ARI-Armaturen’s extended
range of Temptrol selfacting
control valves provide
simple, economic solutions
for modulating temperature
control of steam, water and
thermal fluid. The control
systems rely on expansion
and contraction of a fluid in
a closed space, transferring
movement to a valve stem/spindle.

Fluid expansion is constant across
the selected range and results in
proportional control with
(theoretically) infinite
turndown. The proportional
band of the system is
dictated by the combination
of application, valve size
and movement in the
controller.

Easy to install and
maintain, the valves are said
to provide safe, accurate control.