sec4

Bearing materials are required where two surfaces are in relative motion and there is an applied load between them. The characteristics of the materials, both in terms of their bulk properties and at the surface where contact may occur, are therefore important.

http://www.cda.org.uk/megab2/costeff/tn45/sec4.htm

Microsoft Word - How is BrassCraft Green Stops Letter.doc

www.brasscraft.com

Supply stops are made largely from brass bar stock, copper alloy CDA3600. (This material makes up between 80-85%, by weight, of most of our models.) This includes: • Traditional multi-turn stops, • Kwik Turn ball stops and • G2 quarter turn supply stops.

http://www.brasscraft.com/PDF/How_is_BrassCraft_Green_Stops.pdf

BALL VALVES (MB SERIES) 4121-MB - Parker

www.parker.com

An injection molded grade of perfluoroalkoxy (PFA) completely surrounds the entire ball area and a portion of the stem, creating a relationship that can not be achieved with separately made components

http://www.parker.com/portal/site/PARKER/menuitem.7100150cebe5bbc2d6806710237ad1ca/?vgnextoid=f5c9b5bbec622110VgnVCM10000032a71dacRCRD&vgnextfmt=EN&vgnextdiv=688040&vgnextcatid=1298&vgnextcat=BALL%20VALVES%20(MB%20SERIES)%204121-MB

Parker - Engineering Your Success

www.parker.com

PR Series Plug Valves provide positive leak tight shut-off, high flow capacity, and quick quarter-turn operation in a compact attractive package. The patented blow-out resistant seat design offers reliable sealing technology at all operating pressures.

http://www.parker.com/portal/site/PARKER/menuitem.7100150cebe5bbc2d6806710237ad1ca/?vgnextoid=f5c9b5bbec622110VgnVCM10000032a71dacRCRD&vgnextfmt=default&vgnextdiv=687516&vgnextcatid=1340&vgnextcat=ROTARY%20PLUG%20VALVES%20(PR%20SERIES)%204126-PR