Siemens Building Technologies SAX Valve Actuator Data Sheet

Siemens
Product Guard
Warranty

SAX Valve Actuator

24 Vac, Floating or Proportional Control
Floating, 0 to 10 Vdc or 4 to 20 mA
Non-Spring Return

Flowrite Globe

Flowrite SAX Valve Actuator.

Description

Designed for use with Flowrite valves with a 3/4-inch
(20 mm) stroke. The Flowrite SAX Electronic Actuator
requires either a 24 Vac or 24 Vdc supply, and receives a
0 to 10 Vdc or 4 to 20 mA control signal to proportionally

control the valve or a oating control signal to provide
oating control of the valve.

Features

• Proportional or oating (3P) control

• Direct-coupled installation

• Visual and electronic stroke indication

• Manual override

• Non-spring return

• 180 lb. (800 N) nominal force

• Automatic calibration (SAX61.03U only)

• Electro-mechanical switches protect components from
overload and stall condition

• Maintenance-free

Applications

The Flowrite SAX Electronic Valve Actuator is designed
to be used with the Flowrite and other valves in liquid
and low pressure steam service applications. They are
ideal for installations requiring quick response and
excellent resolution.

A-183

Valves

Siemens
Product Guard
PLUS 3 Warranty

www.usa.siemens.com/hvac

SAX Actuator Specifications

A-184

Operating Voltage .............................. 24 Vac ±20%, 24 Vdc +20%/-15%

Frequency ..................................................................................45-65 Hz

Power Consumption (SAX61.03U) .................................................. 8 VA

Power Consumption (SAX81.03U) .................................................. 5 VA

Control Signals (SAX61.03U)
Control Input (Y)

Voltage............................................................................ 0 to 10 Vdc

Current................................................................................. 4-20 mA

Control Input (Z)

Resistance ..................................................................... 0-1000 Ohm

Position Feedback Output (U) ............................................. 0 to 10 Vdc

Control Signal (SAX81.03U) ................................... 3-Position (Floating)

Function

Nominal Stroke ................................................................. 3/4" (20 mm)

Run Time ................................................................................... 30 sec.

Nominal Force ............................................................... 180 lb. (800 N)

Agency Approvals ......................................................................... UL873

CSA C22.2 No. 24-93

Operating and Storage Temperature

Operating Temperature .................................. 23 to 131°F (-5 to 55°C)

Storage Temperature ...................................... 5 to 131°F (-15 to 55°C)

Transport Temperature ................................ -13 to 158°F (-25 to 70°C)

Ambient Humidity ................................. 5 to 90% RH, Non-condensing

Media Temperature .............................................. Up to 266°F (130°C)

Conduit Opening ................................................................... 1/2" NPSM

Mounting Location .............................................. NEMA 1 (Interior Only)

SAX Actuator Product Ordering

Description Part No. Actuator Prex Code

24 Vac Proportional, Non-Spring Return SAX61.03U 371
Floating 3P, Non-Spring Return SAX81.03U 373

Dimensions

Valves

Dimensions shown in inches (mm).

A B C C1 C2 D E

9.5 (242) 5 (125) 6 (150) 2.7 (68) 3.3 (82) 3 (80) 4 (100) 4 (100) 8 (200)

Accessories & Service Kits

www.usa.siemens.com/hvac

A-257