Food Industry O Rings EPDM With Ktw , Heat Resistant O Rings Customized
Standard AS568 EPDM O-Rings
All stocked EPDM AS568 o-rings have three measurement types. First, a nominal inch reference, then actual inch sizes, and finally the metric size displayed in millimeters. EPDM o-rings are stocked and cataloged by their AS568 number. This number references the Aerospace Standard 568 (AS 568) which was published by the SAE (Society of Automotive Engineers). Each o-ring is assigned a dash number which correlates directly to an exact o-ring size. You may view a complete chart of these o-ring sizes here
Standard Metric EPDM O-Rings
EPDM O-rings are available in several metric sizes. EPDM metric O-rings are cataloged by their cross section and inside diameter. Columbia references the metric EPDM o-rings by the compound number and the cross section along with the inside diameter. You may view a complete chart of the metric o-ring sizeshere.
Custom EPDM O-Rings
EPDM O-rings can be made in custom sizes to fit any application specific needs. Our engineering staff can review your application and design a solution that satisfies those requirements. You can find assistance with o-ring gland design here. You can find assistance with o-ring design here. To request a quote on your o-ring specifications please submit a RFQ here.
| Press Cure | | Post Cure |
| Sheet : 5min 170℃ | | Sheet : 1 hrs 125℃ |
| Button : 10 min 170℃ | | Button : 1 hrs 125℃ |
| ORIGINAL PROPERTIES | SPECIFICATION | TEST RESULT |
| HARDNESS SHORE A | 70°±5 | 70 |
| TENSILE STRENGTH, MPA, MIN | 14 | 14.9 |
| ULTIMATE ELONGATION, ％, MIN | 300 | 327 |
| SPECIFIC GRAVITY (g/cm3) | | 1.15 |
| | | | |
| HEAT RESISTANCE 70 H . AT 100℃ | | |
| CHANGE IN HARDNESS, POINTS | 10 | 2 |
| CHANGE IN TENSILES STRENGTH,% | -25 | -4.1 |
| ULTIMATE ELONGATION,MAX % | -25 | -3.4 |
| | | | |
| COMPRESSION SET, MAX, 22H AT 70℃ | 25 | 8 |
| | | | |
| RESISTANCE TO OZONE | | | |
| EXPOSURE METHOD B | | N0 CRACK | PASS |
| | | | |
| WATER RESISTANCE:100℃,70H (EA14) | | |
| VOLUME CHAGE,% | ±5 | 3.7 |
| | | | |
| LOW-TEMPERATURE BRITTLENESS NONBRITTLE | | |
| AFTER 3MIN AT -55°C (F19) | NONBRITTLE | PASS |
