FEP encapsulated Silicone o ring

Product Name	FEP or PFA encapsulated O-Ring with viton rubber or silicone core
Structure	Outside: Teflon/PTFE FEP/PFA Inside: Viton/Silicone
Materials	PTFE FEP, PTFE PFA,Viton/FKM/FPM, silicone
Pressure	<=35MPa
Working Temperature	PTFE FEP:-60/+205 ℃. can stand 260 ℃ in short time. PTFE PFA:-60/+260℃.can stand 300℃ in short time.
Medium	air,fluid and solide medium
Compressibility	Section 2%,Dynamic 6%-20%,Static 15%-30%
Feature	1.super chemical-resistance,can resistant nearly all the chemical medium 2.good corrosiveness resistance 3.wide temperature range. 4.good wear-resistance 5.good shrinking-resistance. 6.good sealing effect, long service time
Application	pump, valve, mechanical seal, filter, air compressor, pressure vessels, reaction vessel, heat exchanger, pipe flange.
Industry	petrochemical industry. power industry. steel industry. airpllane industry. food industry. paper making industry. petrol&chemical shipping industry.

 

E - Excellent          G - Good          F - Fair          P - Poor

Material Properties

Property

NBR

EPDM

CR

Silicone

FKM

NR

SBR

PU

HNBR

FVMQ

IIR

Aflas

Abrasion Resistance

G

G

G

P

G

E

E

E

G

P

G

G

Acid Resistance

F

G

F

F

E

F

F

P

E

F

G

E

Chemical Resistance

F

E

F

G

E

F

F

F

G

E

E

E

Cold Resistance

G

G

F

E

P

G

G

G

G

G

G

P

Compression Set Resistance

G

G

F

G

E

G

G

F

G

G

F

G

Dynamic Properties

G

G

F

P

G

E

E

E

G

P

F

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