Warren Controls 377 Float Cage - Manual (Page 3)

3
Level COntrols - IOM 377 Float Cage/326L & 322L Lever Valves 377_326L_322L_IOM_RevAa1112
The following is a typical example of a tank filling/deaerator application using properly sized,
selected, and maintained Warren Controls Level Controls. demand for water reduces the liquid
level in the tank. The [A]
377 Float Cage opens the [b] 322L or 326L Lever Valve to supply intake
water to the tank. When the water reaches the desired level the float cage closes the lever valve
to accurately maintain the liquid at the desired level. deaerators, tanks with steam blankets,
produce additional liquid as the steam condenses. The [C]
313 Overflow Trap traps and relieves
this condensate through its internal pilot without the steam blanket escaping. overflow can occur
if the water entering the tank exceeds its capacity. The 313 overflow Trap relieves the overflow
through its internal single seated main stage valve. Falling liquid levels and condensing steam
can cause a vacuum that can damage the tank. The [d]
200 Vacuum Breaker opens to admit
outside air to relieve the vacuum in the tank. Warren Controls Level Controls are also used on boiler
make-up water tanks and many other storage tank applications.
Warren Controls
Level Controls at Work...