PEEK Ball Valve Seats

PEEK (Polyetheretherketone) seats are mainly used in floating trunnion mounted ball valves. The sallow molded PEEK valve seats are characterized a superior balance of chemical and hydrolysis resistance under higher temperatures, providing high temperature and high pressure resistance, fatigued esistance, hydrolysis and flame retardation.


  • Outstanding high temperature resistance: PEEK has a high melting point (334℃) and glass transition temperature (143℃), continuous use temperature of 260℃, its 30%GF or CF enhanced PEEK load thermal variation temperature can be up to 316℃.
  • Excellent self-lubricity (corrosion resistance): PEEK resin is suitable for situations where the low friction coefficient and wear resistance are strictly required. It has a similar corrosion resistance to nickel alloy and is more resistant to acid and base than polyimide at high temperatures.
  • Good processability: PEEK has good fluidity and high thermal decomposition temperature under high temperature and can be processed by injection molding, molding, extrusion molding, blowing molding, melting spinning and other processing methods.
Size 10 to 200 mm
Temperate range From -50 to +250 °C
Tolerances +/- 15 µm
Pressure range 0 to 0.5 MPa