Today's KNOWLEDGE Share:PEEK FOR HIGH PRESSURE SEALS

Today's KNOWLEDGE Share

3 REASONS YOU SHOULD CONSIDER PEEK FOR HIGH PRESSURE POLYMER SEALS

1.STRENGTH:

PEEK seals can withstand pressures up to 30 ksi (207 MPa). This is due to PEEK’s combination of high strength and high modulus. 

The three different grades of PEEK: Virgin PEEK,30% Glass fiber reinforced PEEK, and 30% Carbon fiber reinforced PEEK.

Tensile Strength: 14 ksi,18.9 ksi, 31 ksi

Tensile Modulus:507 ksi,1600 ksi,3050 ksi

2.OPERATING TEMPERATURE:

High pressure applications often go hand in hand with extreme temperatures. Fortunately, PEEK offers a wide operating temperature range. It works for cryogenic applications down to -100°F and still retains its key mechanical properties in temperatures up to 450°F. 

3.CHEMICAL RESISTANCE:

Another reason for PEEK’s popularity in high-pressure applications involves its chemical resistance. Many times these same high-pressure environments involve harsh or caustic chemicals that can compromise the physical properties of even the most outstanding polymers. PEEK, on the other hand, can retain its strength even in the presence of harsh chemicals with just a few exceptions.

PEEK’s combination of strength and stiffness makes it a prime choice for high pressure applications, but when that is combined with its resistance to chemical attack and operating temperature range, PEEK quickly begins to stand out as a first choice for high pressure polymer seals. Combine that with its resistance to both wear and creep, and PEEK is definitely a winner when it comes to intense, demanding seal applications. 

source:Advanced EMC technologies