Catalog Number - 9502S-33C-B

Improve autosampler alignment and injection reliability with screw top caps designed for challenging or high‑throughput workflows.

9502S-33C-B caps feature a larger 6 mm center hole, providing an increased target area for autosampler needles. This design is especially beneficial for systems that may have alignment variability or where smaller openings can lead to needle contact with the cap edge during injection. The knurled polypropylene construction ensures secure grip and consistent manual handling.

The blue silicone rubber / white PTFE pre‑slit septa allows smoother needle penetration while maintaining reliable resealability. The PTFE layer provides excellent chemical resistance and inertness, while the silicone backing supports flexibility and repeated injections. This combination helps improve injection consistency and reduce potential septa damage in demanding analytical applications.

Key Benefits

• 6 mm opening provides larger target area for needle alignment

• Reduces risk of needle contact with cap edge

• Pre‑slit septa improves penetration and injection consistency

• PTFE/silicone septa offers chemical resistance and resealability

• Knurled cap design improves grip and handling

• Compatible with standard 9‑425 (ND9) screw thread vials

• Bulk pricing available for high‑volume use

Typical Applications

• LC‑MS and LC‑MS/MS workflows

• HPLC and UHPLC analysis

• Autosamplers with alignment sensitivity

• High‑throughput laboratory environments

• Routine and regulated analytical testing

Specifications

• Cap Type: Screw Top

• Thread Size: 9‑425 (ND9)

• Cap Material: Polypropylene (knurled, blue)

• Septa: Blue silicone rubber / white PTFE

• Septa Type: Pre‑slit

• Opening Size: 6 mm

• Compatibility: 12 × 32 mm autosampler vials

• Packaging: Bulk (Custom Item)

Compatibility

• Designed for 9‑425 (ND9) screw thread autosampler vials

• Compatible with standard 12 × 32 mm vial formats

• Suitable for HPLC and LC‑MS workflows

Performance and Design Notes

• Larger opening reduces needle alignment sensitivity

• Pre‑slit septa allows smoother, repeatable needle entry

• PTFE layer minimizes analyte interaction

• Designed to improve autosampler reliability

Important Notes

• Custom item with bulk pricing available

• Ideal for systems where needle targeting is critical

• Enhances performance in high‑throughput or sensitive workflows

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Custom Item Pricing Information

• Please contact Customer Service for formal quotation, lead time, and ordering assistance.

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