anti-chemical function well. widely used in various industries. stable dimension. strong tension.

Detailed Introduction

FEP/PFA Encapsulated O-rings are made of special heat resistant rubber coated by fluoride plastic with unique manufacture technique. Currently we can supply FEP/PFA encapsulated silicone O-rings and FEP/PFA /MVQ encapsulated Viton O-rings.

Encapsulated 'O' rings possess the characteristic of low permanent deformation rate given by rubber O-ring, along with the special features endowed by fluoride plastic such as resisting heat, cold, oil, rub, climate changes and chemical corrosion.

 DONGFENG O-RING

Product Feature

anti-chemical function well.widely used in various industries.  stable dimension.strong tension.   

Technical data sheet

ORIGINAL    PROPERTIES			APFA+FKM	BFEP+FKM	CFEP+Silicone	DPFA+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

Product Application fields

mechanical sealingpressure vesselgas compressorreaction vesselheat exchangerboiler,filter etc.

To get further information,pls visit our website:

http://www.chinaptfe.com

FEP/MVQ O-RING