A general definition of the trim is the 'wetted internal parts' of the
valve. The trunnion and stem are both wetted by the fluid in a ball valve.
The trim material selected is normally better in corrosion / erosion
resistance. The other consideration for stem and trunnion is the material
strength.
Sajit Viswan
AUH A353 NBAD 22 FL,
611 6351
ADA07730 / AE001WD1795
Save a tree...please don't print this e-mail unless you really need to.
Received on Wed Oct 03 02:34:00 2007
This archive was generated by hypermail 2.1.8 : Tue Mar 04 2008 - 11:40:52 EST