Basic Documentation

ContactCustomerSupportat1-888-593-7876toordertoday!92
EA0744R1
EARTH GROUND
ISOLATING CLASS 2

TRANSFORMER FOR

24 Vac POWER

120 Vac
Y2
Y1
G
NEUT
CONTROLLER
24
Vac
EA0745R1
EARTH GROUND
ISOLATING CLASS 2
TRANSFORMER FOR
24 Vac POWER
120 Vac
21
Y2
Y1
G
1
0
0
NEUT
CONTROLLER
24
Vac
Description
DesignedforusewithFlowriteandotherstandardvalveswitha
3/4-inch(20mm)stroke,theFlowriteSKDElectronicValveActuator
requires24Vacsupplytoprovideoatingcontrolofavalve.
Features
• Direct-coupledinstallationrequiresnospecialtools
oradjustments
• Visualandelectronicstrokeindication
• Die-castaluminumhousing
• 250lbf.(1150N)nominalforce
• Integralpositionfeedback
• Manualoverride
• Springreturnavailableforfail-safeposition
• Maintenance-free
Applications
TheFlowriteSKDElectronicValveActuatorwith24Vac,oating
controlisdesignedtobeusedwithFlowriteandotherstandard
valvesinliquidandsteamserviceapplications.
Wiring Diagrams
SKD Series Electronic Valve Actuators
24Vac,Floating3P
SpringReturnorNon-SpringReturn
Specications
Operating Voltage ................................................................ 24Vac±20%
Frequency ................................................................................... 50/60Hz
Power Consumption
 SKD82.50U ....................................................................................10VA
 SKD82.51U ....................................................................................15VA
 ControlSignal .......................................................... 3Position(Floating)
Function
NominalStroke .................................................................. 3/4”(20mm)
 RunTimewithControlOperation(FullStroke)
  PowerStroke,0to100%@60Hz ............................................. 90sec.
  ReturnStroke,100to0%@60Hz ............................................. 90sec.
  SpringReturn(SKD82.51Uonly) ................................................ 8sec.
 NominalForce
  NCand3-wayUpper
Stroke......................................................................................... 0%
Force .................................................................... 225lbs.(1000N)
  NOand3-wayByPass
Stroke..................................................................................... 100%
Force ................................................................... 258lbs.(1150N)
Agency Approvals ..........................................................................UL873,
CSAC22.2No.24-93
Operating
AmbientTemperature .........................................5to130°F(-15to55°C)
 MediaTemperature ........................................14to300°F(-10to150°C)
Conduit Opening ...................................................................... 1/2”NPSM
Mounting Location ................................................ NEMA1(InteriorOnly)
NSR SR