• Home
  • Download PDF
  • Order CD-ROM
  • Order in Print
FILLING HEATER WITH HEAT TRANSFER FLUID
HEATER MAJOR & SUBMAJOR COMPONENTS

TM-5-3895-374-24-2 M081 Asphalt Mixing Plant Manual
Page Navigation
  247    248    249    250    251  252  253    254    255    256    257  
(page 3-932) TM 5-3895-374-24-2 EXPANSION TANK The expansion tank stores extra heat transfer fluid (oil) and permits expansion of the oil in the system when heated. It also serves as a cold-oil seal which keeps only relatively cool oil in contact with the air.  The oil expands into the tank, from the heater through the two-inch pipe which is extended to the top of the tank.  When the oil contracts, it flows from the tank into the heater through one-inch heat trap, which also prevents hot oil circulation between the heater and the expansion tank.  The pipe plug in the trap is a clean-out for the trap, should it ever become clogged. Operating Oil Level The operating oil level as seen in the glass gauge should be high enough to permit the float switch to remain "on" when the oil is cold (low) and yet not high enough to overflow when hot (high). It is desirable to start the heater with the oil level low enough to allow for expansion of the oil as it heats. Usually after the system is brought up to operating temperature, a level in the upper half of the expansion tank is satisfactory.







Western Governors University

Privacy Statement
Press Release
Contact

© Copyright Integrated Publishing, Inc.. All Rights Reserved. Design by Strategico.