ZTV ZTR

— 2 —
ZTV/ZTR
Installation
The 3-way valve is of a mixing type and must therefore be
mounted in the mixing point.
• Before installation of the control valve, ensure that the
pipe is clean. Make sure that pipe scale, metal chips,
welding slag and other foreign materials are removed.
• For maximum efficiency and minimum wear, install
the valve in a vertical position with the stem point-
ing upward. If the valve is mounted with the actuator
on the side, more wear is caused to the valve packing
box. The valve should never be mounted at an angle of
more than 90°. At high media temperatures, the valve
is to be mounted with the spindle to the side in order
to minimise heating of the valve actuator.
90º
90º
• Install the valve according to the fluid direction arrow
shown on the valve.
• Make sure there is ample space above the valve to
facilitate easy removal of the valve actuator.
• Fit a strainer/filter upstream of the valve to prolong the
equipment’s life span.
• A water quality according to VDI 2035 is recom-
mended.
S
ystemair Sverige AB
Industrivägen 3 · SE-739 30 Skinnskatteberg
[phone] · [e-mail]