Matheson
Lecture Bottle Control Valves have been specifically designed
for use with gases supplied in lecture bottles. These valves
function as metering valves and are rough controls for
dispensing product from lecture bottles. They do not control
pressure or back-pressure in a system. If greater accuracy is
required for the application, Matheson recommends the use of the
appropriate lecture bottle regulator listed in the regulator
section of this catalog. The lecture bottle control valves
should be used with gases compatible with the materials of
construction.