The O-rings used in Chemyx stainless steel syringes are Buna-N O-ring. The Buna-N/Nitrile/NBR seals offer good mechanical performance with resistance to water, most basic oils, lubricants and some fuels, many pneumatic, hydraulic systems, and the default choice for basic applications. Buna-N o-rings are not recommended for exposure to sunlight, UV light, ozone and general outdoor weathering or hash chemicals, acids, keytones and many others. The Buna -N O-ring also offer superior abrasion and tear resistance, and are best for heavy-duty industrial applications. The operational temperature range of the O-ring is from -31°F to 250°F (-35°C to 121°C).
To learn more about Chemical Compatibility, we have prepared a guide for common syringe assemblies. These are only general guidelines; we recommend checking online resources to confirm compatibility with your specific media. The following is a thorough chemical compatibility resource here.
The following are O-ring sizes that are used with Chemyx Stainless Steel Syringes:
|Syringe Size||Syringe ID||O-Rings ID||O-Rings OD||O-Rings CS|
|6 mL||9.53 mm||1/4″||3/8″||0.70″|
|20 mL||19.13 mm||9/16″||3/4″||0.103″|
|50 mL||28.60 mm||15/16″||1 1/8″||0.103″|
|100 mL||34.90 mm||1 3/16″||1 3/8″||0.103″|
|200 mL (new type)||43.96 mm||1 1/2″||1 5/8″||0.139″|
|200 mL (old type)||55.00 mm||1 15/16″||2 1/8″||0.139″|
O-rings made with any material with the above inner and outer diameters can be used with Chemyx Stainless Steel Syringes.