Flowserve Electric Actuator for use with Fail Safe Uninterruptable Power Supplies - Manual

© 2003, Flowserve Corporation, Printed in USA
LME0003-1 (AUTO-41) 2/03
Automax Valve Automation Systems
Installation, Operation and Maintenance Instructions
Flowserve Corporation 1350 N. Mountain Springs Parkway 1978 Foreman Dr.
Flow Control Division Springville, Utah 84663 Cookville, TN 38501
www.flowserve.com Phone: 801 489 8611 Phone: 931 432 4021
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Electric Actuator for use with Fail Safe Uninterruptable Power Supplies
Introduction
The use of uninterruptable power supply systems (UPS)
has greatly increased in the past few years. The existing
use of these devices, combined with the inherent low
power consumption of electric valve actuators, makes
an ideal combination for fail safe operation.
Features & Benefits
By ordering a specifically wired and fitted electric
actuator, a less expensive installation can be obtained.
Other manufacturers design special electronic boards
and use multiple tiny batteries as their fail safe option,
all in an effort to fit the components inside one housing.
Further, the size of the batteries requires them to be
replaced periodically.
Our actuator design takes advantage of a customer’s
existing UPS system. A simple relay mounted inside the
unit monitors line voltage. When an interruption in
power occurs, the relay shifts the signal to the user
defined fail safe position (CW or CCW). The customer’s
UPS then supplies the power to drive the unit in the
required direction. Automax can supply units for AC or
DC applications. See schematics on reverse. To order
actuator for use with an existing UPS system, simply add
the letter code “...RFS...” to the part number.
Alternatively to order a UPS system from Automax use
part number CB90 (see picture below). Consult factory
for sizing requirements.
Example: CE7A2RFS =
CE -Centura Series Actuator
7 -700 in*lbs torque
A -120VAC Motor
2 -(2) extra Switches
RFS -Relay for use with
Uninterruptable Power