Injection stoppers / serum stoppers from West Parmaceutical Services are high quality primary packaging solutions. The injection stoppers are manufactured in accordance with the applicable GMP guidelines (DIN EN ISO 15378) under defined and certified process conditions. They are available in diameters of 13 mm and 20 mm in the latest West formulations 4432/50 (chlorobutyl) or 4023/50 (bromobutyl), among others. Also available are rubber stoppers with FluroTec®-barrier film.
| Size: | 13 mm | 20 mm | 13 mm FluroTec® | 20 mm FluroTec® |
| US Design: | V-35 | S-127 | S2-F451 | S10-F451 |
| US Formulation: | 4432/50 chlorobutyl | 4432/50 chlorobutyl | 4432/50 chlorobutyl | 4432/50 chlorobutyl |
| Europe Design: | 1104 | 1071 | 1358 | 1343 |
| Europe Formulation: | 4023/50 bromobutyl | 4023/50 bromobutyl | 4023/50 bromobutyl | 4023/50 brombutyl |
| Siliconized: | X | X | ||
| B-2 Coating: | Optional | Optional | X | X |
| FluroTec®: | X | X | ||
| Westar® RS / RU: | X | X | X | X |
| Westar® Select RS / RU: | X | X | X | X |
| Envision™: | X | X | X | X |
| NovaPure® RS / RU: | X | X |
For other West rubber formulations and stopper designs, please contact us.
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Manufacturer: West Pharmaceutical Services
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Diameter: 13 mm / 20 mm
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GMP (DIN EN ISO 15378) certified production according to European Pharmacopoeia, USP and JP
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Chlorobutyl, Bromobutyl, pure silicone
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Blowback and standard versions
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Serum stopper / injection stopper including Drug Master File (DMF)
| Ø: | Design: | Compound: | Silicone / B2: | Coating: | Finishing: | Color: |
| 13 mm | 1104 | 4023/50 | Silicone A | RTS | grey | |
| 1104 | 4023/50 | B2-42 | Westar® Select RS | grey | ||
| 1358 | 4023/50 | B2-40 | Flurotec® | Westar® RS | grey | |
| 1358 | 4023/50 | B2-40 | Flurotec® | Westar® Select RS | grey | |
| 1358 | 4023/50 | B2-40 | Flurotec® | NovaPure® RS | grey | |
| 1358 | 4023/50 | B2-40 | Flurotec® | NovaPure® RU | grey | |
| S2-F451 | 4432/50 | B2-40 | Flurotec® | Westar® RS | grey | |
| S2-F451 | 4432/50 | B2-40 | Flurotec® | Westar® Select RS | grey | |
| S2-F451 | 4432/50 | B2-40 | Flurotec® | NovaPure® RS | grey | |
| S2-F451 | 4432/50 | B2-40 | Flurotec® | NovaPure® RU | grey | |
| S2-F451 | 4432/50 | B2-TR | Flurotec® | Westar® RS | grey | |
| 20 mm | 1071 | 4020/45 | Silicone A | RTS | grey | |
| 1243 | 4110/40 | B2-40 | Flurotec® | Westar® RS | grey | |
| 1343 | 4023/50 | B2-40 | Flurotec® | Westar® RS | grey | |
| 1343 | 4023/50 | B2-40 | Flurotec® | Westar® Select RS | grey | |
| 1343 | 4023/50 | B2-40 | Flurotec® | NovaPure® RS | grey | |
| 1343 | 4023/50 | B2-40 | Flurotec® | NovaPure® RU | grey | |
| S10-F451 | 4432/50 | B2-40 | Flurotec® | Westar® RS | grey | |
| S10-F451 | 4432/50 | B2-40 | Flurotec® | Westar® Select RS | grey | |
| S10-F451 | 4432/50 | B2-40 | Flurotec® | NovaPure® RS | grey | |
| S10-F451 | 4432/50 | B2-40 | Flurotec® | NovaPure® RU | grey |
Drawings / data sheets of the stopper designs and rubber formulations or other helpful specifications and documentation are available on request.
Learn more?
Would you like to learn more about West Pharmaceutical Services products or do you have any questions? Do you need an individual offer or information about ordering, delivery and payment conditions? Contact us by phone, email or live chat.