Material for Each Valve
Silicone, Buna, EPDM, Viton®
Viton® EPDM, Silicone, Calrez® (special order)
Viton®, Teflon-coated Viton®
& Body "O" rings
commonly used seat material for food application. Has
extensive chemical and temperature resistance.
suitable for great temperature fluctuations: Teflon tends
to coldflow and does not return to its original shape.
be used as a coating on other elastomers.
temperature range: -30°F to 400°F
compound provides an elastic seat that makes for leak-free,
easy handling of valve. Least expensive elastomer.
chemical resistance: excellent for use with petroleum
solvents, gasoline, alcohol, etc...
temperature range: -40°F to 225°F
good seat material, very elastic self-lubricating - provides
a tight easy seal, reducing torque needed to close the
to certain chemicals: do not use with solvents,
petroleum products, etc. (check with us for non-food usage)
temperature range: -85°F to 450°F
for steam and hot water to 350°F
resistance to mild acids, dilute alkalis, silicone oils
and greases, ketones and alcohol.
use for petroleum oils or di-ester base lubricants.
temperature range: -65°F to 300°F
extreme temperature and good chemical resistance.
at high temperature when buna or EPDM is not suitable.
temperature range: -31°F to 400°F