encapsulated o rings

Encapsulated teflon o rings, include FEP/PFA coatiing with Silicone/FKM o ring., Polytetra fluoroe thylene o rings. - details see: https://www.machineto.com/encapsulated-o-rings-10282003

Place of Origin:Fujian China (Mainland)

Brand Name:MF

color:red/black

Material:Silicone/FKM+FEP/PFA

contact supplier for encapsulated o rings

FEP envelope silicone O-rings are made of special heat resistant rubber coated by fluoride plastic with unique manufacture technique. Therefore,they possess the characteristic of low permanent deformation rate given by rubber O-rings,along with the special features endowed by fluoride plastic such as resisting heat,cold,oil,rub,climate changersand chemical corrosion.

Encapsulated teflon o rings, include FEP/PFA coatiing with Silicone/FKM o rings. Polytetra fluoroe thylene o rings. The thickness of coating is 0.2mm.

ORIGINAL PROPERTIES	A PFA+FKM	B FEP+FKM	C FEP+Silicone	D PFA+silcione
HARDNESS SHORE A	70~90	70~90	60~75	60~75
TENSILE STRENGTH,MPa, MIN	16	16	16	16
ELONGATION, %, MIN	60	60	80	80
COMPRESSION RATE, %	50~60	50~60	60~75	60~75
COMPRESSION SET, MAX, %	10	10	20	20

HEAT RESISTANCE 24H . AT 230°C
CHANGE IN HARDNESS, POINTS	-5~+5	-5~+5	-5~+5	-5~+5
CHANGE IN TENSILES STRENGTH, %	-15	-15	-15	-15
CHANGE IN ULTIMATE ELONGATION, %	-20	-20	-20	-20

COMPRESSION SET, MAX, 70H AT 175°C	≤20	≤20	≤30	≤30

COLLOR	BROWN	BLACK	RED	RED

Suggestion Working Condition
Working temperature °C	-20~250	-20~200	-50~200	-50~250
Working pressure MPa	0~35

Working Medium: All medium except for the Elemental fluorine and molten sodium metal.

Encapsulated seals are available with two types of Teflon® jacket - FEP which is standard, and PFA for more demanding applications.

The energising core is available in Viton®, Silicone or EPDM. Viton®is offered as the standard because of its superior compression set. For low-temperature applications, or where lower closure forces are required either a solid Silicone or hollow Silicone core is specified