Flowrite™ 599 Series
Technical Instructions
Document No. 155-180P25
EA 599-4
February 28, 2018
SKD6xU Electronic Valve
Actuators
24 Vac Proportional Control
Siemens Industry, Inc.
Description
The Flowrite 599 Series SKD6xU Electronic Valve Actuators require a 24 Vac supply
and receive a 0 to 10 Vdc or a 4 to 20 mA control signal to proportionally control a
valve. These actuators are designed to work with Flowrite 599 Series valves with a 3/4-
inch (20 mm) stroke.
Features
• Direct-coupled installation requires no special tools or adjustments
• Visual and electronic stroke indication
• Die-cast aluminum housing
• Manual override
• Spring return to fail-safe position or non-spring return fail-in-place
• Automatic stroke calibration
• Maintenance-free
Application
These electronic actuators are designed to be used with Flowrite 599 Series valves and
Siemens Industry standard valves with a 3/4-inch (20 mm) stroke in liquid service
applications.
CAUTION:
Do not use in low pressure steam applications.
Product Number
SKD62U, Spring Return (Actuator Prefix Code 274)
SKD60U, Non-Spring Return (Actuator Prefix Code 267)
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.
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