SUNWELL 1710-E FEP/PFA Encapsulated O-Rings consist of an elastomer core and a seamlessly closed of modified PTFE.

The elastomer core made of FKM (VITON) or VMQ (Silicone) guarantees an even pretensioning at the sealing ponts. The seamless casing is composed of FEP (Fluoinated Ethylene Propylene) or PFA (Perfluoroalkoxy-copolymer). It ensures reliable sealing and high resistance to aggressive media. This products performance silimar to that of a PTFE material.
Encapsulated O-Rings are exclusively used in static applications since movement or abrasive media can destroy the casing. Aggressive chemicals or extreme temperature can destroy conventional O-Rings and will ultimately leads to leakage.

FEP/PFA Encapsulated O-Rings can be used wherever an elastomer’s chemical resistance is insufficient. Here FEP and PFA materials offer chemical resistance while the elastomer core provides elesticity. Seals made of PTFE are not an optioni in this case. The material does offer outstanding media resistance, but is not associated with elastricity.

Advantages:
> Very good resistance to nearly all media (Exceptions are alkali metals and some fluorine compounds)
> Applications in broad range of temperatures.
> Superbly suited for use in the food, chemical and pharpaceurical industries
> Low contamination
> Low permeation
> Low coefficient of friction prevents the stick-slip effect
> FDA compliant (According to requests)
> Cost-effective, high-performance seal for many critical application areas.
Versions:
◎FEP encapsulated VMQ gasket; ◎FEP encapsulated FKM gasket; ◎PFA encapsulated VMQ gasket; ◎PFA encapsulated FKM gasket;
Encapsulated O ring gasket standard sizes
1" , 1-1/4" , 1-1/2" , 2", 2-1/2" , 3" , 4" , 5" , 6" , 8"
Other lager sizes are available,such as 4780mm*14mm*14mm.