Selection Guide

4 Copyright 2008 TAC All Rights Reserved. F-26752-12
Features and Benefits
Features Benefits
Thermal isolation. Protects the actuator from cold or excess heat generated by chilled
water, hot water, or steam passing through the valve. Discourages
condensation.
Valve sizes 1/2" to 6" and 15 mm to 150 mm (Union
Straightway, NPT, Flanged, Metric) 2-Way and 3-Way.
Satisfies a wide range of application requirements.
Brushless DC motors used in all floating and proportional
spring return actuators, in floating and proportional
300 lb-in. non-spring return actuators, and in two-position
133 and 150 lb-in. spring return actuators.
Provides better accuracy with longer actuator service life.
Optional built-in auxiliary switch interfacing. Provides safety interfacing and signaling.
All models equipped with pigtail leads. Eases installation. Reduced electrician costs.
Optional manual operating lever on many spring return
and non-spring return assemblies.
Allows manual positioning of the valve.
NEMA 4 (IEC IP56) actuator enclosure for some
actuators.
Mx40-717x series actuators with customer supplied conduit
connectors provide water tight security.
Linkage kits are available separately. Easy field assembly of actuator to valve body.
Spring-loaded TFE valve packing. Self adjusting. No tightening required.
250 psig valve body static pressure rating per ANSI
Standards (B16.15—1985) for screwed cast bronze
bodies. 125 psig valve body static pressure rating for cast
iron flanged bodies.
Meets most demanding pressure requirements.
Robust structural steel linkage. Ensures precise alignment of the shaft to the valve stem for
extended life of the assembly.
Up to 250 psig (1724 kPa) close-off. Meets variety of close-off requirements.
Overload protection on actuator. Eliminates excessive stem force and over heating of actuator.
Position indicator. Allows for quick check of valve position.
Spring return models with normally open or normally
closed configurations.
Meets all fail safe mode applications.
1/2” to 2” 3-way valve sizes are offered in either a mixing
or diverting configuration.
Increases application flexibility.