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Ball Valve Seat Materials

Virgin TFE
Virgin TFE is a good all-around, general purpose seating material. TFE has outstanding resistance to chemical attack by a broad spectrum of organic chemicals, inorganic chemicals and solvents and is generally considered chemically inert. TFE is a self lubricating polymer with a very low coefficient of friction, which makes an excellent seating material for quarter-turn ball valves.


Color Code
Virgin TFE resin has a natural pigment of WHITE.
Temperature Range
-20oF to +400oF temperature range in ball valve applications.
Pressure Range
27" vacuum to 600 PSI non-shock water, oil or gas.
Unique Features
Best choice for low pressure sealing, lowest torque of all TFE polymers.
Typical Applications
Cold and hot potable water, HVAC chilled and hot water. Evaporative cooling systems
15% Reinforced TFE

Color Code
15% reinforced TFE is color coded BLUE. This pigment is permanently molded into the TFE polymer matrix.
Temperature Range
-20oF to +400oF temperature range in ball valve applications.
Pressure Range
27" vacuum to 1,000 PSI non-shock water, oil or gas.
Unique Features
Greater resistance to cold-flow than virgin TFE.
Typical Applications
Mid-range steam applications. Throttling and balancing of hydraulic heating and cooling systems.
    Ball Valve Seat Materials (2)
25% Reinforced TFE

Color Code
25% reinforced TFE resin has a color code of RED. This pigment is permanently molded into the TFE resin matrix.
Temperature Range
-20oF to +400oF temperature range in ball valve applications.
Pressure Range
27" vacuum to 2,000 PSI non-shock water, oil or gas.
Unique Features
Improved dimensional stability. Good wear properties.
Typical Applications
Steam service, natural and bottled gas distribution.
Carbon-Filled TFE
Carbon-filled TFE is an excellent seat material for steam applications as well as high efficiency oil-based thermal fluids. Other fillers, including graphite, enable this seat material to have better cycle life than other filled or reinforced TFE seats. Chemical resistance equal to other TFE and filled TFE products.

Color Code
Carbon filled TFE has a natural pigment of BLACK.
Temperature Range
-20° to +500° F temperature range in ball valve applications.
Pressure Range
27" vacuum to 2,000 PSI non-shock water, oil or gas.
Unique Features
Higher cycle life than other TFE resins.
Typical Applications
High pressure steam and thermal fluids.
Nylon

Color Code
Natural or Black
Temperature Range
-20° to +160° F temperature range in ball valve applications.
Pressure Range
27" vacuum to 3,000 PSI.
Unique Features
Used in oil and gas transmission.
Typical Applications
Grease, oils, aliphatic and aromatic hydrocarbons, paint, cosmetics, and detergents.