,361 22,303

DFRP Actuator Documentation

DFRP Instruction Manual
Dynaflo, DynaFlo, Manuals & Software, Rotary Actuator
DFRP Actuator Operation, Parts, Maintenance and Assembly Instructions
DFRP Sales Bulletin
Brochures, DynaFlo, Dynaflo, Rotary Actuator
DFRP Actuator Technical Specifications
Refer to our FloSpec software for product selection, sizing and ordering

Refer to our FloSpec software for product selection, sizing and ordering

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