Concoa 452 Series, Installation And Operation Instructions Manual

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RWR
Figure / R PTFE Taping Procedure
INSTALLATION OF GAS CONNECTIONS
Note: BE SURE TO CONSIDER ALL FACTORS WHEN SELECTING
MATERIALS FOR GAS CONNECTIONS. For example, if you
have both high pressure and corrosive service, select material
that is suitable for both.
L’ Do not use oil or grease on fi ttingsV especially not on oxidizing gas service equipment’
U’ Be sure that all fi ttings are secure and leak tight’ PTFE tape should be used on pipe fi ttingsV but
avoid impinging on the gas stream’ Before applying PTFE tapeV inspect the NPT threads and
if necessaryV clean the
fi tting to remove any dirt or thread sealant that remains on the threads’
Start the PTFE tape on the second thread as shown in Figure /’ Make sure the tape does
not overlap the end of the
fi tting’ As the tape is wrapped in the direction of the thread spiralV
pull tightly on the end of tape so that the tape conforms to the threads’ Apply two overlapping
layers of PTFE tape’ Cut off the excess tape and press the end
fi rmly into the threads’
Pressure Adjustment
The Vaporizing Regulator’s delivery pressure is set at the factory’ If the delivery pressure needs to be
adjusted follow the directions below’
L’ The pressure adjustment is made from the top of the regulator bonnet’
U’ Locate and remove the acorn nut at the top of the bonnet’
/’ Using a /ILW” allen wrench inserted into the set screw beneath the acorn nutV turn the set screw
to vary the outlet pressure of the regulator’ Turning the set screw clockwise will increase the
pressure setting and counter clockwise will reduce the pressure setting’
”’ When the pressure is adjusted to the desired levelV replace the acorn nut and secure in place’
CAUTION! NEVER EXCEED THE OUTLET PRESSURE RATING
OF THE REGULATOR.