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AHEAD OF THE FLOW ®<br />
www.nibco.com<br />
Revision 6/30/2005<br />
<strong>Ball</strong> Valve Seat Materials<br />
Virgin PTFE<br />
Virgin PTFE is a good all-around, general purpose seating material. PTFE has outstanding resistance to chemical attack by a<br />
broad spectrum of organic chemicals, inorganic chemicals and solvents and is generally considered chemically inert. PTFE is<br />
a self-lubricating polymer with a very low coefficient of friction, which makes an excellent seating material for quarter-turn ball<br />
valves.<br />
Color Code<br />
Virgin PTFE resin has a natural pigment of WHITE.<br />
Temperature Range<br />
-20° to +400° F temperature range in ball valve applications.<br />
Typical Applications<br />
Cold and hot potable water, HVAC chilled and hot water.<br />
Evaporative cooling systems. Medical gas valves.<br />
NIBCO Figure Number Designation “Y”<br />
Pressure Range<br />
27" vacuum to 600 PSI non-shock water, oil or gas.<br />
Unique Features<br />
Best choice for low pressure sealing, lowest torque of all<br />
PTFE polymers.<br />
Product Availability<br />
T/S-580/580-66<br />
T/S-590/595-Y/66<br />
T-560-BR-Y-20/66<br />
T/S-FP-600<br />
15% Reinforced PTFE<br />
NIBCO uses short strand fiberglass as a reinforcement for our mid-range ball valve products. Adding reinforcement increases<br />
the pressure containing capabilities of PTFE by reducing its tendency to cold-flow.<br />
Color Code<br />
15% reinforced PTFE is color coded BLUE. This pigment is<br />
permanently molded into the PTFE polymer matrix.<br />
Temperature Range<br />
-20° to +400° F temperature range in ball valve applications.<br />
Pressure Range<br />
27" vacuum to 1,000 PSI non-shock water, oil or gas.<br />
Unique Features<br />
Greater resistance to cold-flow than virgin PTFE.<br />
Typical Applications<br />
Mid-range steam applications. Throttling and balancing of<br />
hydronic heating and cooling systems.<br />
NIBCO Figure Number Designation “R”<br />
Product Availability<br />
T/S-580-70/70-66<br />
T/S-585-70/70-66<br />
F-510/530-CS-R/S6-R<br />
TC-580-CS-R<br />
T-560-BR-R-20/66<br />
T-570-CS-R/S6-R<br />
T-580-CS-R/S6-R<br />
T/K-595-CS-R/S6-R<br />
TM/KM/BM-590/595-CS-R/S6-R<br />
NIBCO INC. WORLD HEADQUARTERS • 1516 MIDDLEBURY ST. • ELKHART, IN 46516-4740 • USA • PH: 1.800.234.0227<br />
TECH SERVICES PH: 1.888.446.4226 • FAX: 1.888.336.4226 • INTERNATIONAL OFFICE PH: +1.574.295.3327 • FAX: +1.574.295.3455<br />
www.nibco.com<br />
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