Data Sheet for Product

Technical Instructions Flowrite 599 Series SKB/C Electronic Valve Actuator
Document Number 155-171P25 3-Position (Floating) Control
September 25, 2018
Page 4 Siemens Industry, Inc.
Service Kits
Manual override handle kit 4 268 5510 8
Plastic wiring compartment cover 4 104 5582 8
Stem retainer kit
Contains one stem nut (Item 6, Figure 7) and one stem retainer clip.
2-1/2 and 3-inch valves 599-10048
4, 5, and 6-inch valves 599-10049
Retainer clamp kit 599-10200
Ultraviolet (UV) resistant cable ties (pkg. of 8) 538-994
WARNING:
This product contains a spring under high compression. Do not attempt
to disassemble the actuator.
Operation
A 24 Vac control signal to Y1 causes the actuator’s coupling piece to move toward the
valve.
A 24 Vac control signal to Y2 causes the actuator’s coupling piece to move toward the
actuator.
The stroke travel is proportional to the length of time the signal is applied. The total time
for full stroke opening and closing is two minutes.
Figure 5. Spring Return.
• Spring return: When power is turned off or in the event of a power failure, the
actuator spring returns the valve to its normal position.
• Non-spring return: When power is turned off or in the event of a power failure, the
actuator maintains its position.
Figure 6. Valve Stem Travel Indication.