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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 | 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 | |||||
Product Application fields
- mechanical sealing
- pressure vessel
- gas compressor
- reaction vessel
- heat exchanger
- boiler,filter etc.
ISO Certificate
To get further information, pls visit our website:
http://www.chinaptfe.com
Chemical resistance FEP/FPM O Ring 2"
