Technical Instructions Document No. 155-717 September 25, 2018 Flowrite™ 599 Series SKB/C/D 62UA Series Electronic Valve Actuator 24 Vac Proportional Control Advanced Features SKD SKB/C Description The Flowrite 599 Series SKB/C/D62UA Electronic Valve Actuator requires a 24 Vac supply and receives a 0 to 10 Vdc or a 4 to 20 mA control signal to proportionally control a valve. This actuator is designed to work with valves with a 3/4-inch (20 mm) or 1-1/2inch (40 mm) stroke.
Technical Instructions Document Number 155-717 September 25, 2018 Flowrite 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features Product Numbers Table 1. Product Numbers. Actuator Stroke Order Number SKB62UA 3/4-inch (20 mm) 1-1/2 inch (40 mm) SKD62UA SKC62UA Warning/Caution Notations WARNING: Personal injury or loss of life may occur if you do not perform a procedure as specified. CAUTION: Equipment damage or loss of data may occur if you do not perform a procedure as specified.
Flowrite 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features Terminal Y Voltage Input impendence Current Input impedance Signal resolution Hysteresis Terminal Z Resistance Override control functions Z not connected Z connected directly to G Z connected directly to G0 Z connected to M via 0 to 1000 ohm Signal Inputs, Continued Terminal U Voltage Load impedance Current Load impedance Technical Instructions Document Number 155-717 September 25, 2018 Signal Inputs Ambient Conditions Agency
Technical Instructions Document Number 155-717 September 25, 2018 Miscellaneous Flowrite 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features Materials Actuator housing and bracket Housing box and manual adjustor Conduit opening Dimensions Die-cast aluminum Plastic 1/2-inch NPSM See Figure 23, Figure 24, Figure 25 and Figure 26. Weight SKB62UA SKC62UA SKD62UA Housing NEMA Rating Advanced Features Direction of Operation Direct acting / reverse acting 18.9 lbs (8,60 kg) 22.
Flowrite 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features Accessories, Continued Technical Instructions Document Number 155-717 September 25, 2018 599-10071 The SKD actuator is UL listed to meet NEMA TYPE 3R requirements (a degree of protection against rain, sleet, and damage from external ice formation) when installed with this weather shield and outdoor-rated conduit fittings in the vertical position. See Service Kits for replacement ultraviolet resistant cable ties. Figure 4.
Technical Instructions Document Number 155-717 September 25, 2018 Flowrite 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features Valve Details, Continued 1. Pressure cylinder 2. Piston 3. Oscillating pump 4. Return spring 5. Bypass valve 6. Valve stem retainer 7. Manual override knob 8. Position indicator Figure 7. SKD Valve Parts. Standard Operation Figure 8. SKB/C Valve Stem Travel Indication. Direct Acting Figure 9. SKD Valve Stem Travel Indication.
Flowrite 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features Mounting and Installation Technical Instructions Document Number 155-717 September 25, 2018 The vertical position is the recommended position for mounting and the only position for NEMA Type 3R rating with the Weather Shield. Acceptable mounting positions are shown in Figure 10. Figure 10. Acceptable Mounting Positions.
Technical Instructions Document Number 155-717 September 25, 2018 Flowrite 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features Stroke Calibration To determine the stroke positions 0% and 100% in the valve, calibration is required when the valve/actuator are commissioned for the first time. The actuator must be mechanically connected to a valve and must have a supply voltage of 24 Vac.
Flowrite 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features Technical Instructions Document Number 155-717 September 25, 2018 Start-up, Continued Advanced Features 1 2 3 4 Figure 13. DIP Switches.
Technical Instructions Document Number 155-717 September 25, 2018 Start-Up, continued Selecting the Direction of Operation • • Flowrite 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features With normally-closed valves, "direct-acting" means that with a 0 Vdc signal input, the valve is closed. With Normally-open valves, "direct-acting" means that with a 0 Vdc signal input, the valve is open.
Flowrite 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features Start-up, continued Normally Closed Valve Technical Instructions Document Number 155-717 September 25, 2018 When actuator pressure cylinder: Moves outward (0 to 1): Valve opens. Moves inward (1 to 0): Valve closes. Normally Open Valve When actuator pressure cylinder: Moves outward (0 to 1): Valve closes. Moves inward (1 to 0): Valve opens.
Technical Instructions Document Number 155-717 September 25, 2018 Start-up, Continued Automatic Operation Flowrite 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features When returning to automatic control, you must turn the crank arm of the manual setting knob counterclockwise until the red numbers disappear. It is essential that the window is clear and the crank arm is snapped into position. See Figure 17. SKB/C Figure 17. SKB/C Automatic Operation.
Flowrite 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features Wiring Technical Instructions Document Number 155-717 September 25, 2018 Do not use auto-transformers. Use earth ground isolating step-down Class II power supplies. Determine supply transformer rating by summing total VA of all actuators used.
Technical Instructions Document Number 155-717 September 25, 2018 Flowrite 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features Wiring Diagrams, Continued System neutral (SN) red System potential (SP) black 24 Vac/30W Figure 21. Auxiliary Switch ASC1.6. Figure 22. Stem Heating Element ASZ6.6. Dimensions Figure 23. Dimensions of 599-10065 SKB\C Weather Shield in Inches (Millimeters). Page 14 Siemens Industry, Inc.
Flowrite 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features Technical Instructions Document Number 155-717 September 25, 2018 Dimensions, Continued Figure 24. Dimensions of 599-10071 SKD Weather Shield in Inches (Millimeters). Figure 25. Dimensions of SKB/C Weather Shield, 599-10071 in Inches (Millimeters). Siemens Industry, Inc.
Technical Instructions Document Number 155-717 September 25, 2018 Flowrite 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features Dimensions, Continued Figure 26. Dimensions of SKD Actuator in Inches (Millimeters). Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. Flowrite is a trademark of Siemens Industry, Inc.
