Brochure

Wireless Small Actuator -
MAC-WSA
9
Tunstall Corporation
118 Exchange Street • Chicopee, MA 01013
© July 2014
We reserve the right to alter designs, specifications and information without notice.
Phone (413) 594-8695 · Fax (413) 598-8109
www.tunstall-inc.com • www.maconcontrols.com
Bulletin-MC-WSA-1014
Electric Operators
Valve Installation
WARNING!
The valve may only be installed by qualified technicians. In addition to the generally valid installation guide-
lines, the following points are to be observed:
The pipeline system and the interior of the fitting must be free of foreign objects. In the event of contaminated
media, dirt collectors are to be inserted upstream of the valves with fine screens, mesh width 0.25 mm.
There must be no tension between the valve and the pipeline connection.
To avoid eddy formations in the valve body, the valve should be installed in a straight section of the pipe. A
distance of 10 times the nominal diameter is recommended between the valve flange and manifold or other
similar parts.
The installation location is to be selected so that the ambient temperature at the actuator is kept between 0
+50 °C / 32 °F TO 122 °F
When carrying out installation, the permissible maximum pressure difference Δp and the specified direction of
flow must be observed (see table in "Types" section).
The three-way valves are to be used as mixing valves. Observe the specified direction of flow.
Once the valve is installed, make sure the ball in the valve seating can be moved easily by pushing in the
valve stem.
Approximately 30 mm of free space is required above the actuator to install the actuator and remove the hous-
ing cover.
For safety reasons, do not suspend the small actuators from under the valve.
Observe the direction of flow arrow on the valve body. Inverting the direction of flow impairs control behav-
ior.