User Guide

Insulation of Ball Valve Assembly

The ball valve should be completely insulated to minimize the effect of heat transfer and

condensation at the actuator.

Caution: The actuator itself must not be insulated. Doing so can result in excess heat or

condensation within the actuator.

Temperature Limits for Ball Valve Assembly

When installing the ball valve assembly, observe the minimum and maximum temperature

limits, given below (Table-2).

Installation of Ball Valve Assembly

Mount the valve assembly in the piping according to Figure-5.

Notes:

• 2-way ball valves containing characterized inserts must be piped in the direction of the

arrow on the side of the valve body.

• 2-way spring return ball valve assemblies are shipped either normally open, voltage rise

to close (actuator code 53x), or normally closed, voltage rise to open (actuator code

52x).

• Spring return 3-way ball valve assemblies are shipped either A to AB closed, voltage

rise to open (actuator code 52x), or A to AB open, voltage rise to close (actuator code

53x).

• All 2-way non-spring return ball valve assemblies are shipped open, voltage rise to

close.

• All non-spring return 3-way ball valve assemblies are shipped A to AB open, voltage rise

to close.

• Mount the valve in a weather-protected area, in a location that is within the ambient

temperature limits of the actuator.

• When selecting a location, allow sufficient clearance on all sides to allow for any

maintenance that may be needed. Refer to Ball Valve Assemblies and Ball Valve Body

/Linkage Assemblies Selection Guide, F-27086, for dimensions.

• Mount the valve assembly so that the actuator is above the horizontal, relative to the

valve. This ensures that any condensate that forms on the valve body will not travel

into the actuator, where it may cause corrosion or electrical malfunction.

Table-2 Ambient Temperature Limits for Ball Valves Assemblies and Actuators.

Ambient Temperature For

Temperature Limits

Minimum °F (°C) Maximum °F (°C)

Valve Fluid (water) 20 (-7) 250 (121)

Mx41-6043

Mx41-6083

Storage -40 (-40) 158 (70)

Operating -25 (-32) 130 (55)

Mx40-704x

Storage -40 (-40) 160 (71)

Operating -22 (-30) 140 (60)