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High Performance Small Or Big EPDM FKM FFKM NBR Silicone Rubber O Rings/O-Ring Seal
O-rings are sealing elements that can be used statically or dynamically in many applications.
FKM FFKM NBR O Rings Rubber EPDM O Ring Seal Customized SGS approved
KELONG Rubber O-Ring Seals | ||||
Material | Hardness(Shore A) | Temperature | Size | |
Standard Size | Available | |||
NBR(Buna,Nitrile) FKM(FPM) EPDM Silicone(VMQ) HNBR EFKM PU PTFE | 60-90 70-90 60-90 10-70 60-90 70-90 90~95 60~70 | 55℃-110℃ -20℃-250℃ -45℃-150℃ 60℃-280℃ 48℃-180℃ -18℃-326℃ -40℃-90℃ -100℃-280℃ | AS-568(USA) JIS-B2401(Japan) DIN-3771(Germany) BS-1516(UK) ISO3601(International) R(France) | ID≤2000mm CS≤40mm |
Resistance | Color | Certificate | Application | |
Hydraulic Fluid Engine Oil Chemical Ozone Steam & Hot Water Low Temperature High Temperature | Black Brown Red Green White Blue Clear Customized | IS09001 IS014001 TS16949 RoHS REACH FDA SGS | Auto Industry Construction Machinery Machine Tool Equipment Food Health Water Treatment Chemical Processing Hydraulic Pneumatic Industrial Manufaturing |
Chemical Resistance Guide of Elastomer | |||||||||
Fluid | HNBR | NBR | EPDM | CR | CSM | VMa | FKM | ACM | |
Steam (150°℃) | 〇 | × | ◎ | × | × | × | △ | × | |
Organic Acid | Acetic Acid | 〇 | 〇 | ◎ | ◎ | ◎ | ◎ | 〇 | × |
Inorganic Acid | hydrochloric Acid (25%) | 〇 | 〇 | ◎ | ◎ | ◎ | ◎ | 〇 | × |
Phosphoric Acid (20%) | ◎ | 〇 | ◎ | 〇 | ◎ | 〇 | ◎ | — | |
Nitric Acid (25%) | 〇 | × | 〇 | ◎ | ◎ | 〇 | △ | × | |
Base | Sodium Hydroxide (30%) | ◎ | 〇 | ◎ | × | ◎ | 〇 | 〇 | 一 |
Ammonia(28%) | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | 〇 | × | |
Salt Solution | NaCl(30%) | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | — |
Na: CO₃ (10%) | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | 〇 | — | |
Oxidizing Agent | Hydrogen Peroxide (3%) | 〇 | △ | 〇 | △ | ◎ | ◎ | ◎ | — |
Sodium Chloride(5%) | 〇 | × | 〇 | × | 〇 | 〇 | ◎ | × | |
Parafinc Fluid | Isooctane | ◎ | ◎ | × | 〇 | 〇 | × | ◎ | ◎ |
Aromatic Fluid | Benzene | △ | △ | × | × | × | △ | ◎ | × |
Chlorinated Fluid | Trichloroethylene | △ | △ | × | × | × | × | ◎ | 一 |
Alcohol | Methanol | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | △ | × |
Ethanol | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | × | |
Ether | Ethyl Ether | △ | △ | △ | × | × | × | × | × |
Ester | Ethyl Ester | × | × | 〇 | △ | △ | × | △ | — |
Ketone | Methyl Ethyl Ketone | × | × | ◎ | × | × | × | × | × |
Aldehyde | Furfural | 〇 | △ | ◎ | × | × | × | × | × |
Amine | Trihydroxyethylamine | ◎ | △ | ◎ | ◎ | ◎ | × | × | × |
Carbon Disulfide | △ | △ | × | × | × | — | ◎ | — | |
◎ :Excellent 〇:Good △:Fair ×:Poor |