Sliding Stem & Rotary Pneumatic Control Valve
A business unit of Curtiss-Wright Valves Division. With over 30 years' experience, we contribute to safer and more reliable plant operations worldwide by providing control valve systems, technology, and engineering that enables our customers to perform efficiently and achieve expected results.
Dyna-Flo provides engineered control valve systems to help customers achieve safe and reliable operation, while reducing total cost of ownership
Product
360 Series
Heavy-duty globe style control valve.
Size: 1", 1½", 2", 3", 4", 6", and 8"
ASME Ratings as per B16.34: 150 / 300 / 600
End Connection Style: Raised Face (RF), Ring Type Joint (RTJ), NPT (FNPT) (1" - 2")
Available Body Styles: Globe, Angle
Characteristics: Equal Percent, Linear, Quick Opening, Low-Noise, Anti-Cavitation
Available Shut-off Class: IV, V, VI
Application: The Model 360 control valve is a heavy-duty globe style control valve. These valves are used in all kinds of demanding applications, including oil and gas production and chemical process industries.
390 Series
Heavy-duty, high pressure globe style control valve.
Size: 2", 3", 4", 6"
ASME Ratings as per B16.34: 900 / 1500
End Connection Style: Raised Face (RF), Ring Type Joint (RTJ)
Available Body Styles: Globe, Angle
Characteristics: Equal Percent, Modified Equal Percent, Linear, Low Noise, Anti-cavitation
Available Shut-off Class: IV, V
Application: The Model 390 Control Valve is a heavy-duty, high pressure globe style control valve with metal seats.
DF400 Series
Eccentric Rotary Plug Control Valve System
Service: Liquid / Gas
Size Range: 1 / 2 / 3 / 4 Inch
Pressure Range: ASME 150 / 300
Temperature Range: -320F to +750F
End Connection: RF
Characteristic: Linear
Features: Powerful compact design, Easy maintenance and trim change, NACE Ready
320 AxFlo Series
Anti-Cavitation Sliding Stem Control Valve
Service: Liquid / Gas
Size Range: 2 / 3/ 4 / 6 / 8 Inch
Pressure Range: ASME 300 / 600 / 900 / 1500
Temperature Range: -50F to +600F
End Connection: RF / RTJ / NPT / BWE / SWE
Characteristic: Linear
Features: 320 AxFlo valves handle higher pressure drops than standard anti-cavitation valve trim
Model DF2000
Globe style control valves used in all kinds of demanding oil and gas applications
Size: 1", 2"
ASME Ratings as per B16.34: 150 / 300 / 600 / 900 / 1500 / 2500 (2" Only)
End Connection Style: Raised Face (RF), Ring Type Joint (RTJ), NPT (FNPT)
Available Body Styles: Globe, Angle
Characteristics: Dyna-Form, Dyna-Flute (1-Flute, 3-Flute)
Available Shut-off Class: IV, V
Application: The Model DF2000 Control Valve is a general purpose globe style control valve suitable for liquid and gas applications.
380 Series
General purpose valve suited for higher pressures.
Size: 3", 4" x 3", 8"
ASME Ratings as per B16.34: 1500 (8" Only), 2500
End Connection Style: Raised Face (RF), Ring Type Joint (RTJ), Butt Weld End (BWE)
Available Body Styles: Globe
Characteristics: Equal Percent, Modified Equal Percent, Linear, Low Noise, Anti-cavitation
Available Shut-off Class: IV, V
Application: The Model 380 Control Valve is a general purpose valve suited for higher pressures.
570 Series
Segmented Ball style control valve is suited to high flow, low pressure drop services.
Size: 570: 1", 1-1/2", 2", 3", 4", 6", 8"
571 / 573: 1", 1-1/2", 2", 3", 4", 6", 8", 10", 12", 16"
ASME Ratings as per B16.34: 570: 150 / 300 / 600 Wafer
571: 150 Flanged
573: 300 Flanged
Seal Types: Composition Ultra, Metal, Flow Ring
Available Shut-off Class: IV, VI
Application: The Model 570 Series Segmented Ball style control valve is suited to high flow, low pressure drop services. The straight through unrestricted flow path provides higher capacity than globe style valves. Both Models 571 and 573 have raised face flanged bodiesSegmented Ball style control valve is suited to high flow, low pressure drop services.
590 Series
The Model 590 series rotary ball style control valve is used in all kinds of demanding applications.
Size: 4", 6", 8", 10", 12",14", 16"
ASME Ratings as per B16.34: 600 / 900: 4", 6", 8", 10", 12", 14"
600: 16"
End Connection Style: Raised Face (RF), Ring Type Joint (RTJ)
Seal Types: Single Seal, Dual Seal, Flow Ring
Available Shut-off Class:
Single Seal and Dual Seal: 0.0001% of maximum valve capacity (less than 1% of Class IV, ANSI/FCI 70-2 and IEC 60534-4)
Flow Ring: 1% of maximum valve capacity
Application: the Model 590 Series Ball style control valve is suited to high flow, low pressure drop services. The straight through unrestricted flow path provides higher capacity than globe style valves. Both Models 571 and 573 have raised face flanged bodies.
DFC & DFO
Linear actuator's large diaphragm area allows for low supply pressure operation
Fail Position: DFC: Closed / DFO: Open
Diaphragm Areas (Inches²): 46 / 69 / 105 / 156 / 220
Available Mounting Connections: 2-1/8" / 2-13/16" / 3-9/16"
Operating Range: 3-15 Psig (21-103 kPag), 6-30 Psig (41-207 kPag)
Application: The DFC&DFO Series linear actuator's large diaphragm area allows for low supply pressure operation, and the spring provides fail safe positions of a control valve on loss of pneumatic supply. Model DFC actuators are fail closed (down) and Model DFO actuators are fail open (up).
DFR
Versatile rotary diaphragm actuator typically used on ball or butterfly valves
Fail Position: Open or Closed
Diaphragm Areas (Inches²): 26 / 49 / 69 / 156 / 220
Operating Range: 3-15 Psig (21-103 kPag), 6-30 Psig (41-207 kPag)
Application: The Model DFR is a versatile rotary diaphragm actuator typically used on ball or butterfly valves like the 570 or 660 series control valves. It can be configured for fail closed or fail open applications and a variety of mounting and shaft connection adaptation is available for any other rotary application. High strength and low dead band are achieved with our cast steel clamped lever design along with added safety and reliability.
