ZERO LEAKS
PERFECT SEALING
ZERO LEAKS
PERFECT SEALING
Our ball valves with metal seats KTN offer total tightness in applications with severe conditions.
Pentafite seats on ball valves
Pentafite is a metallic component with a metallic matrix that has a solid lubricant dispersed inside. It is the result that is obtained through a synthesizing process in which, from fine powders of this unique component, it is possible to produce the metal rings that form the seat insert for our ball valves with metal seat intended for services with high temperature, high pressure or with pressure / temperature combination higher than the tolerable limits for polymeric material.
Low valve torque
The dispersion of lubricant protects the seat and ball from friction
The presence of the dispersion of the solid lubricant within the metal matrix reduces the friction of the seat on the ball and also the torque of the valve. For the same reason, seizures or chafing between the seat and ball surfaces are eliminated even when the working temperature is high.
Easy maintenance
No additional machining
Because no additional machining is necessary to fit the seats against the ball, the assembly and maintenance of the valve is very easy strong when using metal Pentafite seats.
Perfect sealing
Perfect adaptation that eliminates any possible vanishing point
The elastic properties of the Pentafite seat material allow the automatic adaptation of the seats against the shape of the sphere, eliminating machining imperfections. In this way, it is possible to eliminate any leakage point and achieve perfect sealing.
The presence of the solid lubricant inside allows the Pentafite material to reach very high specific working pressures, resulting in perfect tightness when high-pressure gases must be stopped .
Available seat configurations
Our seats and their mechanical characteristics
Here is a table with some of our configurations.
| Material | Metal mesh | Solid lubricant | Work temperature | Work pressure | Size |
| SXX series (Nickel base) | Nickel | Graphite o MoS2 | -100ºC / +780ºC | ANSI150-2500 API 10000 PN10-2500 | 1/2" - 20" |
| RXX Series (Copper Base) | Copper | Graphite | -100ºC / +500ºC | ANSI150-2500 | 1/2" - 20" |
| BXX Series (Carbon Base) | Carbon | Graphite | -100ºC / +400ºC | PN10 - 40 ANSI150-300 | 1/2" - 4" |
| Cryogenic | Only Grafoil® gaskets are used, inherently resistant to high temperatures. | -200ºC / +700ºC | ANSI150-1500 PN16-250 | 1/2" - 8" | |
| Friction factor against hardened ground surface 1500 HV min. (SXX PENTAFITE Series) | 0.2 |
| Specific maximum working pressure | 30/Kg/mm2 |
| Maximum working temperature | 780ºC |
| Maximum working pressure | 720 bar |
| Thermal expansion 0ºC - 200ºC | 14 x 10-6 |
Contact us
The KTN team will assist you in your query
Pentafite seats on ball valves
Pentafite is a metallic component with a metallic matrix that has a solid lubricant dispersed inside. It is the result that is obtained through a synthesizing process in which, from fine powders of this unique component, it is possible to produce the metal rings that form the seat insert for our ball valves with metal seat intended for services with high temperature, high pressure or with pressure / temperature combination higher than the tolerable limits for polymeric material.
Low valve torque
Lubricant dispersion protects seat and ball from friction
The presence of the dispersion of solid lubricant within the metal matrix reduces seat friction on the ball and also valve torque. For the same reason, seizures or irritations between the surfaces of the seat and the ball are eliminated even when the working temperature is high.
Easy maintenance
No additional machining
Because additional machining is not necessary to adapt the seats against the ball, the assembly and maintenance of the valve are very easy when using metal Pentafite seats.
Perfect tightness
Perfect adaptation that negates any possible vanishing point
The elastic properties of the Pentafite seat material allow the automatic adaptation of the seats against the shape of the sphere, eliminating machining imperfections. In this way, it is possible to eliminate any leakage point and achieve perfect sealing.
The presence of the solid lubricant inside allows the Pentafite material to reach very high specific working pressures, resulting in tightness perfect when high-pressure gases must be stopped.
Available seat configurations
Our seats and their mechanical characteristics
Here is a table with some of our settings.
| Material | Metal mesh | Solid lubricant | Work temperature | Work pressure | Size |
| SXX series (Nickel base) | Nickel | Graphite o MoS2 | -100ºC / +780ºC | ANSI150-2500 API 10000 PN10-2500 | 1/2" - 20" |
| RXX Series (Copper Base) | Copper | Graphite | -100ºC / +500ºC | ANSI150-2500 | 1/2" - 20" |
| BXX Series (Carbon Base) | Carbon | Graphite | -100ºC / +400ºC | PN10 - 40 ANSI150-300 | 1/2" - 4" |
| Cryogenic | Only Grafoil® gaskets are used, inherently resistant to high temperatures. | -200ºC / +700ºC | ANSI150-1500 PN16-250 | 1/2" - 8" | |
| Friction factor against hardened ground surface 1500 HV min. (SXX PENTAFITE Series) | 0.2 |
| Specific maximum working pressure | 30/Kg/mm2 |
| Maximum working temperature | 780ºC |
| Maximum working pressure | 720 bar |
| Thermal expansion 0ºC - 200ºC | 14 x 10-6 |
Contact us
The KTN team will assist you with your inquiry
For any question related to KTN products or a quote, please fill out the form.