a hospital maintenance supervisor:
can I improve the efficiency of my sterilizer?"
A: Three ways:
1. It is important that steam
coming to the unit is of the highest quality. Install a steam separator to insure that
process steam is as dry as possible.
2. The steam trap draining this
particular type of process equipment should have good air-venting capability and should
not tee subject to air binding. Use Thermostatic or F&T traps on small to medium
units. Use F&Ts on large units.
3. Quick start-up is achieved
by utilizing a thermostatic vent to remove air from the top of the chamber.
a Maintenance Supervisor at a major chemical company:
"How can I
solve a coil corrosion problem in my unit heaters? A balance
thermostatic trap is draining the temperature-controlled units and
condensate is lifted to overhead return lines by steam pressure alone.
It is probable that this
hook-up was a cost-cutting contract job and for that reason a balance pressure
thermostatic trap was used. The corrosion is a function of the condensate back-up from the
trap's normal operation. Because of the lift, corrosion will also occur if the pressure is
turned off. A bellows thermostatic trap with the lift after it will also suffer damage due
to repeated back-flow surges from lifting. The easiest and most cost efficient solution is
to replace the trap with an F&T type resulting in minimum back-up during running
operation. The proper way is to gravity drain the condensate from the unit heater or
install a pump to lift the condensate to the overhead lines.
We welcome the opportunity to make your steam system trouble-free
and efficient. Your questions can contribute to helping others with similar
problems. Let's hear from you!
E-mail us with
your comments and we will post as many as we can. Check back as we update this